Close #38863 Monkey patches `queueMicrotask()` API, so the callback runs in the zone when scheduled, and also the task is run as `microTask`. ``` Zone.current.fork({ name: 'queueMicrotask', onScheduleTask: (delegate: ZoneDelegate, curr: Zone, target: Zone, task: Task) => { logs.push(task.type); logs.push(task.source); return delegate.scheduleTask(target, task); } }).run(() => { queueMicrotask(() => { expect(logs).toEqual(['microTask', 'queueMicrotask']); expect(Zone.current.name).toEqual('queueMicrotask'); done(); }); }); ``` PR Close #38904
34 lines
1.1 KiB
TypeScript
34 lines
1.1 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {ifEnvSupports} from '../test-util';
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describe(
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'queueMicrotask', ifEnvSupports('queueMicrotask', function() {
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it('callback in the queueMicrotask should be scheduled as microTask in the zone',
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(done: DoneFn) => {
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const logs: string[] = [];
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Zone.current
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.fork({
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name: 'queueMicrotask',
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onScheduleTask: (delegate: ZoneDelegate, curr: Zone, target: Zone, task: Task) => {
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logs.push(task.type);
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logs.push(task.source);
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return delegate.scheduleTask(target, task);
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}
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})
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.run(() => {
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queueMicrotask(() => {
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expect(logs).toEqual(['microTask', 'queueMicrotask']);
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expect(Zone.current.name).toEqual('queueMicrotask');
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done();
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});
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});
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});
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}));
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