Commit Graph

65 Commits

Author SHA1 Message Date
Peter van der Zee f8d6b97140 BREAKING CHANGE: UPGRADE REACT NATIVE TO BABEL 7!
Summary:
BREAKING CHANGE
This change upgrades the React Native build pipeline from Babel 6 to Babel 7

If you use a `.babelrc` then you'll need to update it to Babel 7 (note that some plugins are no longer relevant, some plugins are automatically upgraded, and some will need some manual love).

Note that you may also need to upgrade your dev env, tests etc, to make sure they work with Babel 7.

Reviewed By: mjesun

Differential Revision: D7591303

fbshipit-source-id: 29cef21f6466633a9c366d1f3c0d3cf874c714db
2018-04-11 16:47:18 -07:00
Matt Mahoney c9a6b8560f Revert D7097279: BREAKING CHANGE: UPGRADE REACT NATIVE TO BABEL 7!
Differential Revision:
D7097279

Original commit changeset: 9fb204cae733

fbshipit-source-id: bbbb20b5dbed5dc01ae5557686a07d987b9a6cc6
2018-04-11 08:25:17 -07:00
Peter van der Zee ebd12fa09f BREAKING CHANGE: UPGRADE REACT NATIVE TO BABEL 7!
Summary:
BREAKING CHANGE
This change upgrades the React Native build pipeline from Babel 6 to Babel 7

If you use a `.babelrc` then you'll need to update it to Babel 7 (note that some plugins are no longer relevant, some plugins are automatically upgraded, and some will need some manual love).

Note that you may also need to upgrade your dev env, tests etc, to make sure they work with Babel 7.

Reviewed By: cpojer

Differential Revision: D7097279

fbshipit-source-id: 9fb204cae733174a1c155669b7c17ddb70f7aecc
2018-04-10 21:02:43 -07:00
Sebastian Markbage a8e3c7f578 Yolo Delete ReactNativePropRegistry
Summary:
Changed StyleSheet.create to be the identity function. We no longer hide it behind an opaque number. Better for types and perf since we don't use it.

I don't really know if we have/need any safer way of rolling this out than just landing it.

It can break if the object passed to StyleSheet.create is mutated afterwards but that isn't a practice anywhere I've seen.

Reviewed By: sophiebits

Differential Revision: D7530023

fbshipit-source-id: bc1afa879c5a5d9cd95cb13bc8ff3347b3622851
2018-04-09 18:46:11 -07:00
Matt Oakes 43014eaf19 Fix #18279: Add 'addNetworkingHandler' to jest mock setup
Summary:
Fixes #18279 by adding the correct methods to the jest mocks setup file.

Test by no longer including the workarounds in [issue comments](https://github.com/facebook/react-native/issues/18279#issuecomment-374177940). A [comment from hramos](https://github.com/facebook/react-native/issues/18279#issuecomment-371914037) mentioned improving the test coverage as well, but I wasn't certain how to achieve that.

[GENERAL] [BUGFIX] [BlobManager] - Fixed the jest mocks to avoid breaking tests
Closes https://github.com/facebook/react-native/pull/18718

Differential Revision: D7542458

Pulled By: hramos

fbshipit-source-id: 77c9c7cae77971d62e878c4832b2e1d205131e8f
2018-04-09 11:33:24 -07:00
Eli White 3e9a371ace Mock ReactNative.NativeComponent native methods in jest
Reviewed By: yungsters

Differential Revision: D7218964

fbshipit-source-id: f4b25a533b7e150c978863ff8411dc80937a4fed
2018-03-09 13:43:30 -08:00
Maxime Thirouin 59c7b2cfac Add missing mock for AppState (removeEventListener)
Summary:
I am testing with Jest a component that use [AppState.removeEventListener](https://facebook.github.io/react-native/docs/appstate.html#removeeventlistener) and I am currently facing a fatal error saying that `AppState.removeEventListener` is `undefined`.

