Repository: webpack/webpack
Pull request #7120 (2018-04-24 21:56:19)

Fix - Exits abruptly when invalid JSON
**What kind of change does this PR introduce?**
Bugfix https://github.com/webpack/webpack/issues/7082

**Summary**
Invalid JSON file causes webpack to abnormally exit. Look at the issue https://github.com/webpack/webpack/issues/7082 for further details

**Does this PR introduce a breaking change?** 
No


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webpack-bot: <!-- identifier: ci-result -->

@kamranahmedse Please review the following output log for errors:
```text
  138 failing

  1) ConfigTestCases target web should provide a crypto shim:
     TypeError: Cannot convert undefined or null to object
      at Object.module.exports.ctor.super_ (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:34799:23)
      at __webpack_require__ (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:20:30)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:39126:2)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)

 
```
<details>
  <summary>Show remaining errors</summary>

```text
 2) ConfigTestCases target webworker should provide a crypto shim:
     TypeError: Cannot convert undefined or null to object
      at Object.module.exports.ctor.super_ (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:34799:23)
      at __webpack_require__ (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:20:30)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:39123:2)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)

  3) TestCases normal json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  4) TestCases normal json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  5) TestCases normal json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  6) TestCases normal json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  7) TestCases normal json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  8) TestCases normal loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  9) TestCases normal loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  10) TestCases normal scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/normal/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  11) TestCases production json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/data/bundle.js:31:174)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  12) TestCases production json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-by-name/bundle.js:37:331)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  13) TestCases production json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-by-name-with-concatenation/bundle.js:41:279)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  14) TestCases production json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-with-default/bundle.js:43:342)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  15) TestCases production json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-with-default-with-concatenation/bundle.js:48:269)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  16) TestCases production loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/loaders/json-loader/bundle.js:55:200)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  17) TestCases production loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/loaders/json-loader/bundle.js:55:367)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  18) TestCases production scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/production/scope-hoisting/json-reexport-6700/bundle.js:20:239)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  19) TestCases development json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/data/bundle.js:132:82)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  20) TestCases development json import-by-name should be possible to import json data:
     TypeError: Cannot read property '2' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  21) TestCases development json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property '2' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-by-name-with-concatenation/bundle.js:176:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  22) TestCases development json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  23) TestCases development json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-with-default-with-concatenation/bundle.js:190:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  24) TestCases development loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/loaders/json-loader/bundle.js:4429:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  25) TestCases development loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/loaders/json-loader/bundle.js:4435:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  26) TestCases development scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it../scope-hoisting/json-reexport-6700/index.js.it (/home/travis/build/webpack/webpack/test/js/development/scope-hoisting/json-reexport-6700/bundle.js:115:45)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  27) TestCases hot json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/data/bundle.js:803:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  28) TestCases hot json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-by-name/bundle.js:832:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  29) TestCases hot json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-by-name-with-concatenation/bundle.js:830:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  30) TestCases hot json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-with-default/bundle.js:846:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  31) TestCases hot json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-with-default-with-concatenation/bundle.js:844:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  32) TestCases hot loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/loaders/json-loader/bundle.js:5111:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  33) TestCases hot loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/loaders/json-loader/bundle.js:5117:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  34) TestCases hot scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/hot/scope-hoisting/json-reexport-6700/bundle.js:819:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  35) TestCases hot-multi-step json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/data/bundle.js:803:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  36) TestCases hot-multi-step json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-by-name/bundle.js:832:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  37) TestCases hot-multi-step json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-by-name-with-concatenation/bundle.js:830:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  38) TestCases hot-multi-step json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-with-default/bundle.js:846:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  39) TestCases hot-multi-step json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-with-default-with-concatenation/bundle.js:844:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  40) TestCases hot-multi-step loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/loaders/json-loader/bundle.js:5111:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  41) TestCases hot-multi-step loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/loaders/json-loader/bundle.js:5117:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  42) TestCases hot-multi-step scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/hot-multi-step/scope-hoisting/json-reexport-6700/bundle.js:819:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  43) TestCases devtool-eval json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/data/index.js?:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  44) TestCases devtool-eval json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  45) TestCases devtool-eval json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  46) TestCases devtool-eval json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  47) TestCases devtool-eval json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  48) TestCases devtool-eval loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  49) TestCases devtool-eval loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  50) TestCases devtool-eval scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack:///./scope-hoisting/json-reexport-6700/index.js?:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  51) TestCases devtool-eval-named-modules json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/data/index.js?:2:82)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  52) TestCases devtool-eval-named-modules json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  53) TestCases devtool-eval-named-modules json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  54) TestCases devtool-eval-named-modules json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  55) TestCases devtool-eval-named-modules json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  56) TestCases devtool-eval-named-modules loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  57) TestCases devtool-eval-named-modules loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  58) TestCases devtool-eval-named-modules scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack:///./scope-hoisting/json-reexport-6700/index.js?:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  59) TestCases devtool-eval-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  60) TestCases devtool-eval-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  61) TestCases devtool-eval-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  62) TestCases devtool-eval-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  63) TestCases devtool-eval-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  64) TestCases devtool-eval-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  65) TestCases devtool-eval-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  66) TestCases devtool-eval-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  67) TestCases devtool-inline-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  68) TestCases devtool-inline-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  69) TestCases devtool-inline-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  70) TestCases devtool-inline-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  71) TestCases devtool-inline-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  72) TestCases devtool-inline-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  73) TestCases devtool-inline-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  74) TestCases devtool-inline-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  75) TestCases devtool-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  76) TestCases devtool-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  77) TestCases devtool-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  78) TestCases devtool-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  79) TestCases devtool-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  80) TestCases devtool-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  81) TestCases devtool-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  82) TestCases devtool-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  83) TestCases devtool-cheap-inline-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  84) TestCases devtool-cheap-inline-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  85) TestCases devtool-cheap-inline-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  86) TestCases devtool-cheap-inline-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  87) TestCases devtool-cheap-inline-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  88) TestCases devtool-cheap-inline-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  89) TestCases devtool-cheap-inline-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  90) TestCases devtool-cheap-inline-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  91) TestCases devtool-cheap-eval-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  92) TestCases devtool-cheap-eval-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  93) TestCases devtool-cheap-eval-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  94) TestCases devtool-cheap-eval-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  95) TestCases devtool-cheap-eval-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  96) TestCases devtool-cheap-eval-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  97) TestCases devtool-cheap-eval-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  98) TestCases devtool-cheap-eval-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  99) TestCases devtool-cheap-eval-module-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  100) TestCases devtool-cheap-eval-module-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  101) TestCases devtool-cheap-eval-module-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  102) TestCases devtool-cheap-eval-module-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  103) TestCases devtool-cheap-eval-module-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  104) TestCases devtool-cheap-eval-module-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  105) TestCases devtool-cheap-eval-module-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  106) TestCases devtool-cheap-eval-module-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  107) TestCases devtool-cheap-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  108) TestCases devtool-cheap-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  109) TestCases devtool-cheap-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  110) TestCases devtool-cheap-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  111) TestCases devtool-cheap-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  112) TestCases devtool-cheap-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  113) TestCases devtool-cheap-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  114) TestCases devtool-cheap-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  115) TestCases minimized-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  116) TestCases minimized-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  117) TestCases minimized-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:27:3)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  118) TestCases minimized-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  119) TestCases minimized-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:30:21)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  120) TestCases minimized-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  121) TestCases minimized-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  122) TestCases minimized-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///2:26:3)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  123) TestCases minimized-hashed-modules json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/data/bundle.js:25:179)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  124) TestCases minimized-hashed-modules json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-by-name/bundle.js:37:356)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  125) TestCases minimized-hashed-modules json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-by-name-with-concatenation/bundle.js:23:304)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  126) TestCases minimized-hashed-modules json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-with-default/bundle.js:19:372)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  127) TestCases minimized-hashed-modules json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-with-default-with-concatenation/bundle.js:12:299)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  128) TestCases minimized-hashed-modules loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/loaders/json-loader/bundle.js:31:210)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  129) TestCases minimized-hashed-modules loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/loaders/json-loader/bundle.js:31:382)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  130) TestCases minimized-hashed-modules scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/scope-hoisting/json-reexport-6700/bundle.js:14:249)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  131) TestCases all-combined json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/data/bundle.js:31:193)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  132) TestCases all-combined json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-by-name/bundle.js:37:426)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  133) TestCases all-combined json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-by-name-with-concatenation/bundle.js:41:374)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  134) TestCases all-combined json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-with-default/bundle.js:43:456)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  135) TestCases all-combined json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-with-default-with-concatenation/bundle.js:48:383)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  136) TestCases all-combined loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/loaders/json-loader/bundle.js:49:267)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  137) TestCases all-combined loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/loaders/json-loader/bundle.js:49:466)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  138) TestCases all-combined scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/all-combined/scope-hoisting/json-reexport-6700/bundle.js:20:325)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  
```
</details>

