import { TestBed, async, waitForAsync } from '@angular/core/testing'; import { AppComponent } from './app.component'; import { AppModule } from './app.module'; describe('AppComponent', () => { beforeEach(waitForAsync(() => { TestBed.configureTestingModule({ imports: [AppModule] }).compileComponents(); })); it('should create the app', waitForAsync(() => { const fixture = TestBed.createComponent(AppComponent); const app = fixture.debugElement.componentInstance; expect(app).toBeTruthy(); })); it('should render link to flight in a a tag', waitForAsync(() => { const fixture = TestBed.createComponent(AppComponent); fixture.detectChanges(); const compiled = fixture.debugElement.nativeElement; console.log(compiled); expect(compiled.querySelectorAll(' li a')[2].textContent).toContain( 'Book a Flight' ); })); });