import { TestBed, async } from '@angular/core/testing' import { AppComponent } from './app.component' describe('AppComponent', () => { beforeEach(async(() => { TestBed.configureTestingModule({ declarations: [AppComponent], }).compileComponents() })) it('should create the app', async(() => { const fixture = TestBed.createComponent(AppComponent) const app = fixture.debugElement.componentInstance expect(app).toBeTruthy() })) it(`should have as title 'app'`, async(() => { const fixture = TestBed.createComponent(AppComponent) const app = fixture.debugElement.componentInstance expect(app.title).toEqual('app') })) it('should render title in a h1 tag', async(() => { const fixture = TestBed.createComponent(AppComponent) fixture.detectChanges() const compiled = fixture.debugElement.nativeElement expect(compiled.querySelector('h1').textContent).toContain( 'Welcome to test-proj!', ) })) })