Sluchaika

import { Injectable } from '@angular/core';
import { ReplaySubject } from 'rxjs/ReplaySubject';

@Injectable()
export class PopupService {

  private popupDialog = new ReplaySubject<{popupEvent: string, component?, options?: {}}>();

  public popupDialog$ = this.popupDialog.asObservable();

Sluchaika

import { PopupService } from './popup.service';
import { SignInComponent } from '../components/signin/signin.component';

describe('PopupService', () => {
  let service: PopupService;
  // create PopupService instance
  beforeEach(() => { service = new PopupService(); });
  // we need 'done' to avoid test finishing before date was received
  it('subscribe for opening works', (done: DoneFn) => {
    service.open(SignInComponent, [{title: 'Попап заголовок', message: 'Успешно'}]);

Sluchaika

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  template: '<h1> Welcome to {{ title }}!</h1>',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'app';
}

Sluchaika

beforeEach(async(() => {
  TestBed.configureTestingModule({
    declarations: [
      AppComponent
    ],
  }).compileComponents();
}));

Sluchaika

beforeEach(() => {
  fixture = TestBed.createComponent(AppComponent);
  comp = fixture.componentInstance;
});

Sluchaika

it('should create the comp',  => {
   expect(comp).toBeTruthy();
});
it(`should have as title 'app'`, () => {
   expect(comp.title).toEqual('app');
});

Sluchaika

it('should render title in a h1 tag', () => {
  fixture.detectChanges();
  const compiled = fixture.debugElement.nativeElement;
  expect(compiled.querySelector('h1').textContent)
    .toContain('Welcome to app!');
});

Sluchaika

export class AppComponent {
  constructor(private popup: PopupService) { }
  title = 'app';
}

Sluchaika

TestBed.configureTestingModule({
  declarations: [
    AppComponent
  ],
  providers: [PopupService]
});

Sluchaika

const popupServiceStub = {
  open: () => {}
};