See [complete report here](https://travis-ci.org/webpack/webpack/builds/370794634?utm_source&#x3D;github_status&amp;utm_medium&#x3D;notification).
webpack-bot: <!-- identifier: ci-result -->

@kamranahmedse Please review the following output log for errors:
```text
  138 failing

  1) ConfigTestCases target web should provide a crypto shim:
     TypeError: Cannot convert undefined or null to object
      at Function.keys (<anonymous>)
      at Object.module.exports.ctor.super_ (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:34799:23)
      at __webpack_require__ (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:20:30)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:39126:2)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7

 
```
<details>
  <summary>Show remaining errors</summary>

```text
 2) ConfigTestCases target webworker should provide a crypto shim:
     TypeError: Cannot convert undefined or null to object
      at Function.keys (<anonymous>)
      at Object.module.exports.ctor.super_ (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:34799:23)
      at __webpack_require__ (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:20:30)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:39123:2)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7

  3) TestCases normal json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  4) TestCases normal json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  5) TestCases normal json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  6) TestCases normal json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  7) TestCases normal json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  8) TestCases normal loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/loaders/json-loader/bundle.js:4440:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  9) TestCases normal loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/loaders/json-loader/bundle.js:4446:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  10) TestCases normal scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/normal/scope-hoisting/json-reexport-6700/bundle.js:148:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  11) TestCases production json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2296)
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/data/bundle.js:31:174)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  12) TestCases production json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-by-name/bundle.js:37:332)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  13) TestCases production json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-by-name-with-concatenation/bundle.js:41:280)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  14) TestCases production json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2296)
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-with-default/bundle.js:43:342)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  15) TestCases production json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2296)
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-with-default-with-concatenation/bundle.js:48:269)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  16) TestCases production loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/loaders/json-loader/bundle.js:55:201)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  17) TestCases production loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/loaders/json-loader/bundle.js:55:368)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  18) TestCases production scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/production/scope-hoisting/json-reexport-6700/bundle.js:20:240)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  19) TestCases development json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1904:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/data/bundle.js:132:82)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  20) TestCases development json import-by-name should be possible to import json data:
     TypeError: Cannot read property '2' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  21) TestCases development json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property '2' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-by-name-with-concatenation/bundle.js:176:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  22) TestCases development json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1904:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  23) TestCases development json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1904:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-with-default-with-concatenation/bundle.js:190:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  24) TestCases development loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/loaders/json-loader/bundle.js:4429:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  25) TestCases development loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/loaders/json-loader/bundle.js:4435:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  26) TestCases development scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context../scope-hoisting/json-reexport-6700/index.js.it (/home/travis/build/webpack/webpack/test/js/development/scope-hoisting/json-reexport-6700/bundle.js:115:46)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  27) TestCases hot json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2597:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/data/bundle.js:803:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  28) TestCases hot json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-by-name/bundle.js:832:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  29) TestCases hot json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-by-name-with-concatenation/bundle.js:830:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  30) TestCases hot json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2597:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-with-default/bundle.js:846:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  31) TestCases hot json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2597:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-with-default-with-concatenation/bundle.js:844:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  32) TestCases hot loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/loaders/json-loader/bundle.js:5111:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  33) TestCases hot loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/loaders/json-loader/bundle.js:5117:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  34) TestCases hot scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/hot/scope-hoisting/json-reexport-6700/bundle.js:819:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  35) TestCases hot-multi-step json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2597:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/data/bundle.js:803:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  36) TestCases hot-multi-step json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-by-name/bundle.js:832:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  37) TestCases hot-multi-step json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-by-name-with-concatenation/bundle.js:830:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  38) TestCases hot-multi-step json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2597:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-with-default/bundle.js:846:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  39) TestCases hot-multi-step json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2597:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-with-default-with-concatenation/bundle.js:844:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  40) TestCases hot-multi-step loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/loaders/json-loader/bundle.js:5111:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  41) TestCases hot-multi-step loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/loaders/json-loader/bundle.js:5117:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  42) TestCases hot-multi-step scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/hot-multi-step/scope-hoisting/json-reexport-6700/bundle.js:819:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  43) TestCases devtool-eval json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (webpack:///(webpack)/node_modules/should/cjs/should.js?:258:17)
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/data/index.js?:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  44) TestCases devtool-eval json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  45) TestCases devtool-eval json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  46) TestCases devtool-eval json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack:///(webpack)/node_modules/should/cjs/should.js?:258:17)
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  47) TestCases devtool-eval json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack:///(webpack)/node_modules/should/cjs/should.js?:258:17)
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  48) TestCases devtool-eval loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:5:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  49) TestCases devtool-eval loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:11:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  50) TestCases devtool-eval scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack:///./scope-hoisting/json-reexport-6700/index.js?:6:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  51) TestCases devtool-eval-named-modules json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (webpack:///(webpack)/node_modules/should/cjs/should.js?:258:17)
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/data/index.js?:2:82)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  52) TestCases devtool-eval-named-modules json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  53) TestCases devtool-eval-named-modules json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  54) TestCases devtool-eval-named-modules json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack:///(webpack)/node_modules/should/cjs/should.js?:258:17)
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  55) TestCases devtool-eval-named-modules json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack:///(webpack)/node_modules/should/cjs/should.js?:258:17)
