Angular 4.3.0 & cli 1.2.0: après exécution de la commande: "ng test" J'ai ces échecs

Question

Angular 4.3.0 & cli 1.2.0: après l'exécution de la commande: "ng test" J'ai ces échecs

AppComponent should create the app should have as title 'app' should render title in a h1 tag DashboardComponent should be created 

Answer 1

code de vérification ng test dépend de votre * .spec.ts, afin de vérifier votre app.component.spec.ts, trouver le message d'erreur, comme

it(`should have as title 'app'`, async(() => { 
    const fixture = TestBed.createComponent(AppComponent); 
    const app = fixture.debugElement.componentInstance; 
    expect(app.title).toEqual('app'); // <--- this line cause the error, it means in your app.component.ts there should has a variable **title** and equal *app* 
}));