Repository: ViacomInc/data-point (js)
Issue: should be able to fully override request.param.inspect
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**Problem description**:

Wehn attempting to override request.params.inspect with a function the inspect works but it outputs other information aside from the custom function. 

**Suggested solution**:

When inspect is overridden it should pass the necessary information to print:
- entityId
- options
- acc

and the output should be 100% delegated to this method

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**What happened**:

Code below was expected to only print out 'hello':

```js
'request:foo': {
  url: 'http://some.url.com',
  params: {
    inspect: (acc) => {
       console.log('hello')
    }
  }
}
```

But it printed: 

```bash
inspect: request:foo
options: {
  "method": "GET",
  "json": true,
  "url": "http://some.url.com"
}
value: {}

custom:
hello
```

**Reproduction**: 

```js
const dp = require('data-point').create({
  entities: {
    'request:getVehicle': {
      url: 'https://swapi.co/api/vehicles/14/',
      params: {
        inspect: (acc) => {
          console.log('hello')
        }
      }
    }
  }
})

dp.resolve('request:getVehicle', {})
```
<!--If you have a link or example that reproduces your issue please include it. A reproduction with as little code as possible is better.-->

**Environment**:

- `data-point` version: 3.1.0
- `node` version: 8
- `npm` version: N/A

Pull request description: fix(data-point): fix request.params.inspect
inspect was adding extra logging, this offloads the entire behaviour to the custom function

closes #263

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<!-- What changes are being made? (What feature/bug is being fixed here?) -->
**What**:
 
fixes #263 

<!-- How were these changes implemented? -->
**How**:

offloading any inspect functionality to the custom inspect function

<!-- Have you done all of these things?  -->
**Checklist**:
<!-- add "N/A" to the end of each line that's irrelevant to your changes -->
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- [ ] Has Breaking changes
- [ ] Documentation
- [X] Tests
- [X] Ready to be merged <!-- In your opinion, is this ready to be merged as soon as it's reviewed? -->
- [ ] Added username to **all-contributors** list

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Patch:
diff --git a/packages/data-point/lib/entity-types/entity-request/resolve.js b/packages/data-point/lib/entity-types/entity-request/resolve.js
index 9939159..5714c70 100644
--- a/packages/data-point/lib/entity-types/entity-request/resolve.js
+++ b/packages/data-point/lib/entity-types/entity-request/resolve.js
@@ -85,12 +85,22 @@ module.exports.resolveUrl = resolveUrl
  * @param {Accumulator} acc
  */
 function inspect (acc) {
-  if (acc.params && acc.params.inspect) {
+  const paramInspect = acc.params && acc.params.inspect
+
+  if (typeof paramInspect === 'function') {
+    paramInspect(acc)
+    return true
+  }
+
+  if (paramInspect === true) {
     utils.inspect(acc, {
       options: acc.options,
       value: acc.value
     })
+    return true
   }
+
+  return false
 }
 
 module.exports.inspect = inspect
diff --git a/packages/data-point/lib/utils/index.js b/packages/data-point/lib/utils/index.js
index 2bfa176..871a58f 100644
--- a/packages/data-point/lib/utils/index.js
+++ b/packages/data-point/lib/utils/index.js
@@ -59,11 +59,6 @@ function inspect (acc, data) {
   }
 
   console.info.apply(null, log)
-
-  if (typeof acc.params.inspect === 'function') {
-    console.info('\ncustom:')
-    _.attempt(acc.params.inspect, acc)
-  }
 }
 
 module.exports.inspect = inspect


Test patch:
diff --git a/packages/data-point/lib/entity-types/entity-request/resolve.test.js b/packages/data-point/lib/entity-types/entity-request/resolve.test.js
index cf4e5a9..fb48840 100644
--- a/packages/data-point/lib/entity-types/entity-request/resolve.test.js
+++ b/packages/data-point/lib/entity-types/entity-request/resolve.test.js
@@ -12,6 +12,7 @@ const ResolveEntity = require('../base-entity/resolve')
 const FixtureStore = require('../../../test/utils/fixture-store')
 
 const helpers = require('../../helpers')
+const utils = require('../../utils')
 
 let dataPoint
 let resolveReducerBound
@@ -274,24 +275,41 @@ describe('inspect', () => {
   afterEach(() => {
     console.info = consoleInfo
   })
-  test('It should not execute utils.inspect', () => {
-    console.info = jest.fn()
+  test('It should not execute custom inspect or utils.inspect', () => {
+    const utilsIinspectSpy = jest.spyOn(utils, 'inspect')
     const acc = getAcc()
     acc.params.inspect = undefined
+
     Resolve.inspect(acc)
-    expect(console.info).not.toBeCalled()
+    expect(utilsIinspectSpy).not.toBeCalled()
+
+    utilsIinspectSpy.mockReset()
+    utilsIinspectSpy.mockRestore()
   })
-  test('It should not execute utils.inspect', () => {
-    console.info = jest.fn()
-    Resolve.inspect(getAcc())
-    expect(console.info.mock.calls[0]).toContain('test:test')
+  test('It should execute custom inspect when provided, not execute utils.inspect', () => {
+    const utilsIinspectSpy = jest.spyOn(utils, 'inspect')
+    const acc = getAcc()
+    acc.params.inspect = jest.fn()
+
+    Resolve.inspect(acc)
+    expect(utilsIinspectSpy).not.toBeCalled()
+    expect(acc.params.inspect).toBeCalledWith(acc)
+
+    utilsIinspectSpy.mockReset()
+    utilsIinspectSpy.mockRestore()
   })
-  test('It should output options', () => {
-    console.info = jest.fn()
+  test('It should execute utils.inspect when params.inspect === true', () => {
+    const utilsIinspectSpy = jest
+      .spyOn(utils, 'inspect')
+      .mockImplementation(() => true)
     const acc = getAcc()
-    _.set(acc, 'options', { options: 1 })
+    acc.params.inspect = true
+
     Resolve.inspect(acc)
-    expect(console.info.mock.calls[0]).toContain('\noptions:')
+    expect(utilsIinspectSpy).toBeCalled()
+
+    utilsIinspectSpy.mockReset()
+    utilsIinspectSpy.mockRestore()
   })
 })
 
diff --git a/packages/data-point/lib/utils/utils.test.js b/packages/data-point/lib/utils/utils.test.js
index 43a1a1a..0c2d798 100644
--- a/packages/data-point/lib/utils/utils.test.js
+++ b/packages/data-point/lib/utils/utils.test.js
@@ -90,14 +90,6 @@ describe('inspect', () => {
     expect(console.info.mock.calls[0]).toContain('\nfoo:')
     expect(console.info.mock.calls[0]).toContain('"bar"')
   })
-  test('It should execute custom inspect if function', () => {
-    console.info = jest.fn()
-    const acc = getAcc()
-    acc.params.inspect = () => console.info('baz')
-    utils.inspect(acc)
-    expect(console.info.mock.calls[1]).toContain('\ncustom:')
-    expect(console.info.mock.calls[2]).toContain('baz')
-  })
 })
 
 describe('inspectProperties', () => {