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  56) TestCases devtool-eval-named-modules loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:5:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  57) TestCases devtool-eval-named-modules loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:11:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  58) TestCases devtool-eval-named-modules scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack:///./scope-hoisting/json-reexport-6700/index.js?:6:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  59) TestCases devtool-eval-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  60) TestCases devtool-eval-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  61) TestCases devtool-eval-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  62) TestCases devtool-eval-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  63) TestCases devtool-eval-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  64) TestCases devtool-eval-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  65) TestCases devtool-eval-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  66) TestCases devtool-eval-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  67) TestCases devtool-inline-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  68) TestCases devtool-inline-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  69) TestCases devtool-inline-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  70) TestCases devtool-inline-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  71) TestCases devtool-inline-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  72) TestCases devtool-inline-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/loaders/json-loader/bundle.js:4440:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  73) TestCases devtool-inline-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/loaders/json-loader/bundle.js:4446:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  74) TestCases devtool-inline-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  75) TestCases devtool-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  76) TestCases devtool-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  77) TestCases devtool-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  78) TestCases devtool-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  79) TestCases devtool-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  80) TestCases devtool-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/loaders/json-loader/bundle.js:4440:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  81) TestCases devtool-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/loaders/json-loader/bundle.js:4446:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  82) TestCases devtool-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  83) TestCases devtool-cheap-inline-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  84) TestCases devtool-cheap-inline-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  85) TestCases devtool-cheap-inline-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  86) TestCases devtool-cheap-inline-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  87) TestCases devtool-cheap-inline-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  88) TestCases devtool-cheap-inline-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/loaders/json-loader/bundle.js:4440:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  89) TestCases devtool-cheap-inline-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/loaders/json-loader/bundle.js:4446:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  90) TestCases devtool-cheap-inline-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  91) TestCases devtool-cheap-eval-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  92) TestCases devtool-cheap-eval-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  93) TestCases devtool-cheap-eval-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  94) TestCases devtool-cheap-eval-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  95) TestCases devtool-cheap-eval-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  96) TestCases devtool-cheap-eval-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  97) TestCases devtool-cheap-eval-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  98) TestCases devtool-cheap-eval-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  99) TestCases devtool-cheap-eval-module-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  100) TestCases devtool-cheap-eval-module-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  101) TestCases devtool-cheap-eval-module-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  102) TestCases devtool-cheap-eval-module-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  103) TestCases devtool-cheap-eval-module-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  104) TestCases devtool-cheap-eval-module-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  105) TestCases devtool-cheap-eval-module-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  106) TestCases devtool-cheap-eval-module-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  107) TestCases devtool-cheap-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  108) TestCases devtool-cheap-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  109) TestCases devtool-cheap-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  110) TestCases devtool-cheap-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  111) TestCases devtool-cheap-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:1926:17)
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  112) TestCases devtool-cheap-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/loaders/json-loader/bundle.js:4440:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  113) TestCases devtool-cheap-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/loaders/json-loader/bundle.js:4446:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  114) TestCases devtool-cheap-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:54)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  115) TestCases minimized-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  116) TestCases minimized-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  117) TestCases minimized-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:27:3)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  118) TestCases minimized-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  119) TestCases minimized-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.fail (webpack-internal:///7:258:17)
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:30:21)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  120) TestCases minimized-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  121) TestCases minimized-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:11)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  122) TestCases minimized-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///2:26:4)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  123) TestCases minimized-hashed-modules json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2321)
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/data/bundle.js:25:179)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  124) TestCases minimized-hashed-modules json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-by-name/bundle.js:37:357)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  125) TestCases minimized-hashed-modules json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-by-name-with-concatenation/bundle.js:23:305)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  126) TestCases minimized-hashed-modules json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2321)
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-with-default/bundle.js:19:372)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  127) TestCases minimized-hashed-modules json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2321)
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-with-default-with-concatenation/bundle.js:12:299)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  128) TestCases minimized-hashed-modules loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/loaders/json-loader/bundle.js:31:211)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  129) TestCases minimized-hashed-modules loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/loaders/json-loader/bundle.js:31:383)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  130) TestCases minimized-hashed-modules scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/scope-hoisting/json-reexport-6700/bundle.js:14:250)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  131) TestCases all-combined json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:2570)
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/data/bundle.js:31:193)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  132) TestCases all-combined json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-by-name/bundle.js:37:427)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  133) TestCases all-combined json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-by-name-with-concatenation/bundle.js:41:375)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  134) TestCases all-combined json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:2570)
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-with-default/bundle.js:43:456)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  135) TestCases all-combined json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.fail (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:2570)
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-with-default-with-concatenation/bundle.js:48:383)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  136) TestCases all-combined loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/loaders/json-loader/bundle.js:49:268)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  137) TestCases all-combined loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/loaders/json-loader/bundle.js:49:467)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  

  138) TestCases all-combined scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/all-combined/scope-hoisting/json-reexport-6700/bundle.js:20:326)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:361:14)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at next (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:295:14)
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at runCallback (timers.js:794:20)
      at tryOnImmediate (timers.js:752:5)
      at processImmediate [as _immediateCallback] (timers.js:729:5)
  