Create a component that uses `AppState`, e.g.

```jsx
import React, { Component } from 'react';
import { AppState } from 'react-native';

class TestComponent extends Component {
  componentDidMount() {
    AppState.addEventListener('change', this.stateChangeListener);
  }
  componentWillUnmount() {
    AppState.removeEventListener('change', this.stateChangeListener);
  }
}
```

It should pass test using Jest (snapshots)

It's the continuation of #11199. This PR finish the mock for the native module `AppState`.

[ GENERAL  ]   [ BUGFIX      ]   [AppState] Add missing mock for Jest for `removeEventListener` method.
Closes https://github.com/facebook/react-native/pull/17908

Differential Revision: D7083144

Pulled By: shergin

fbshipit-source-id: eafa07f064f971c3d657f2ffc9c00766c0925bac
2018-02-25 22:18:30 -08:00
Jean Lauliac 4454fdc219 fix Flow typing for OSS
Summary:
Add ignores for these requires, some of them mistakenly removed by da3424c929.

```
yarn flow
```

CircleCI should be green again.
Closes https://github.com/facebook/react-native/pull/18021

Differential Revision: D7025304

Pulled By: jeanlauliac

fbshipit-source-id: 731232093ae3ab39b3eff6fb2004ff4e7090d5ae
2018-02-19 10:41:33 -08:00
Caleb Meredith da3424c929 @allow-large-files Upgrade xplat/js to Flow v0.66
Reviewed By: gabelevi

Differential Revision: D7016717

fbshipit-source-id: 2bd2fd67074ba5d405ecd63a1aeb37354f8634c9
2018-02-16 20:24:57 -08:00
Sophie Alpert 1490ab12ef Update license headers for MIT license
Summary:
Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs.

find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$
replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree.

Reviewed By: TheSavior, yungsters

Differential Revision: D7007050

fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
2018-02-16 18:31:53 -08:00
Andres Suarez 59401f89c1 Fold .eslintrc's into the root eslintrc
Reviewed By: TheSavior

Differential Revision: D6997050

fbshipit-source-id: 81e45d24343cca8336adb0de43bd766899ff03b6
2018-02-15 07:53:52 -08:00
James Ide af6450c660 Add back support for the assetPlugin option
Summary:
**Summary**
Metro used to have support for "asset plugins", which allowed developers to specify arbitrary JS modules that could export a function for adding more fields to asset data objects. Some of this functionality was removed in the delta bundler work -- this PR adds it back.

**Test plan**
Made existing unit tests pass and added unit tests to test asset plugin behavior. Also tested E2E in a React Native project by adding `assetPlugin=/path/to/pluginModule` to a JS bundle URL and ensuring that the plugin ran.
Closes https://github.com/facebook/metro/pull/118

Differential Revision: D6711094

Pulled By: rafeca

fbshipit-source-id: f42c54cfd11bac5103194f85083084eef25fa3cd
2018-01-12 05:52:16 -08:00
uk-ar 11a2a35c63 Fix Jest mocks for Dimensions module
Summary:
Jest mock for Dimensions.get("screen") is missing. Tests fail with error message:

    Invariant Violation: No dimension set for key screen

Run test with usage of Dimensions.get("screen")

[GENERAL] [BUGFIX] [jest/setup.js] - Fix Jest mocks for Dimensions module
Closes https://github.com/facebook/react-native/pull/17017

Differential Revision: D6471719

Pulled By: TheSavior

fbshipit-source-id: de27b2819d088fefe20dfca94ab5672fdec5f0e1
2017-12-03 16:48:17 -08:00
Christoph Nakazawa 654fed46f4 Rename metro-bundler to metro
Reviewed By: davidaurelio

Differential Revision: D6413420

fbshipit-source-id: f13184b8157de2c3aeaa7f2647becc175f62cdbb
2017-11-29 03:35:29 -08:00
Rafael Oleza d5b59517c2 Simplify transform options + pass minify to the transformer
Reviewed By: mjesun

