Class App

packages/core/test/component_fixture_spec.ts:380–387

  it('throws errors that happen during detectChanges', () => {
    @Component({
      template: '',
    })
    class App {
      ngOnInit() {
        throw new Error();
      }
    }

    const fixture = TestBed.createComponent(App);
    expect(() => fixture.detectChanges()).toThrow();