```
</details>

See [complete report here](https://travis-ci.org/webpack/webpack/builds/370801896?utm_source&#x3D;github_status&amp;utm_medium&#x3D;notification).
webpack-bot: <!-- identifier: ci-result -->

@kamranahmedse Please review the following output log for errors:
```text
  138 failing

  1) ConfigTestCases target web should provide a crypto shim:
     TypeError: Cannot convert undefined or null to object
      at Object.module.exports.ctor.super_ (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:34799:23)
      at __webpack_require__ (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:20:30)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/config/target/web/bundle0.js:39126:2)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)

 
```
<details>
  <summary>Show remaining errors</summary>

```text
 2) ConfigTestCases target webworker should provide a crypto shim:
     TypeError: Cannot convert undefined or null to object
      at Object.module.exports.ctor.super_ (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:34799:23)
      at __webpack_require__ (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:20:30)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/config/target/webworker/bundle0.js:39123:2)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)

  3) TestCases normal json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  4) TestCases normal json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  5) TestCases normal json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  6) TestCases normal json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  7) TestCases normal json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/normal/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  8) TestCases normal loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  9) TestCases normal loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/normal/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  10) TestCases normal scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/normal/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  11) TestCases production json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/data/bundle.js:31:174)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  12) TestCases production json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-by-name/bundle.js:37:331)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  13) TestCases production json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-by-name-with-concatenation/bundle.js:41:279)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  14) TestCases production json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-with-default/bundle.js:43:342)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  15) TestCases production json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/production/chunks/parsing/bundle.js:49:2747)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/json/import-with-default-with-concatenation/bundle.js:48:269)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  16) TestCases production loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/loaders/json-loader/bundle.js:55:200)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  17) TestCases production loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/production/loaders/json-loader/bundle.js:55:367)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  18) TestCases production scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/production/scope-hoisting/json-reexport-6700/bundle.js:20:239)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  19) TestCases development json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/data/bundle.js:132:82)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  20) TestCases development json import-by-name should be possible to import json data:
     TypeError: Cannot read property '2' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  21) TestCases development json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property '2' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-by-name-with-concatenation/bundle.js:176:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  22) TestCases development json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  23) TestCases development json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/development/chunks/parsing/bundle.js:1981:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/json/import-with-default-with-concatenation/bundle.js:190:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  24) TestCases development loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/loaders/json-loader/bundle.js:4429:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  25) TestCases development loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/development/loaders/json-loader/bundle.js:4435:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  26) TestCases development scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it../scope-hoisting/json-reexport-6700/index.js.it (/home/travis/build/webpack/webpack/test/js/development/scope-hoisting/json-reexport-6700/bundle.js:115:45)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  27) TestCases hot json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/data/bundle.js:803:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  28) TestCases hot json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-by-name/bundle.js:832:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  29) TestCases hot json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-by-name-with-concatenation/bundle.js:830:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  30) TestCases hot json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-with-default/bundle.js:846:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  31) TestCases hot json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/json/import-with-default-with-concatenation/bundle.js:844:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  32) TestCases hot loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/loaders/json-loader/bundle.js:5111:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  33) TestCases hot loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot/loaders/json-loader/bundle.js:5117:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  34) TestCases hot scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/hot/scope-hoisting/json-reexport-6700/bundle.js:819:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  35) TestCases hot-multi-step json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/data/bundle.js:803:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  36) TestCases hot-multi-step json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-by-name/bundle.js:832:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  37) TestCases hot-multi-step json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-by-name-with-concatenation/bundle.js:830:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  38) TestCases hot-multi-step json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-with-default/bundle.js:846:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  39) TestCases hot-multi-step json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/hot-multi-step/chunks/parsing/bundle.js:2674:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/json/import-with-default-with-concatenation/bundle.js:844:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  40) TestCases hot-multi-step loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/loaders/json-loader/bundle.js:5111:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  41) TestCases hot-multi-step loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/hot-multi-step/loaders/json-loader/bundle.js:5117:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  42) TestCases hot-multi-step scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/hot-multi-step/scope-hoisting/json-reexport-6700/bundle.js:819:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  43) TestCases devtool-eval json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/data/index.js?:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  44) TestCases devtool-eval json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  45) TestCases devtool-eval json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  46) TestCases devtool-eval json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  47) TestCases devtool-eval json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  48) TestCases devtool-eval loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  49) TestCases devtool-eval loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  50) TestCases devtool-eval scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack:///./scope-hoisting/json-reexport-6700/index.js?:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  51) TestCases devtool-eval-named-modules json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/data/index.js?:2:82)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  52) TestCases devtool-eval-named-modules json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  53) TestCases devtool-eval-named-modules json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack:///./json/import-by-name/index.js?:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  54) TestCases devtool-eval-named-modules json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  55) TestCases devtool-eval-named-modules json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack:///(webpack)/node_modules/should/cjs/should.js?:335:19)
