angular-cn/packages/zone.js/test/rxjs/rxjs.Observable.multicast.s...

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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, Subject} from 'rxjs';
import {mapTo, multicast, tap} from 'rxjs/operators';
// TODO: @JiaLiPassion, Observable.prototype.multicast return a readonly _subscribe
// should find another way to patch subscribe
describe('Observable.multicast', () => {
let log: any[];
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const doZone1: Zone = Zone.current.fork({name: 'Do Zone1'});
const mapZone1: Zone = Zone.current.fork({name: 'Map Zone1'});
const multicastZone1: Zone = Zone.current.fork({name: 'Multicast Zone1'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
let observable1: Observable<any>;
beforeEach(() => {
log = [];
});
it('multicast func callback should run in the correct zone', () => {
observable1 = constructorZone1.run(() => {
return of(1, 2, 3);
});
observable1 = doZone1.run(() => {
return observable1.pipe(tap((v: any) => {
expect(Zone.current.name).toEqual(doZone1.name);
log.push('do' + v);
}));
});
observable1 = mapZone1.run(() => {
return observable1.pipe(mapTo('test'));
});
const multi: any = multicastZone1.run(() => {
return observable1.pipe(multicast(() => {
expect(Zone.current.name).toEqual(multicastZone1.name);
return new Subject();
}));
});
multi.subscribe((val: any) => {
log.push('one' + val);
});
multi.subscribe((val: any) => {
log.push('two' + val);
});
multi.connect();
subscriptionZone.run(() => {
observable1.subscribe(
(result: any) => {
expect(Zone.current.name).toEqual(subscriptionZone.name);
log.push(result);
},
() => {
fail('should not call error');
},
() => {
log.push('completed');
expect(Zone.current.name).toEqual(subscriptionZone.name);
});
});
expect(log).toEqual([
'do1', 'onetest', 'twotest', 'do2', 'onetest', 'twotest', 'do3', 'onetest', 'twotest', 'do1',
'test', 'do2', 'test', 'do3', 'test', 'completed'
]);
});
});