Differential Revision: D6406614

fbshipit-source-id: 722e8e209c7b7c922139f0777b9b3bd2a77bf735
2017-11-24 13:07:24 -08:00
Rafael Oleza 2ae255a6ea Update jest preprocessors to use the ast from the transformers
Reviewed By: jeanlauliac

Differential Revision: D6390677

fbshipit-source-id: e023fc32188c2d601b35d7a2e3f0f6f8af067962
2017-11-22 13:41:57 -08:00
Tim Wang 7fb3a9229d Fix Jest mocks for NetInfo module.
Summary:
Jest mock for `NetInfo.getConnectionInfo()` is missing. Tests are fail with error message:
```
TypeError: _reactNative.NetInfo.getConnectionInfo is not a function
```
And cleaned code in this files for unified code styles.

Run test with usage of `NetInfo.getConnectionInfo()`

[GENERAL] [BUGFIX] [jest/setup.js] - Fix Jest mocks for NetInfo module
Closes https://github.com/facebook/react-native/pull/16722

Differential Revision: D6298133

Pulled By: hramos

fbshipit-source-id: 589cf6fed93965e7a09823015f2793f5c68a9c3b
2017-11-10 10:12:30 -08:00
Maksym Rusynyk 3088096684 Return request id in jest mock for requestAnimationFrame
Summary:
`Jest` allows to use fake timers and according to https://developer.mozilla.org/en-US/docs/Web/API/Window/requestAnimationFrame the return value should be `A long integer value, the request id, that uniquely identifies the entry in the callback list`. This allows to use `cancelAnimationFrame`.

In current implementation of `jest/setup.js`, the return value is undefined. Therefore it's not possible to cancel the animation frame request.

```
let id = null;
const registerCallback = (callback) => {
  clearCallback();
  id = requestAnimationFrame(() => {
    id = null;
    callback();
  });
};
const clearCallback = () => {
  if (null !== id) {
    cancelAnimationFrame(id);
    id = null;
  }
};
```

```
jest.useFakeTimers();

const callback = jest.fn();
registerCallback(callback);
clearCallback();

jest.runAllTimers();
expect(callback).toHaveBeenCalledTimes(0); // Will be error in current implementation, since nothing is cleared. And test will pass, after MR is merged
```

This is fake example, but the real usage is when the animation frame request should be removed on `ComponentWillUnmount`.

 [JEST] [BUGFIX] [requestAnimationFrame] - return request id
Closes https://github.com/facebook/react-native/pull/16367

Differential Revision: D6060578

Pulled By: ericnakagawa

fbshipit-source-id: c785a3380f5e267b48ae16fcf34dbbf95fa54178
2017-10-14 14:03:16 -07:00
Julien Moutte bbceb48dbb Direct assignment of the ref to avoid warning when mocking.
Summary:
When Jest is mocking native components that are assigned a ref with an arrow function, a warning is generated about stateless components which can not have a ref. This does not happen when the ref is assigned directly.

Fixes #16045.
<!--
Thank you for sending the PR! We appreciate you spending the time to work on these changes.

Help us understand your motivation by explaining why you decided to make this change.

You can learn more about contributing to React Native here: http://facebook.github.io/react-native/docs/contributing.html

Happy contributing!

-->

The test provided in the related issue is used to validate the fix. I don't know how to detect console warnings in a Jest test.
Closes https://github.com/facebook/react-native/pull/16046

Differential Revision: D6017903

Pulled By: ericnakagawa

fbshipit-source-id: a7ed61c39f141a4094f08fc875289a7a79ebe9e8
2017-10-09 21:46:20 -07:00
Janic Duplessis 1af645b2fd Validate that JS and Native code versions match for RN releases
Summary:
Basic implementation of the proposal in #15271

Note that this should not affect facebook internally since they are not using OSS releases.