      at Context.eval (webpack:///./json/import-with-default/index.js?:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  56) TestCases devtool-eval-named-modules loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  57) TestCases devtool-eval-named-modules loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack:///./loaders/json-loader/index.js?:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  58) TestCases devtool-eval-named-modules scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack:///./scope-hoisting/json-reexport-6700/index.js?:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  59) TestCases devtool-eval-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  60) TestCases devtool-eval-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  61) TestCases devtool-eval-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  62) TestCases devtool-eval-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  63) TestCases devtool-eval-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  64) TestCases devtool-eval-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  65) TestCases devtool-eval-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  66) TestCases devtool-eval-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  67) TestCases devtool-inline-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  68) TestCases devtool-inline-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  69) TestCases devtool-inline-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  70) TestCases devtool-inline-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  71) TestCases devtool-inline-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  72) TestCases devtool-inline-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  73) TestCases devtool-inline-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  74) TestCases devtool-inline-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-inline-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  75) TestCases devtool-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  76) TestCases devtool-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  77) TestCases devtool-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  78) TestCases devtool-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  79) TestCases devtool-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  80) TestCases devtool-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  81) TestCases devtool-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  82) TestCases devtool-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  83) TestCases devtool-cheap-inline-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  84) TestCases devtool-cheap-inline-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  85) TestCases devtool-cheap-inline-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  86) TestCases devtool-cheap-inline-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  87) TestCases devtool-cheap-inline-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  88) TestCases devtool-cheap-inline-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  89) TestCases devtool-cheap-inline-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  90) TestCases devtool-cheap-inline-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-cheap-inline-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  91) TestCases devtool-cheap-eval-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  92) TestCases devtool-cheap-eval-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  93) TestCases devtool-cheap-eval-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  94) TestCases devtool-cheap-eval-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  95) TestCases devtool-cheap-eval-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  96) TestCases devtool-cheap-eval-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  97) TestCases devtool-cheap-eval-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  98) TestCases devtool-cheap-eval-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  99) TestCases devtool-cheap-eval-module-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  100) TestCases devtool-cheap-eval-module-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  101) TestCases devtool-cheap-eval-module-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:18:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  102) TestCases devtool-cheap-eval-module-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  103) TestCases devtool-cheap-eval-module-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:21:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  104) TestCases devtool-cheap-eval-module-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  105) TestCases devtool-cheap-eval-module-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  106) TestCases devtool-cheap-eval-module-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///3:6:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  107) TestCases devtool-cheap-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/data/bundle.js:132:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  108) TestCases devtool-cheap-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-by-name/bundle.js:161:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  109) TestCases devtool-cheap-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-by-name-with-concatenation/bundle.js:159:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  110) TestCases devtool-cheap-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-with-default/bundle.js:175:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  111) TestCases devtool-cheap-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/chunks/parsing/bundle.js:2003:19)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/json/import-with-default-with-concatenation/bundle.js:173:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  112) TestCases devtool-cheap-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/loaders/json-loader/bundle.js:4440:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  113) TestCases devtool-cheap-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/loaders/json-loader/bundle.js:4446:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  114) TestCases devtool-cheap-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/devtool-cheap-source-map/scope-hoisting/json-reexport-6700/bundle.js:148:53)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  115) TestCases minimized-source-map json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///4:2:63)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  116) TestCases minimized-source-map json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:19:43)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  117) TestCases minimized-source-map json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.eval (webpack-internal:///5:27:3)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  118) TestCases minimized-source-map json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:22:61)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  119) TestCases minimized-source-map json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at Assertion.value (webpack-internal:///7:335:19)
      at Context.eval (webpack-internal:///6:30:21)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  120) TestCases minimized-source-map loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:5:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  121) TestCases minimized-source-map loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.eval (webpack-internal:///8:11:10)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  122) TestCases minimized-source-map scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (webpack-internal:///2:26:3)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  123) TestCases minimized-hashed-modules json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/data/bundle.js:25:179)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  124) TestCases minimized-hashed-modules json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-by-name/bundle.js:37:356)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  125) TestCases minimized-hashed-modules json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-by-name-with-concatenation/bundle.js:23:304)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  126) TestCases minimized-hashed-modules json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-with-default/bundle.js:19:372)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  127) TestCases minimized-hashed-modules json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/chunks/parsing/bundle.js:55:2772)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/json/import-with-default-with-concatenation/bundle.js:12:299)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  128) TestCases minimized-hashed-modules loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/loaders/json-loader/bundle.js:31:210)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  129) TestCases minimized-hashed-modules loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/loaders/json-loader/bundle.js:31:382)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  130) TestCases minimized-hashed-modules scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/minimized-hashed-modules/scope-hoisting/json-reexport-6700/bundle.js:14:249)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  131) TestCases all-combined json data should require json via require:

      AssertionError: expected Object { data: undefined } to equal Object { data: null } (at data, A has undefined and B has null)
      + expected - actual

       {
      -  "data": [undefined]
      +  "data": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/data/bundle.js:31:193)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  132) TestCases all-combined json import-by-name should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-by-name/bundle.js:37:426)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  133) TestCases all-combined json import-by-name-with-concatenation should be possible to import json data:
     TypeError: Cannot read property 'a' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-by-name-with-concatenation/bundle.js:41:374)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  134) TestCases all-combined json import-with-default should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-with-default/bundle.js:43:456)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  135) TestCases all-combined json import-with-default-with-concatenation should be possible to import json data:

      AssertionError: expected Object { a: undefined } to equal Object { a: null } (at a, A has undefined and B has null)
      + expected - actual

       {
      -  "a": [undefined]
      +  "a": [null]
       }
      
      at g.value (/home/travis/build/webpack/webpack/test/js/all-combined/chunks/parsing/bundle.js:37:3021)
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/json/import-with-default-with-concatenation/bundle.js:48:383)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  136) TestCases all-combined loaders json-loader should be able to load JSON files without loader:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/loaders/json-loader/bundle.js:49:267)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  137) TestCases all-combined loaders json-loader should also work when the json extension is omitted:
     TypeError: Cannot read property 'should' of undefined
      at Context.<anonymous> (/home/travis/build/webpack/webpack/test/js/all-combined/loaders/json-loader/bundle.js:49:466)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  

  138) TestCases all-combined scope-hoisting json-reexport-6700 should reexport json data correctly:
     TypeError: Cannot read property 'should' of undefined
      at Context.it (/home/travis/build/webpack/webpack/test/js/all-combined/scope-hoisting/json-reexport-6700/bundle.js:20:325)
      at callFn (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:348:21)
      at Test.Runnable.run (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runnable.js:340:7)
      at Runner.runTest (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:443:10)
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:549:12
      at /home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:371:7
      at Immediate.<anonymous> (/home/travis/build/webpack/webpack/node_modules/mocha/lib/runner.js:339:5)
      at tryOnImmediate (timers.js:645:5)
      at processImmediate [as _immediateCallback] (timers.js:617:5)
  
