import { async, ComponentFixture, TestBed } from '@angular/core/testing'; import { RouterTestingModule } from '@angular/router/testing'; import { HeroesComponent } from './heroes.component'; import { HttpClientTestingModule } from '@angular/common/http/testing'; describe('HeroesComponent', () => { let component: HeroesComponent; let fixture: ComponentFixture; beforeEach(async(() => { TestBed.configureTestingModule({ declarations: [ HeroesComponent ], imports: [RouterTestingModule.withRoutes([]), HttpClientTestingModule], }) .compileComponents(); })); beforeEach(() => { fixture = TestBed.createComponent(HeroesComponent); component = fixture.componentInstance; fixture.detectChanges(); }); it('should be created', () => { expect(component).toBeTruthy(); }); });