task-api.service.spec.ts

describe('TaskApiService', () => {
  let httpClient: HttpClient;
  let taskApiService: TaskApiService;
  let httpTestingController: HttpTestingController;

  beforeEach(() => {
    TestBed.configureTestingModule({
      imports: [HttpClientTestingModule],
      providers: [TaskApiService],
    });
    httpClient = TestBed.get(HttpClient);
    taskApiService = TestBed.get(TaskApiService);
    httpTestingController = TestBed.get(HttpTestingController);
  });

  it('should create', () => {
    expect(taskApiService).toBeTruthy();
  });

  it('should create task', () => {
    const task = new TaskModel({
      name: 'First task',
      active: true,
      procedureCodeId: '001',
      client: '00122',
    });

    taskApiService.createTask(task)
      .subscribe((response) => {
        expect(response).toEqual(task);
    });

    const request = httpTestingController
      .expectOne(req => req.method === 'POST' && req.url === `${taskApiService['_url']}/clients/tasks`);
    request.flush(task);
  });
});