```
</details>

See [complete report here](https://travis-ci.org/webpack/webpack/builds/370801896?utm_source&#x3D;github_status&amp;utm_medium&#x3D;notification).
webpack-bot: <!-- identifier: ci-result -->

Thank you for your pull request! The most important CI builds succeeded, we’ll review the pull request soon.
webpack-bot: <!-- identifier: tests-result -->

It looks like this Pull Request doesn't include [enough test cases](https://codecov.io/gh/webpack/webpack/compare/e5ee3be827b991582294bab8ad5de9105744b2bf...2ae26f1f2c4f3c629f9bd7c2e2167b1e818c7bc1) (based on Code Coverage analysis of the PR diff).

A PR need to be covered by tests if you add a new feature (we want to make sure that your feature is working) or if you fix a bug (we want to make sure that we don't run into a regression in future).

@kamranahmedse Please check if this is appliable to your PR and if you can add more test cases.

Read the [test readme](https://github.com/webpack/webpack/blob/master/test/README.md) for details how to write test cases.
webpack-bot: <!-- identifier: review-outdated -->

@kamranahmedse Thanks for your update.

I labeled the Pull Request so reviewers will review it again.

@sokra Please review the new changes.
webpack-bot: <!-- identifier: tests-result -->

It looks like this Pull Request doesn't include [enough test cases](https://codecov.io/gh/webpack/webpack/compare/e5ee3be827b991582294bab8ad5de9105744b2bf...351f7b850890bff9623554a7898e57a0af67cfd5) (based on Code Coverage analysis of the PR diff).

A PR need to be covered by tests if you add a new feature (we want to make sure that your feature is working) or if you fix a bug (we want to make sure that we don't run into a regression in future).

@kamranahmedse Please check if this is appliable to your PR and if you can add more test cases.

Read the [test readme](https://github.com/webpack/webpack/blob/master/test/README.md) for details how to write test cases.
webpack-bot: <!-- identifier: head-master -->

Hi @kamranahmedse.

Just a little hint from a friendly bot about the best practice when submitting pull requests:

> Don't submit pull request from your own `master` branch. It's recommended to create a feature branch for the PR.

*You don't have to change it for this PR, just make sure to follow this hint the next time you submit a PR.*
moitias: A question in the middle if you don't mind; should this really return undefined for invalid JSON? What if the input *actually* is 'undefined' - should that not parse into undefined too? From my POV, the best option would be to throw an error that the user is able to catch, eg;

```
try {
  foo = require('./foo.json');
} catch (e) {
  console.log("error reading json",e);
}
```

If the file is not found, this is also how node require() normally works and webpack currently too it seems, tried it and got a warning on the hot server console and the console.log above in the browser console.

Patch:
diff --git a/lib/JsonGenerator.js b/lib/JsonGenerator.js
index 508ae5ccc..455f09c64 100644
--- a/lib/JsonGenerator.js
+++ b/lib/JsonGenerator.js
@@ -6,11 +6,17 @@
 
 const { ConcatSource } = require("webpack-sources");
 
-const stringifySafe = data =>
-	JSON.stringify(data).replace(
+const stringifySafe = data => {
+	const stringified = JSON.stringify(data);
+	if (!stringified) {
+		return undefined; // Invalid JSON
+	}
+
+	return stringified.replace(
 		/\u2028|\u2029/g,
 		str => (str === "\u2029" ? "\\u2029" : "\\u2028")
 	); // invalid in JavaScript but valid JSON
+};
 
 class JsonGenerator {
 	generate(module, dependencyTemplates, runtimeTemplate) {
diff --git a/lib/Stats.js b/lib/Stats.js
index 1c03775fa..485080fef 100644
--- a/lib/Stats.js
+++ b/lib/Stats.js
@@ -135,10 +135,6 @@ class Stats {
 		const showBuiltAt = optionOrLocalFallback(options.builtAt, true);
 		const showAssets = optionOrLocalFallback(options.assets, true);
 		const showEntrypoints = optionOrLocalFallback(options.entrypoints, true);
-		const showChunkGroups = optionOrLocalFallback(
-			options.chunkGroups,
-			!forToString
-		);
 		const showChunks = optionOrLocalFallback(options.chunks, !forToString);
 		const showChunkModules = optionOrLocalFallback(options.chunkModules, true);
 		const showChunkOrigins = optionOrLocalFallback(
@@ -400,15 +396,15 @@ class Stats {
 			obj.assets.sort(sortByField(sortAssets));
 		}
 
