angular-cn/packages/zone.js/test/zone-spec/task-tracking.spec.ts

79 lines
2.9 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {supportPatchXHROnProperty} from '../test-util';
declare const global: any;
describe('TaskTrackingZone', function() {
let _TaskTrackingZoneSpec: typeof TaskTrackingZoneSpec = (Zone as any)['TaskTrackingZoneSpec'];
let taskTrackingZoneSpec: TaskTrackingZoneSpec|null = null;
let taskTrackingZone: Zone;
beforeEach(() => {
taskTrackingZoneSpec = new _TaskTrackingZoneSpec();
taskTrackingZone = Zone.current.fork(taskTrackingZoneSpec);
});
it('should track tasks', (done: Function) => {
taskTrackingZone.run(() => {
taskTrackingZone.scheduleMicroTask('test1', () => {});
expect(taskTrackingZoneSpec!.microTasks.length).toBe(1);
expect(taskTrackingZoneSpec!.microTasks[0].source).toBe('test1');
setTimeout(() => {});
expect(taskTrackingZoneSpec!.macroTasks.length).toBe(1);
expect(taskTrackingZoneSpec!.macroTasks[0].source).toBe('setTimeout');
taskTrackingZone.cancelTask(taskTrackingZoneSpec!.macroTasks[0]);
expect(taskTrackingZoneSpec!.macroTasks.length).toBe(0);
setTimeout(() => {
// assert on execution it is null
expect(taskTrackingZoneSpec!.macroTasks.length).toBe(0);
expect(taskTrackingZoneSpec!.microTasks.length).toBe(0);
// If a browser does not have XMLHttpRequest, then end test here.
if (typeof global['XMLHttpRequest'] == 'undefined') return done();
const xhr = new XMLHttpRequest();
xhr.open('get', '/', true);
xhr.onreadystatechange = () => {
if (xhr.readyState == 4) {
// clear current event tasks using setTimeout
setTimeout(() => {
expect(taskTrackingZoneSpec!.macroTasks.length).toBe(0);
expect(taskTrackingZoneSpec!.microTasks.length).toBe(0);
if (supportPatchXHROnProperty()) {
expect(taskTrackingZoneSpec!.eventTasks.length).not.toBe(0);
}
taskTrackingZoneSpec!.clearEvents();
expect(taskTrackingZoneSpec!.eventTasks.length).toBe(0);
done();
});
}
};
xhr.send();
expect(taskTrackingZoneSpec!.macroTasks.length).toBe(1);
expect(taskTrackingZoneSpec!.macroTasks[0].source).toBe('XMLHttpRequest.send');
if (supportPatchXHROnProperty()) {
expect(taskTrackingZoneSpec!.eventTasks[0].source)
.toMatch(/\.addEventListener:readystatechange/);
}
});
});
});
it('should capture task creation stacktrace', (done) => {
taskTrackingZone.run(() => {
setTimeout(() => {
done();
});
expect((taskTrackingZoneSpec!.macroTasks[0] as any)['creationLocation']).toBeTruthy();
});
});
});