angular-cn/packages/zone.js/test/rxjs/rxjs.Observable.do.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 {Observable, of} from 'rxjs';
import {tap} from 'rxjs/operators';
describe('Observable.tap', () => {
let log: any[];
let observable1: Observable<any>;
beforeEach(() => {
log = [];
});
it('do func callback should run in the correct zone', () => {
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const doZone1: Zone = Zone.current.fork({name: 'Do Zone1'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
const error = new Error('test');
observable1 = constructorZone1.run(() => {
return of(1);
});
observable1 = doZone1.run(() => {
return observable1.pipe(tap((v: any) => {
log.push(v);
expect(Zone.current.name).toEqual(doZone1.name);
}));
});
subscriptionZone.run(() => {
observable1.subscribe(
(result: any) => {
log.push('result' + result);
expect(Zone.current.name).toEqual(subscriptionZone.name);
},
(err: any) => {
fail('should not call error');
},
() => {
log.push('completed');
expect(Zone.current.name).toEqual(subscriptionZone.name);
expect(log).toEqual([1, 'result1', 'completed']);
});
});
});
});