这是我的效果:
getAssessmentPeriods$: Observable<Action> = createEffect(() =>
this.actions$.pipe(
ofType(courseAttributeActions.getAssessmentPeriod_CR),
switchMap(() => this.courseAttributeService.getAssessmentPeriods()
.pipe(
map((value: any) => {
return courseAttributeActions.getAssessmentPeriodSuccess_CR({ payload: value });
}),
catchError(error => of(courseAttributeActions.LoadFailure_CR(error)))
))
));
规范文件:快乐的场景工作正常:
it('should return a cold observable of getAssessmentPeriodSuccess_CR', () => {
const fakeData: any = [];
const start = courseAttributeActions.getAssessmentPeriod_CR();
const completion = courseAttributeActions.getAssessmentPeriodSuccess_CR({ payload: fakeData });
jest.spyOn(service, 'getAssessmentPeriods').mockImplementation(() => of(fakeData));
actions = hot('--a-', { a: start });
const expected = cold('--(b)', { b: completion });
expect(effects.getAssessmentPeriods$).toBeObservable(expected);
});
规范文件:错误场景不起作用:
it('should return a cold observable of LoadFailure_CR error ', () => {
const errors: any = throwError((new Error('Network error')));
const start = courseAttributeActions.getAssessmentPeriod_CR();
const completionError = courseAttributeActions.LoadFailure_CR({error:errors});
jest.spyOn(service, 'getAssessmentPeriods').mockImplementation(() => of(errors));
actions = hot('--a-', { a: start });
const expected = cold('--(b)', { b: completionError });
expect(effects.getAssessmentPeriods$).toBeObservable(expected);
});
在错误场景中如何触发error
服务中?实际上我是从间谍那里发送的。但我仍然收到成功消息。
在控制台中出现错误,例如:
- Expected
+ Received
@@ -4,14 +4,14 @@
"notification": Notification {
"error": undefined,
"hasValue": true,
"kind": "N",
"value": Object {
- "error": Observable {
+ "payload": Observable {
"_isScalar": false,
"_subscribe": [Function anonymous],
},
- "type": "[candidate-registration-management] LoadFailure_CR",
+ "type": "[candidate-registration-management_CR] getAssessmentPeriodSuccess",
},
},
},
]
69 | const expected = cold('--(b)', { b: completionError });
70 |
> 71 | expect(effects.getAssessmentPeriods$).toBeObservable(expected);
如何修复错误?真的需要为 1 个效果编写 2 个单独的“it”函数吗?寻求帮助。提前致谢。