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

75 lines
2.6 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 {interval, Observable} from 'rxjs';
import {sample, take, throttle} from 'rxjs/operators';
import {asyncTest} from '../test-util';
describe('Observable.sample', () => {
let log: any[];
let observable1: Observable<any>;
beforeEach(() => {
log = [];
});
it('sample func callback should run in the correct zone', asyncTest((done: any) => {
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
observable1 = constructorZone1.run(() => {
return interval(10).pipe(sample(interval(15)));
});
subscriptionZone.run(() => {
const subscriber: any = observable1.subscribe(
(result: any) => {
log.push(result);
expect(Zone.current.name).toEqual(subscriptionZone.name);
subscriber.complete();
},
(err: any) => {
fail('should not call error');
},
() => {
log.push('completed');
expect(Zone.current.name).toEqual(subscriptionZone.name);
expect(log).toEqual([0, 'completed']);
done();
});
});
}, Zone.root));
xit('throttle func callback should run in the correct zone', asyncTest((done: any) => {
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
observable1 = constructorZone1.run(() => {
return interval(10).pipe(take(5), throttle((val: any) => {
expect(Zone.current.name).toEqual(constructorZone1.name);
return interval(20);
}));
});
subscriptionZone.run(() => {
observable1.subscribe(
(result: any) => {
log.push(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([0, 2, 4, 'completed']);
done();
});
});
}, Zone.root));
});