-		const fnChunkGroup = groupMap => {
-			const obj = {};
-			for (const keyValuePair of groupMap) {
+		if (showEntrypoints) {
+			obj.entrypoints = {};
+			for (const keyValuePair of compilation.entrypoints) {
 				const name = keyValuePair[0];
-				const cg = keyValuePair[1];
-				const children = cg.getChildrenByOrders();
-				obj[name] = {
-					chunks: cg.chunks.map(c => c.id),
-					assets: cg.chunks.reduce(
+				const ep = keyValuePair[1];
+				const children = ep.getChildrenByOrders();
+				obj.entrypoints[name] = {
+					chunks: ep.chunks.map(c => c.id),
+					assets: ep.chunks.reduce(
 						(array, c) => array.concat(c.files || []),
 						[]
 					),
@@ -440,19 +436,9 @@ class Stats {
 					}, Object.create(null))
 				};
 				if (showPerformance) {
-					obj[name].isOverSizeLimit = cg.isOverSizeLimit;
+					obj.entrypoints[name].isOverSizeLimit = ep.isOverSizeLimit;
 				}
 			}
-
-			return obj;
-		};
-
-		if (showEntrypoints) {
-			obj.entrypoints = fnChunkGroup(compilation.entrypoints);
-		}
-
-		if (showChunkGroups) {
-			obj.namedChunkGroups = fnChunkGroup(compilation.namedChunkGroups);
 		}
 
 		const fnModule = module => {
@@ -880,23 +866,22 @@ class Stats {
 			colors.normal(obj.filteredAssets !== 1 ? " assets" : " asset");
 			newline();
 		}
-
-		const processChunkGroups = (namedGroups, prefix) => {
-			for (const name of Object.keys(namedGroups)) {
-				const cg = namedGroups[name];
-				colors.normal(`${prefix} `);
+		if (obj.entrypoints) {
+			for (const name of Object.keys(obj.entrypoints)) {
+				const ep = obj.entrypoints[name];
+				colors.normal("Entrypoint ");
 				colors.bold(name);
-				if (cg.isOverSizeLimit) {
+				if (ep.isOverSizeLimit) {
 					colors.normal(" ");
 					colors.yellow("[big]");
 				}
 				colors.normal(" =");
-				for (const asset of cg.assets) {
+				for (const asset of ep.assets) {
 					colors.normal(" ");
 					colors.green(asset);
 				}
-				for (const name of Object.keys(cg.childAssets)) {
-					const assets = cg.childAssets[name];
+				for (const name of Object.keys(ep.childAssets)) {
+					const assets = ep.childAssets[name];
 					if (assets && assets.length > 0) {
 						colors.normal(" ");
 						colors.magenta(`(${name}:`);
@@ -909,25 +894,7 @@ class Stats {
 				}
 				newline();
 			}
-		};
-
-		if (obj.entrypoints) {
-			processChunkGroups(obj.entrypoints, "Entrypoint");
 		}
-
-		if (obj.namedChunkGroups) {
-			let outputChunkGroups = obj.namedChunkGroups;
-			if (obj.entrypoints) {
-				outputChunkGroups = Object.keys(outputChunkGroups)
-					.filter(name => !obj.entrypoints[name])
-					.reduce((result, name) => {
-						result[name] = obj.namedChunkGroups[name];
-						return result;
-					}, {});
-			}
-			processChunkGroups(outputChunkGroups, "Chunk Group");
-		}
-
 		const modulesByIdentifier = {};
 		if (obj.modules) {
 			for (const module of obj.modules) {
@@ -1293,7 +1260,6 @@ class Stats {
 			case "verbose":
 				return {
 					entrypoints: true,
-					chunkGroups: true,
 					modules: false,
 					chunks: true,
 					chunkModules: true,
@@ -1312,7 +1278,6 @@ class Stats {
 			case "detailed":
 				return {
 					entrypoints: true,
-					chunkGroups: true,
 					chunks: true,
 					chunkModules: false,
 					chunkOrigins: true,
diff --git a/schemas/WebpackOptions.json b/schemas/WebpackOptions.json
index 15b17c046..2634ed3ea 100644
--- a/schemas/WebpackOptions.json
+++ b/schemas/WebpackOptions.json
@@ -1853,10 +1853,6 @@
               "type": "boolean",
               "description": "Display the entry points with the corresponding bundles"
             },
-            "chunkGroups": {
-              "type": "boolean",
-              "description": "Display all chunk groups with the corresponding bundles"
-            },
             "errorDetails": {
               "type": "boolean",
               "description": "add details to errors (like resolving log)"


