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