我有loadUserCacheRequestEffect $效果
loadUserCacheRequestEffect$ = createEffect(() =>
this.actions$.pipe(
ofType(ActionTypes.USER_SESSION_CACHE_REQUEST),
switchMap(() => this.taskCacheKeyService.getCacheUserSessionData()
.pipe(
switchMap((sessionData: TaskCacheKey) => [
ActionTypes.USER_SESSION_CACHE_SUCCESS({ sessionData }),
ActionTypes.TASK_DETAILS_REQUEST({
taskId: sessionData.taskId,
templateNumber: sessionData.templateId
})
]),
catchError((err) => {
return of(ActionTypes.USER_SESSION_CACHE_FAILURE({error: err.error.detail}));
})
))
)
);
我为成功的案例编写了单元测试
it('loadUserCacheRequestEffect should return USER_SESSION_CACHE_SUCCESS and TASK_DETAILS_REQUEST actions', () => {
actions$ = hot('a', { a: fromActions.USER_SESSION_CACHE_REQUEST() });
const expected = cold('(bc)', {
b: fromActions.USER_SESSION_CACHE_SUCCESS({
sessionData: userSessionDataMock
}),
c: fromActions.TASK_DETAILS_REQUEST({
taskId: userSessionDataMock.taskId,
templateNumber: userSessionDataMock.templateId
})
});
expect(effects.loadUserCacheRequestEffect$).toBeObservable(expected);
});
当效果失败并返回ActionTypes.USER_SESSION_CACHE_FAILURE({error:err.error.detail})时,我想编写单元测试
答案 0 :(得分:1)
那应该做的,否则就必须对齐弹珠:
it('should handle error', () => {
actions$ = hot('a', {a: fromActions.USER_SESSION_CACHE_REQUEST()});
taskCacheKeyServiceSpy.getCacheUserSessionData.and.returnValue(cold('-#', {}, {error: {details: 'something'}}));
const expected = cold('-b', {
c: ActionTypes.USER_SESSION_CACHE_FAILURE({error: err.error.detail})
});
expect(effects.loadUserCacheRequestEffect).toBeObservable(expected);
});
答案 1 :(得分:1)
经过一些更正后,这是一个有效的示例:
it('it should handle error', () => {
actions$ = hot('a', {a: fromActions.USER_SESSION_CACHE_REQUEST()});
const taskCacheKeyServiceSpy = spyOn(taskCacheKeyService, 'getCacheUserSessionData');
taskCacheKeyServiceSpy.and.returnValue(cold('-#', {}, {error: {detail: 'something'}}));
const expected = cold('-b', {
b: fromActions.USER_SESSION_CACHE_FAILURE({error: 'something'})
});
expect(effects.loadUserCacheRequestEffect$).toBeObservable(expected);
});