Points to consider:
- How strict should the version match be, right now I just match exact versions.
- Wasn't able to use haste for ReactNativeVersion because I was getting duplicate module provider caused by the template file in scripts/versiontemplates. I tried adding the scripts folder to modulePathIgnorePatterns in package.json but that didn't help.
- Redscreen vs. warning, I think warning is useless because if the app crashes you won't have time to see the warning.
- Should the check and native modules be __DEV__ only?

**Test plan**
Tested that it works when version match and that it redscreens when versions don't before getting other errors on Android and iOS.
Closes https://github.com/facebook/react-native/pull/15518

Differential Revision: D5813551

Pulled By: hramos

fbshipit-source-id: 901757e25724b0f22bf39de172b56309d0dd5a95
2017-09-27 18:31:15 -07:00
Miguel Jimenez Esun 33bbfb7125 Fix test for RN asset
Reviewed By: cpojer, rafeca

Differential Revision: D5777553

fbshipit-source-id: 3bc8559076435c6254972552095967b88acb0576
2017-09-07 01:55:56 -07:00
Tim Wang 165f876730 Add BlobModule native module mock to jest setup
Summary:
React Native v0.48.0 shipped `WebSocketModule` support with `BlobModule` as dependency. But `BlobModule` is not mocked in jest which will cause render tests failed.

Reference implantation: [BlobModule.java](ed903099b4/ReactAndroid/src/main/java/com/facebook/react/modules/blob/BlobModule.java)

Related PR: #11417
Related issue: #15810

Passed CI tests.
Need render a component in jest with WebSocketModule as dependency.
Closes https://github.com/facebook/react-native/pull/15843

Differential Revision: D5783263

Pulled By: shergin

fbshipit-source-id: 2386692f4a644796da2fd66b3135da9f5911663e
2017-09-06 23:51:57 -07:00
Marshall Roch 91b6b4efb9 @allow-large-files Flow v0.54.0
Reviewed By: leebyron

Differential Revision: D5773490

fbshipit-source-id: 2c54bb6326f23edbe9a969f3010f79da8189923e
2017-09-06 03:33:43 -07:00
Martin Yrjölä 25639176ff Asset basenames in Jest snapshots
Summary:
This change only affects tests run with Jest. `require('/images/image1.png')` will be replaced with

```
Object {
  "testUri": "relative/path/to/images/image1.png",
}
```

in the Jest snapshot instead of always being 1 returned by RelativeImageStub. This change makes it possible to test conditional asset loading in components.

The problem with this change is that it will probably break a lot of existing snapshots, but that should be easily fixed when a project updates to a new version of React Native by running `jest -u` to update all snapshots.

A component can have conditional asset loading based on its props, this logic would be nice to test with Jest snapshots. This problem has been discussed in https://github.com/facebook/jest/issues/2838.

* **Who does this affect**: Everyone using `Image` in Jest snapshots
* **How to migrate**: Running `jest -u` will update the snapshots, the snapshots should be reviewed that they are correct.
* **Why make this breaking change**: It enables testing of conditional asset loading.
* **Severity (number of people affected x effort)**: Low.
Closes https://github.com/facebook/react-native/pull/13319

Reviewed By: rafeca

Differential Revision: D5708180

Pulled By: mjesun

fbshipit-source-id: 16ac42004d597db08545a21d4fffe95c5ee7e21f
2017-09-06 03:33:43 -07:00
Eli White 36f2d18b10 Disallow trailing commas in react-native-github
Reviewed By: cpojer

Differential Revision: D5645043

fbshipit-source-id: 7378cc96ce39d3d18da7fba51d48db84cfdfa08f
2017-08-17 16:20:04 -07:00
Brian Vaughn 046f600cc2 React 16 beta 5 sync (5495e49...c3718c4)
Reviewed By: spicyj

Differential Revision: D5564030

fbshipit-source-id: fd3e6133df7ee8e7488a3c515ce6c783c11d9401
2017-08-09 12:35:30 -07:00
Alex Dvornikov 70edc2fd80 Upgrade metro-bundler to v0.10.0
Reviewed By: davidaurelio

