116 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			116 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
/**
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 * @license
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 * Copyright Google Inc. 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 {Observable, interval, of } from 'rxjs';
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import {take, takeLast, takeUntil, takeWhile} from 'rxjs/operators';
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import {asyncTest} from '../test-util';
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describe('Observable.take', () => {
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  let log: any[];
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  let observable1: Observable<any>;
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  let defaultTimeout = jasmine.DEFAULT_TIMEOUT_INTERVAL;
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  beforeEach(() => {
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    log = [];
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    jasmine.DEFAULT_TIMEOUT_INTERVAL = 10000;
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  });
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  afterEach(() => { jasmine.DEFAULT_TIMEOUT_INTERVAL = defaultTimeout; });
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  it('take func callback should run in the correct zone', () => {
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    const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
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    const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
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    observable1 = constructorZone1.run(() => { return of (1, 2, 3).pipe(take(1)); });
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    subscriptionZone.run(() => {
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      observable1.subscribe(
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          (result: any) => {
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            log.push(result);
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            expect(Zone.current.name).toEqual(subscriptionZone.name);
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          },
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          (err: any) => { fail('should not call error'); },
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          () => {
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            log.push('completed');
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            expect(Zone.current.name).toEqual(subscriptionZone.name);
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            expect(log).toEqual([1, 'completed']);
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          });
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    });
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  });
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  it('takeLast func callback should run in the correct zone', () => {
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    const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
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    const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
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    observable1 = constructorZone1.run(() => { return of (1, 2, 3).pipe(takeLast(1)); });
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    subscriptionZone.run(() => {
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      observable1.subscribe(
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          (result: any) => {
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            log.push(result);
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            expect(Zone.current.name).toEqual(subscriptionZone.name);
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          },
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          (err: any) => { fail('should not call error'); },
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          () => {
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            log.push('completed');
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            expect(Zone.current.name).toEqual(subscriptionZone.name);
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            expect(log).toEqual([3, 'completed']);
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          });
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    });
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  });
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  xit('takeUntil func callback should run in the correct zone', asyncTest((done: any) => {
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        const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
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        const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
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        observable1 =
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            constructorZone1.run(() => { return interval(10).pipe(takeUntil(interval(25))); });
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        subscriptionZone.run(() => {
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          observable1.subscribe(
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              (result: any) => {
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                log.push(result);
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                expect(Zone.current.name).toEqual(subscriptionZone.name);
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              },
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              (err: any) => { fail('should not call error'); },
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              () => {
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                log.push('completed');
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                expect(Zone.current.name).toEqual(subscriptionZone.name);
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                expect(log).toEqual([0, 1, 'completed']);
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                done();
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              });
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        });
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      }, Zone.root));
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  it('takeWhile func callback should run in the correct zone', asyncTest((done: any) => {
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       const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
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       const takeZone1: Zone = Zone.current.fork({name: 'Take Zone1'});
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       const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
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       observable1 = constructorZone1.run(() => { return interval(10); });
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       observable1 = takeZone1.run(() => {
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         return observable1.pipe(takeWhile((val: any) => {
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           expect(Zone.current.name).toEqual(takeZone1.name);
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           return val < 2;
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         }));
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       });
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       subscriptionZone.run(() => {
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         observable1.subscribe(
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             (result: any) => {
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               log.push(result);
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               expect(Zone.current.name).toEqual(subscriptionZone.name);
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             },
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             (err: any) => { fail('should not call error'); },
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             () => {
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               log.push('completed');
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               expect(Zone.current.name).toEqual(subscriptionZone.name);
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               expect(log).toEqual([0, 1, 'completed']);
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               done();
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             });
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       });
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     }, Zone.root));
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});
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