angular-cn/packages/zone.js/test/rxjs/rxjs.merge.spec.ts

48 lines
1.8 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 {Observable, interval, merge} from 'rxjs';
import {map, take} from 'rxjs/operators';
import {asyncTest} from '../test-util';
describe('Observable.merge', () => {
let log: any[];
beforeEach(() => { log = []; });
it('merge func callback should run in the correct zone', asyncTest((done: any) => {
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const constructorZone2: Zone = Zone.current.fork({name: 'Constructor Zone2'});
const constructorZone3: Zone = Zone.current.fork({name: 'Constructor Zone3'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
const observable1: any = constructorZone1.run(
() => { return interval(8).pipe(map(v => 'observable1' + v), take(1)); });
const observable2: any = constructorZone2.run(
() => { return interval(10).pipe(map(v => 'observable2' + v), take(1)); });
const observable3: any =
constructorZone3.run(() => { return merge(observable1, observable2); });
subscriptionZone.run(() => {
const subscriber = observable3.subscribe(
(result: any) => {
log.push(result);
expect(Zone.current.name).toEqual(subscriptionZone.name);
},
() => { fail('should not call error'); },
() => {
log.push('completed');
expect(Zone.current.name).toEqual(subscriptionZone.name);
expect(log).toEqual(['observable10', 'observable20', 'completed']);
done();
});
});
}, Zone.root));
});