Files
react-native/Libraries/LogBox/Data
wangqingyang a950634424 fix: compare the LogBoxData ignorePatterns with the right code (#31977)
Summary:
the `LogBoxData.addIgnorePatterns` function shows the wrong code to get a item in `Set`. because every item in `set.entries` looks like `[value, value]`, but not `value`.

while the `addIgnorePatterns` function evalutes two itertaions that is not necessary. So I refacted this function.

## Changelog

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[General] [Fixed] - for LogBox checking existingPattern in a wrong way.
[General] [Changed] - addIgnorePatterns runs in one iteration.
[General] [Added] - add a function `getIgnorePatterns` in `LogBoxData.js` for tests or other usecases.

Pull Request resolved: https://github.com/facebook/react-native/pull/31977

Test Plan:
test codes in `LogBoxData-test.js`:
````js
it('adding same pattern multiple times', () => {
    expect(LogBoxData.getIgnorePatterns().length).toBe(0);
    LogBoxData.addIgnorePatterns(['abc']);
    expect(LogBoxData.getIgnorePatterns().length).toBe(1);
    LogBoxData.addIgnorePatterns([/abc/]);
    expect(LogBoxData.getIgnorePatterns().length).toBe(2);
    LogBoxData.addIgnorePatterns(['abc']);
    expect(LogBoxData.getIgnorePatterns().length).toBe(2);
    LogBoxData.addIgnorePatterns([/abc/]);
    expect(LogBoxData.getIgnorePatterns().length).toBe(2);
  });

  it('adding duplicated patterns', () => {
    expect(LogBoxData.getIgnorePatterns().length).toBe(0);
    LogBoxData.addIgnorePatterns(['abc', /ab/, /abc/, /abc/, 'abc']);
    expect(LogBoxData.getIgnorePatterns().length).toBe(3);
    LogBoxData.addIgnorePatterns([/ab/, /abc/]);
    expect(LogBoxData.getIgnorePatterns().length).toBe(3);
  });
````

and they have passed

Reviewed By: rickhanlonii

Differential Revision: D30675522

Pulled By: yungsters

fbshipit-source-id: 4a05e0f04a41d06cac416219f1e8e540bf0eea02
2021-09-07 12:00:19 -07:00
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