import { TestBed, async } from '@angular/core/testing'; import { RouterTestingModule } from '@angular/router/testing'; import { AppComponent } from './app.component'; describe('AppComponent', () => { beforeEach(async(() => { TestBed.configureTestingModule({ imports: [ RouterTestingModule ], declarations: [ AppComponent ], }).compileComponents(); })); it('should create the app', async(() => { const fixture = TestBed.createComponent(AppComponent); const app = fixture.debugElement.componentInstance; expect(app).toBeTruthy(); })); });