Differential Revision: D5469746

fbshipit-source-id: 1d2c0f6c5bb9761cfc54b6c9fdbb1a9f20f535ea
2017-07-21 09:40:15 -07:00
Eli White aafccdf622 Revert D5409825: [RN] Convert easy files to Prettier
Differential Revision: D5409825

fbshipit-source-id: f797a40b58bc6bcc6ae53ed820a10ab49d3f10f5
2017-07-12 19:23:58 -07:00
Eli White c198911561 Convert easy files to Prettier
Reviewed By: zertosh

Differential Revision: D5409825

fbshipit-source-id: 81f67be174cc8ecfcd0955dfec83955ebdc84622
2017-07-12 16:08:22 -07:00
Eli White fc86f25f9a Run eslint on all js files
Reviewed By: zertosh

Differential Revision: D5405047

fbshipit-source-id: 5ade9d8beb3688d8bb08a208709c0dbf1ec671b2
2017-07-12 14:09:53 -07:00
Hank Brekke 0797dae500 Jest Mocks for NetInfo and Linking
Summary:
This isn't exhaustive, but it's a few more functions that these modules normally export which need to be stubbed.
Closes https://github.com/facebook/react-native/pull/14432

Differential Revision: D5345928

Pulled By: shergin

fbshipit-source-id: f333056ac43ce7c75c6734bca8dc9035745721df
2017-06-29 01:00:39 -07:00
David Aurelio 1faf40b02a Upgrade metro-bundler to v0.9.0
Summary: Upgrade metro-bundler to v0.9.0. This version has no functional change. The only change is that the structure of the npm package reflects the structure of the source code.

Reviewed By: bestander

Differential Revision: D5315651

fbshipit-source-id: 3a69337106d4ccf708823c80d304941973360e8e
2017-06-24 17:15:55 -07:00
David Aurelio 5c57601769 Remove `retainLines` and `sourceMaps` options
Summary:
`retainLines` is no longer necessary with the much improved source map generation.
`sourceMaps` is handled by the transformer itself.

Reviewed By: cpojer

Differential Revision: D5237103

fbshipit-source-id: e5c6bf5aa9d553fce9c3f4d59b3ea0057d45cfdc
2017-06-14 09:32:37 -07:00
Christoph Pojer 236e9e4d01 Remove react-native/packager folder.
Summary: This folder is not necessary any longer. All the code now lives in https://github.com/facebook/metro-bundler

Reviewed By: davidaurelio, jeanlauliac

Differential Revision: D5199196

fbshipit-source-id: 35bf0f10a9163f53426db9a76f8f853dceb69167
2017-06-07 07:30:32 -07:00
Jean Lauliac 328d8ddb47 metro-bundler: make internal tool to use the new source of thruth for packager/metro-bundler
Reviewed By: davidaurelio

Differential Revision: D5182904

fbshipit-source-id: df5de3a9eb85560a09789d0a94eccb5c48ecba7b
2017-06-06 05:15:51 -07:00
Kyle Pinkham 7c2ef3281f Fixed ImageLoader Mock for Android
Summary:
When trying to mock an Image on Android, this error occurs referencing the ImageLoader mock in setup.js:
```
/Users/.../node_modules/react-native/jest/setup.js:120
return success(320,240);
       ^

TypeError: success is not a function
    at /Users/.../node_modules/react-native/jest/setup.js:120:8
    at _combinedTickCallback (internal/process/next_tick.js:73:7)
    at process._tickCallback (internal/process/next_tick.js:104:9)
```
- Mocking Images works for iOS but not Android.
- Since Image.android.js uses ImageLoader vs ImageViewManager, the code cannot be carried over from iOS.

