91 lines
3.3 KiB
TypeScript
91 lines
3.3 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 {combineLatest, Observable} from 'rxjs';
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describe('Observable.combineLatest', () => {
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let log: any[];
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const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
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const constructorZone2: Zone = Zone.current.fork({name: 'Constructor Zone2'});
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const constructorZone3: Zone = Zone.current.fork({name: 'Constructor Zone3'});
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const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
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let observable1: Observable<any>;
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let observable2: any;
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let subscriber1: any;
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let subscriber2: any;
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let combinedObservable: any;
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beforeEach(() => {
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log = [];
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});
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it('combineLatest func should run in the correct zone', () => {
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observable1 = constructorZone1.run(() => new Observable((_subscriber) => {
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subscriber1 = _subscriber;
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expect(Zone.current.name).toEqual(constructorZone1.name);
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log.push('setup1');
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}));
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observable2 = constructorZone2.run(() => new Observable((_subscriber) => {
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subscriber2 = _subscriber;
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expect(Zone.current.name).toEqual(constructorZone2.name);
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log.push('setup2');
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}));
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constructorZone3.run(() => {
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combinedObservable = combineLatest(observable1, observable2);
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});
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subscriptionZone.run(() => {
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combinedObservable.subscribe((combined: any) => {
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expect(Zone.current.name).toEqual(subscriptionZone.name);
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log.push(combined);
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});
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});
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subscriber1.next(1);
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subscriber2.next(2);
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subscriber2.next(3);
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expect(log).toEqual(['setup1', 'setup2', [1, 2], [1, 3]]);
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});
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it('combineLatest func with project function should run in the correct zone', () => {
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observable1 = constructorZone1.run(() => new Observable((_subscriber) => {
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subscriber1 = _subscriber;
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expect(Zone.current.name).toEqual(constructorZone1.name);
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log.push('setup1');
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}));
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observable2 = constructorZone2.run(() => new Observable((_subscriber) => {
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subscriber2 = _subscriber;
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expect(Zone.current.name).toEqual(constructorZone2.name);
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log.push('setup2');
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}));
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constructorZone3.run(() => {
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combinedObservable = combineLatest(observable1, observable2, (x: number, y: number) => {
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expect(Zone.current.name).toEqual(constructorZone3.name);
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return x + y;
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});
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});
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subscriptionZone.run(() => {
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combinedObservable.subscribe((combined: any) => {
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expect(Zone.current.name).toEqual(subscriptionZone.name);
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log.push(combined);
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});
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});
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subscriber1.next(1);
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subscriber2.next(2);
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subscriber2.next(3);
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expect(log).toEqual(['setup1', 'setup2', 3, 4]);
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});
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});
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