Test patch:
diff --git a/test/Stats.unittest.js b/test/Stats.unittest.js
index f089c421c..563a4e23e 100644
--- a/test/Stats.unittest.js
+++ b/test/Stats.unittest.js
@@ -116,7 +116,6 @@ describe(
 					warnings: [],
 					assets: [],
 					entrypoints: new Map(),
-					namedChunkGroups: new Map(),
 					chunks: [],
 					modules: [],
 					children: [],
@@ -143,7 +142,6 @@ describe(
 					assets: [],
 					entrypoints: new Map(),
 					chunks: [],
-					namedChunkGroups: new Map(),
 					modules: [],
 					children: [],
 					hash: "1234",
@@ -164,7 +162,6 @@ describe(
 					children: [],
 					chunks: [],
 					entrypoints: {},
-					namedChunkGroups: {},
 					filteredAssets: 0,
 					filteredModules: 0,
 					errors: [],
diff --git a/test/statsCases/named-chunk-groups/a.js b/test/statsCases/named-chunk-groups/a.js
deleted file mode 100644
index 699904754..000000000
--- a/test/statsCases/named-chunk-groups/a.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import "./shared";
-
-export default "a";
diff --git a/test/statsCases/named-chunk-groups/b.js b/test/statsCases/named-chunk-groups/b.js
deleted file mode 100644
index a47f90b65..000000000
--- a/test/statsCases/named-chunk-groups/b.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import "./shared";
-
-export default "b";
diff --git a/test/statsCases/named-chunk-groups/c.js b/test/statsCases/named-chunk-groups/c.js
deleted file mode 100644
index 00c4083b2..000000000
--- a/test/statsCases/named-chunk-groups/c.js
+++ /dev/null
@@ -1,4 +0,0 @@
-import "x";
-import "y";
-
-export default "c";
diff --git a/test/statsCases/named-chunk-groups/expected.txt b/test/statsCases/named-chunk-groups/expected.txt
deleted file mode 100644
index c646a096b..000000000
--- a/test/statsCases/named-chunk-groups/expected.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-Child
-    Chunk Group main = main.js
-    Chunk Group async-a = async-a~async-b.js async-a.js
-    Chunk Group async-b = async-a~async-b.js async-b.js
-    Chunk Group async-c = vendors.js async-c.js
-    chunk    {0} async-a~async-b.js (async-a~async-b) 133 bytes <{5}> ={1}= ={2}= [rendered] split chunk (cache group: default) (name: async-a~async-b)
-        > ./a [6] ./index.js 1:0-47
-        > ./b [6] ./index.js 2:0-47
-     [0] ./shared.js 133 bytes {0} [built]
-    chunk    {1} async-a.js (async-a) 40 bytes <{5}> ={0}= [rendered]
-        > ./a [6] ./index.js 1:0-47
-     [3] ./a.js 40 bytes {1} [built]
-    chunk    {2} async-b.js (async-b) 40 bytes <{5}> ={0}= [rendered]
-        > ./b [6] ./index.js 2:0-47
-     [4] ./b.js 40 bytes {2} [built]
-    chunk    {3} async-c.js (async-c) 45 bytes <{5}> ={4}= [rendered]
-        > ./c [6] ./index.js 3:0-47
-     [5] ./c.js 45 bytes {3} [built]
-    chunk    {4} vendors.js (vendors) 40 bytes <{5}> ={3}= [rendered] split chunk (cache group: vendors) (name: vendors)
-        > ./c [6] ./index.js 3:0-47
-     [1] ./node_modules/x.js 20 bytes {4} [built]
-     [2] ./node_modules/y.js 20 bytes {4} [built]
-    chunk    {5} main.js (main) 146 bytes >{0}< >{1}< >{2}< >{3}< >{4}< [entry] [rendered]
-        > ./ main
-     [6] ./index.js 146 bytes {5} [built]
-Child
-    Entrypoint main = main.js
-    Chunk Group async-a = async-a~async-b.js async-a.js
-    Chunk Group async-b = async-a~async-b.js async-b.js
-    Chunk Group async-c = vendors.js async-c.js
-    chunk    {0} async-a~async-b.js (async-a~async-b) 133 bytes <{5}> ={1}= ={2}= [rendered] split chunk (cache group: default) (name: async-a~async-b)
-        > ./a [6] ./index.js 1:0-47
-        > ./b [6] ./index.js 2:0-47
-     [0] ./shared.js 133 bytes {0} [built]
-    chunk    {1} async-a.js (async-a) 40 bytes <{5}> ={0}= [rendered]
-        > ./a [6] ./index.js 1:0-47
-     [3] ./a.js 40 bytes {1} [built]
-    chunk    {2} async-b.js (async-b) 40 bytes <{5}> ={0}= [rendered]
-        > ./b [6] ./index.js 2:0-47
-     [4] ./b.js 40 bytes {2} [built]
-    chunk    {3} async-c.js (async-c) 45 bytes <{5}> ={4}= [rendered]
-        > ./c [6] ./index.js 3:0-47
-     [5] ./c.js 45 bytes {3} [built]
-    chunk    {4} vendors.js (vendors) 40 bytes <{5}> ={3}= [rendered] split chunk (cache group: vendors) (name: vendors)
-        > ./c [6] ./index.js 3:0-47
-     [1] ./node_modules/x.js 20 bytes {4} [built]
-     [2] ./node_modules/y.js 20 bytes {4} [built]
-    chunk    {5} main.js (main) 146 bytes >{0}< >{1}< >{2}< >{3}< >{4}< [entry] [rendered]
-        > ./ main
-     [6] ./index.js 146 bytes {5} [built]
\ No newline at end of file
diff --git a/test/statsCases/named-chunk-groups/index.js b/test/statsCases/named-chunk-groups/index.js
deleted file mode 100644
index e700f4783..000000000
--- a/test/statsCases/named-chunk-groups/index.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import(/* webpackChunkName: "async-a" */ "./a");
-import(/* webpackChunkName: "async-b" */ "./b");
-import(/* webpackChunkName: "async-c" */ "./c");
\ No newline at end of file
diff --git a/test/statsCases/named-chunk-groups/node_modules/x.js b/test/statsCases/named-chunk-groups/node_modules/x.js
deleted file mode 100644
index 3fd5ecc7a..000000000
--- a/test/statsCases/named-chunk-groups/node_modules/x.js
+++ /dev/null
@@ -1,1 +0,0 @@
-export default "x";
diff --git a/test/statsCases/named-chunk-groups/node_modules/y.js b/test/statsCases/named-chunk-groups/node_modules/y.js
deleted file mode 100644
index 413e7c09d..000000000
--- a/test/statsCases/named-chunk-groups/node_modules/y.js
+++ /dev/null
@@ -1,1 +0,0 @@
-export default "y";
diff --git a/test/statsCases/named-chunk-groups/shared.js b/test/statsCases/named-chunk-groups/shared.js
deleted file mode 100644
index f53cf742a..000000000
--- a/test/statsCases/named-chunk-groups/shared.js
+++ /dev/null
@@ -1,2 +0,0 @@
-// content content content content content content content content
-// content content content content content content content content
\ No newline at end of file
diff --git a/test/statsCases/named-chunk-groups/webpack.config.js b/test/statsCases/named-chunk-groups/webpack.config.js
deleted file mode 100644
index 617a63e18..000000000
--- a/test/statsCases/named-chunk-groups/webpack.config.js
+++ /dev/null
@@ -1,47 +0,0 @@
-const stats = {
-	hash: false,
-	timings: false,
-	builtAt: false,
-	assets: false,
-	chunks: true,
-	chunkOrigins: true,
-	modules: false
-};
-
-const config = {
-	mode: "production",
-	entry: {
-		main: "./"
-	},
-	output: {
-		filename: "[name].js"
-	},
-	optimization: {
-		splitChunks: {
-			minSize: 100,
-			cacheGroups: {
-				vendors: {
-					test: /[\\/]node_modules[\\/]/,
-					chunks: "async",
-					enforce: true,
-					name: "vendors"
-				}
-			}
-		}
-	}
-};
-
-module.exports = [
-	Object.assign(
-		{
-			stats: Object.assign({ entrypoints: false, chunkGroups: true }, stats)
-		},
-		config
-	),
-	Object.assign(
-		{
-			stats: Object.assign({ entrypoints: true, chunkGroups: true }, stats)
-		},
-		config
-	)
-];