Since this is code within the testing framework, the existing tests should test this. If there is no existing test coverage, then this would need to be done.
Closes https://github.com/facebook/react-native/pull/14262

Differential Revision: D5162640

Pulled By: shergin

fbshipit-source-id: 5b1efbbb685b767e09b5c7fb05f073445c94a3aa
2017-05-31 23:49:35 -07:00
Christoph Pojer 57bb955ba1 Move remaining Metro Bundler files around.
Reviewed By: jeanlauliac

Differential Revision: D5154653

fbshipit-source-id: 482bf9829263d5d8f3d0b951ee58e2020236cc2c
2017-05-31 11:17:41 -07:00
Eli White dc339f77f3 Adding mocks for missing native modules
Reviewed By: fkgozali

Differential Revision: D5052517

fbshipit-source-id: 649e0f01c3d8534b898690f9140d5fc610676041
2017-05-15 15:45:26 -07:00
David Aurelio 2fbe3b799e Pass local paths to transformers
Summary:
Pass `localPath` to transformers to allow usage of plugins like `transform-react-jsx-source` that don’t conflict with x-machine caches, e.g. Buck or our own global cache.
These caches don’t work properly if paths local to a specific machine are part of cached outputs.

Reviewed By: jeanlauliac

Differential Revision: D5044147

fbshipit-source-id: 1177afb48d6dd9351738fcd4da8f9f6357e25e81
2017-05-11 16:47:43 -07:00
David Aurelio 58337c9032 BREAKING: Pass parameters to `transformer.transform` as object
Reviewed By: jeanlauliac

Differential Revision: D5037155

fbshipit-source-id: fbd18bd62254d7e1522f659ea62055e66748a951
2017-05-11 08:35:07 -07:00
ZauberNerd 31a0b8788f Add jest mock for 'PushNotificationManager'
Summary:
`PushNotificationIOS` is a library that makes use of the
`PushNotificationManager` native module.
This commit adds a jest mock for its native module so that code that
uses `PushNotificationIOS` can be tested using jest.

In order to enable behaviour in unit tests it is possible to replace or
overwrite the mock implementation, see the [jest guide on
mocks](https://facebook.github.io/jest/docs/mock-functions.html).
By doing something similar to:
```javascript
import { NativeModules } from 'react-native';
const { PushNotificationManager } = NativeModules;
// mock 'checkPermissions' to return a different value than the default:
PushNotificationManager.checkPermissions.mockImplementationOnce((callback) => {
    // execute callback in next tick to enable async behaviour
    process.nextTick(() => callback({
        alert: false,
        badge: false,
        sound: false
    }));
});
// execute unit tests for code that makes use of 'PushNotificationIOS'
```
Closes https://github.com/facebook/react-native/pull/13410

Differential Revision: D5043904

Pulled By: cpojer

fbshipit-source-id: 11e73cd215ba6854d06f4ac7a5aea0ab4be26584
2017-05-11 03:50:52 -07:00
David Aurelio 73fc439bc0 Stronger typing for transformers
Reviewed By: jeanlauliac

Differential Revision: D5006679

fbshipit-source-id: 795c60db363fb53bc74697e4befe50995e9b97a7
2017-05-09 08:02:36 -07:00
Emily Janzer 8ae4c3fcfd Add request/cancelAnimationFrame to jest setup
Reviewed By: cpojer

Differential Revision: D5005587

fbshipit-source-id: 653c281df9025a75ed8eecd22a2e64eaf188bf3e
2017-05-04 17:35:06 -07:00
Emmanouil Konstantinidis 5121434262 Mock Linking - openURL & canOpenURL
Summary:
This PR brings 2 basic mocks for `Linking`'s `openURL` & `canOpenURL` methods. Below you can find 2 examples on how to it works.

```javascript

  it('presses the open website button', () => {
    const wrapper = shallow(<Info />);

    expect(wrapper).toBeDefined();

    wrapper.find('TouchableOpacity').simulate('press');

    expect(Linking.openURL).toHaveBeenCalledTimes(1);
    expect(Linking.openURL).toHaveBeenCalledWith('https://www.hello.world/');
  });

  it('presses the call button', () => {
    const wrapper = shallow(<MoreInfo />);

    expect(wrapper).toBeDefined();

    wrapper.find('TouchableOpacity').simulate('press');

    expect(Linking.canOpenURL).toHaveBeenCalledTimes(1);
    expect(Linking.canOpenURL).toHaveBeenCalledWith('tel:01273123123');
  });
````
Closes https://github.com/facebook/react-native/pull/12839

