cinema.service.spec.ts

import { TestBed, inject } from '@angular/core/testing';
import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
import { HttpClient } from '@angular/common/http';

import { CinemaService } from './cinema.service';
import { Theater } from '../models/index';

describe('CinemaService', () => {

  let theaters: Theater[];

  beforeEach(() => {
    TestBed.configureTestingModule({
      imports: [HttpClientTestingModule],
      providers: [CinemaService]
    });
  });

  it('should contain theaters data', inject([CinemaService, HttpClient, HttpTestingController],
  (service: CinemaService, http: HttpClient, httpMock: HttpTestingController) => {

    service.getTheaters().subscribe((data) => {
      expect(data[0].id).toEqual(1);
    });

    theaters = [
      {
        id: 1,
        title: `Test`,
        address: `test`,
        logo: {
          src: 'static/images/theaters/test.png'
        }
      }
    ];

    const req = httpMock.expectOne('/api/theaters');

    req.flush(theaters);

    httpMock.verify();

  }));

});