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尝试使用jasmine对angular2应用程序进行单元测试,但是当我尝试注入服务时,间谍不会接受注入的调用.

测试套件:

import { TestBed, inject, tick, fakeAsync, ComponentFixture } from '@angular/core/testing';
import { By } from '@angular/platform-browser';
import { RouterTestingModule } from '@angular/router/testing';

import { RoomComponent } from './room.component';

import { Room } from './room';
import { RoomService } from './room.service';
import { MockRoomService } from '../mock/mock.room.service';
import { BaseRequestOptions, Http, ConnectionBackend, Response, ResponseOptions } from '@angular/http';
import { MockBackend } from '@angular/http/testing';

...

beforeEach(fakeAsync(() => {
TestBed.configureTestingModule({
  declarations: [
    RoomComponent
  ],
  providers: [
    {
      provide: Http, useFactory: (backend: …