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

84 lines
2.7 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 {Observable, of } from 'rxjs';
import {catchError, map, retry} from 'rxjs/operators';
describe('Observable.catch', () => {
let log: any[];
let observable1: Observable<any>;
beforeEach(() => { log = []; });
it('catch func callback should run in the correct zone', () => {
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
observable1 = constructorZone1.run(() => {
const error = new Error('test');
const source = of (1, 2, 3).pipe(map((n: number) => {
expect(Zone.current.name).toEqual(constructorZone1.name);
if (n === 2) {
throw error;
}
return n;
}));
return source.pipe(catchError((err: any) => {
expect(Zone.current.name).toEqual(constructorZone1.name);
return of ('error1', 'error2');
}));
});
subscriptionZone.run(() => {
const subscriber = 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([1, 'error1', 'error2', 'completed']);
});
it('retry func callback should run in the correct zone', () => {
const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
const error = new Error('test');
observable1 = constructorZone1.run(() => {
return of (1, 2, 3).pipe(
map((n: number) => {
expect(Zone.current.name).toEqual(constructorZone1.name);
if (n === 2) {
throw error;
}
return n;
}),
retry(1));
});
subscriptionZone.run(() => {
const subscriber = observable1.subscribe(
(result: any) => {
expect(Zone.current.name).toEqual(subscriptionZone.name);
log.push(result);
},
(error: any) => {
expect(Zone.current.name).toEqual(subscriptionZone.name);
log.push(error);
},
() => {
log.push('completed');
expect(Zone.current.name).toEqual(subscriptionZone.name);
});
});
expect(log).toEqual([1, 1, error]);
});
});