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

import { HeaderService } from './header.service';
import { environment } from 'src/environments/environment';
import { HttpTestingController } from '@angular/common/http/testing';
import { get } from 'http';


describe('HeaderService', () => {

  let service: HeaderService;
  let httpMock: HttpTestingController;

  beforeEach(() =>{ TestBed.configureTestingModule({
    imports:[HttpClientModule, HttpClientTestingModule],
    providers: [HttpClient, HeaderService, HttpTestingController],
  });

    service = TestBed.get(HeaderService);
    httpMock = TestBed.get(HttpTestingController);
});

  it('should be created', () => {
    const service: HeaderService = TestBed.get(HeaderService);
    expect(service).toBeTruthy();
  });

  it('should test getTopMenuItems', () => {
       service.getTopMenuItems().subscribe((res) => {
          expect(res).toBe(environment.getTopMenu);
       });
    })

});