src/app/app.component.spec.ts
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", () => {
const fixture = TestBed.createComponent(AppComponent);
const app = fixture.debugElement.componentInstance;
expect(app).toBeTruthy();
});
it(`should have as title 'mat-video'`, () => {
const fixture = TestBed.createComponent(AppComponent);
const app = fixture.debugElement.componentInstance;
expect(app.title).toEqual("mat-video");
});
it("should render title in a h1 tag", () => {
const fixture = TestBed.createComponent(AppComponent);
fixture.detectChanges();
const compiled = fixture.debugElement.nativeElement;
expect(compiled.querySelector("h1").textContent).toContain("Welcome to mat-video!");
});
});