Differential Revision: D4908903

Pulled By: javache

fbshipit-source-id: 0b62e9c2a7f920dc8bf0a49c1973f65c473eb653
2017-04-19 04:20:12 -07:00
William Durand 6a1e0516e9 Add Geolocation API Jest mock
Summary:
Hello!

The [Geolocation API](https://facebook.github.io/react-native/docs/geolocation.html) is currently not mocked in Jest, which often leads to an `Invariant Violation: Native module cannot be null` error. This patch adds a basic Jest configuration similar to the existing ones for the other modules.

None unfortunately, but this patch makes my test suite all green 😉

Thanks,
William
Closes https://github.com/facebook/react-native/pull/13442

Differential Revision: D4883830

Pulled By: javache

fbshipit-source-id: c2a976834cca7537bd832a698e8cd25cf877705b
2017-04-13 09:35:22 -07:00
ZauberNerd 469acbaa9d fix mock for AsyncLocalStorage
Summary:
The current mock of `AsyncLocalStorage` seems to mock parts of the
`AsyncStorage` API that can't be found on the `AsyncLocalStorage`
object itself and therefore it doesn't work as expected.

What it should do is mock the API of `AsyncLocalStorage` which is a
`NativeModule` so that the `AsyncStorage` module can be used in tests
and it will require the mocked methods.

In order to enable behaviour in unit tests it is possible to replace or
overwrite the mock implementation, see the [jest guide on mocks](https://facebook.github.io/jest/docs/mock-functions.html).
By doing something similar to:
```javascript
import { NativeModules } from 'react-native';
const { AsyncLocalStorage } = NativeModules;
// mock 'multiGet', in order to allow 'AsyncStorage.getItem('myKey')'
AsyncLocalStorage.multiGet.mockImplementationOnce((keys, callback) => {
    callback(null, [['myKey', 'myValue']]);
});
// execute unit tests for code that makes use of 'AsyncStorage'
```
Closes https://github.com/facebook/react-native/pull/13433

Differential Revision: D4883389

Pulled By: javache

fbshipit-source-id: 92a0ee94480b3022acc748e306ee2d4ee7a9869d
2017-04-13 06:32:47 -07:00
Brian Vaughn 703936d9e3 Sync React master (and 16 alpha 4)
Reviewed By: sebmarkbage

Differential Revision: D4747529

fbshipit-source-id: 5efea6422a2502f27c1b23506cbae2187c7f7b0d
2017-03-22 21:30:50 -07:00
Ashwin Bharambe 95c1926193 Introduce `DeviceInfo` as a new native module
Summary:
The `UIManager` already has a lot of responsibilities and is deeply
tied with React Native's view architecture. This diff separates out a
`DeviceInfo` native module to provide information about screen dimensions and
font scale, etc.

Reviewed By: fkgozali

Differential Revision: D4713834

fbshipit-source-id: f2ee93acf876a4221c29a8c731f5abeffbb97974
2017-03-17 17:01:57 -07:00
Christoph Pojer 91b2dbb1de Fix incorrect line numbers in test failures
Reviewed By: voideanvalue

Differential Revision: D4597677

fbshipit-source-id: 9e10fb7aaee16cd902489cd95cfb04a151da2226
2017-02-22 06:51:15 -08:00
Sebastian Markbage c3b25c9059 Patch up for future React Sync
Reviewed By: spicyj, bvaughn

Differential Revision: D4523259

fbshipit-source-id: 317a26ce3e9e48553a7f7c856dd6b48038b4b2ea
2017-02-08 14:50:43 -08:00