mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ruslan Shestopalyuk
f76d4dee6f
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/36116 [Changelog][Internal] Add a minimal/reference JavaScript implementation for NativePerformanceObserver - the purpose is both unit testing (JS and native sides separately) and potentially shimming the part of functionality that is not dependent on native side. This is both a setup for adding general unit tests for the Performance* APIs, but also to be able to do non-trivial changes on JS side for WebPerformance (such as in (D43154319). Reviewed By: rubennorte Differential Revision: D43167392 fbshipit-source-id: 213d9534d810dece1dd464f910e92e08dbf39508
57 lines
1.7 KiB
JavaScript
57 lines
1.7 KiB
JavaScript
/**
|
|
* Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @format
|
|
* @oncall react_native
|
|
*/
|
|
|
|
import NativePerformanceObserverMock from '../__mocks__/NativePerformanceObserver';
|
|
import {RawPerformanceEntryTypeValues} from '../RawPerformanceEntry';
|
|
|
|
describe('NativePerformanceObserver', () => {
|
|
it('correctly starts and stops listening to entries in a nominal scenario', async () => {
|
|
NativePerformanceObserverMock.startReporting(
|
|
RawPerformanceEntryTypeValues.MARK,
|
|
);
|
|
|
|
NativePerformanceObserverMock.logRawEntry({
|
|
name: 'mark1',
|
|
entryType: RawPerformanceEntryTypeValues.MARK,
|
|
startTime: 0,
|
|
duration: 10,
|
|
});
|
|
|
|
NativePerformanceObserverMock.logRawEntry({
|
|
name: 'mark2',
|
|
entryType: RawPerformanceEntryTypeValues.MARK,
|
|
startTime: 0,
|
|
duration: 20,
|
|
});
|
|
|
|
NativePerformanceObserverMock.logRawEntry({
|
|
name: 'event1',
|
|
entryType: RawPerformanceEntryTypeValues.EVENT,
|
|
startTime: 0,
|
|
duration: 20,
|
|
});
|
|
|
|
const entriesResult = NativePerformanceObserverMock.popPendingEntries();
|
|
expect(entriesResult).not.toBe(undefined);
|
|
const entries = entriesResult.entries;
|
|
|
|
expect(entries.length).toBe(2);
|
|
expect(entries[0].name).toBe('mark1');
|
|
expect(entries[1].name).toBe('mark2');
|
|
|
|
const entriesResult1 = NativePerformanceObserverMock.popPendingEntries();
|
|
expect(entriesResult1).not.toBe(undefined);
|
|
const entries1 = entriesResult1.entries;
|
|
expect(entries1.length).toBe(0);
|
|
|
|
NativePerformanceObserverMock.stopReporting('mark');
|
|
});
|
|
});
|