Package: gocept.exttest
Runs tests provided by an external command from Python’sunittest.TestCase.ContentsUsageRequirementsExample: JavaScriptDevelopmentChangelogUsagegocept.exttest provides one public function,makeSuite, which returns aunittest.TestSuiteand takes a single argument: the name of the external
binary to run. (Any additional arguments will be passed to the external command
as command-line parameters.)Here’s a simple example:import gocept.exttest
def test_suite():
    return gocept.exttest.makeSuite(
        'bin/external_test_runner', '--some-arg', '--another-arg')makeSuitecalls the external command to ask for a list of test cases and
test functions (see below for the exact protocol), and returns aTestSuiteofTestCaseobjects that contain corresponding test methods. Each test
method will call the external command to run its test, and converts the results
returned by the external command to the conventions of theunittestmodule
(e.g. raisesAssertionErrorfor failed tests, etc.).RequirementsThe external command needs to understand two command line parameters:--listand--run<test-specification>:--listmust return a list of available test cases and test functions
formatted as JSON:$ bin/external_test_runner --list
[{"case": "MyExternalTestCase",
  "tests": ["test_one", "test_two"]}--runis used to run one specific test, returning the results formatted as
JSON:$ bin/external_test_runner --run MyExternalTestCase.test_two
[{"name": "MyExternalTestCase.test_two",
  "status": "FAIL",
  "message": "Test failed.",
  "traceback": "..."}]NOTE: The custom JSON format for test results was chosen for simplicity when
integrating with JavaScript (see below); we’ll have to evaluate whether the
commonly used XML format fromJUnitReportcould be used instead.If neither--listnor--runis given, the external command should run
all tests:$ bin/external_test_runner
[{"name": "MyExternalTestCase.test_one",
  "status": "SUCCESS",
  "message": "Test passed."},
 {"name": "MyExternalTestCase.test_two",
  "status": "FAIL",
  "message": "Test failed.",
  "traceback": "..."}]Example: JavaScriptRunning testsWe built gocept.exttest to integrate javascript unittests with python
unittests. We’ve decided to useJasmineas the javascript unittest
framework, running under node.js viajasmine-node. (In order to use jasmine
with gocept.exttest, we extended jasmine-node to support the--list/-runarguments and the JSON output format.)In your buildout environment, install node.js and jasmine-node like this:[buildout]
parts =
   nodejs
   test

[nodejs]
recipe = gp.recipe.node
npms = ${buildout:directory}/../jasmine-node
scripts = jasmine-node

[test]
recipe = zc.recipe.testrunner
eggs = your.package
environment = env

[env]
jasmine-bin = ${buildout:directory}/bin/jasmine-nodeYou need to checkout the jasmine-node fork fromhttps://github.com/wosc/jasmine-nodeuntil the changes are merged upstream. (In
the example,${buildout:directory}/../jasmine-nodeis used for its
location.)Writing testsFor example, let’s say the javascript tests should reside inyour.package.tests.jasmine-nodesupports tests written in both
JavaScript and CoffeeScript (by specifying the--coffeecommand-line
parameter), and requires test files to have_specin their name.An example test might look like this (please refer to theJasmine
documentationfor details)require 'my_app.js'

describe 'MyApp', ->
 it 'has read Douglas Adams', ->
   expect(new MyApp().calculate_the_answer()).toEqual(42)Then wire up the tests as follows (the path to the external command is passed
to the tests via an environment variable):import gocept.exttest
def test_suite():
   return gocept.exttest.makeSuite(
       os.environ.get('jasmine-bin'),
       '--coffee',
       '--json',
       pkg_resources.resource_filename('your.package', 'tests'))DevelopmentThe source code is available in the mercurial repository athttps://code.gocept.com/hg/public/gocept.exttestPlease report any bugs you find athttps://projects.gocept.com/projects/gocept-exttest/issuesChangelog1.1 (unreleased)Nothing changed yet.1.0 (2012-01-24)Reworked documentation.0.1.4 (2012-01-20)Package description.0.1.3 (2012-01-20)Improved the docs.0.1.2 (2012-01-19)Repair broken release (again).0.1.1 (2012-01-19)Repair broken release (0.1).0.1 (2012-01-19)first release.