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

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/**
* @license
* Copyright Google LLC 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 {asapScheduler, concat, Observable, range} from 'rxjs';
import {asyncTest} from '../test-util';
describe('Observable.concat', () => {
let log: 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'});
let observable1: Observable<any>;
let observable2: any;
let concatObservable: any;
beforeEach(() => {
log = [];
});
it('concat func callback should run in the correct zone', () => {
observable1 = constructorZone1.run(() => {
return new Observable(subscriber => {
expect(Zone.current.name).toEqual(constructorZone1.name);
subscriber.next(1);
subscriber.next(2);
subscriber.complete();
});
});
observable2 = constructorZone2.run(() => {
return range(3, 4);
});
constructorZone3.run(() => {
concatObservable = concat(observable1, observable2);
});
subscriptionZone.run(() => {
concatObservable.subscribe((concat: any) => {
expect(Zone.current.name).toEqual(subscriptionZone.name);
log.push(concat);
});
});
expect(log).toEqual([1, 2, 3, 4, 5, 6]);
});
it('concat func callback should run in the correct zone with scheduler',
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'});
observable1 = constructorZone1.run(() => {
return new Observable(subscriber => {
expect(Zone.current.name).toEqual(constructorZone1.name);
subscriber.next(1);
subscriber.next(2);
subscriber.complete();
});
});
observable2 = constructorZone2.run(() => {
return range(3, 4);
});
constructorZone3.run(() => {
concatObservable = concat(observable1, observable2, asapScheduler);
});
subscriptionZone.run(() => {
concatObservable.subscribe(
(concat: any) => {
expect(Zone.current.name).toEqual(subscriptionZone.name);
log.push(concat);
},
(error: any) => {
fail('subscribe failed' + error);
},
() => {
expect(Zone.current.name).toEqual(subscriptionZone.name);
expect(log).toEqual([1, 2, 3, 4, 5, 6]);
done();
});
});
expect(log).toEqual([]);
}, Zone.root));
});