Angular 2 unit testing - @ViewChild is undefined

Question

I am writing an Angular 2 unit test. I have a @ViewChild subcomponent that I need to recognize after the component initializes. In this case it\'s a Timepicke

Answer 1

In most cases just add it to declaration and you are good to go.

beforeEach(async(() => {
        TestBed
            .configureTestingModule({
                imports: [],
                declarations: [TimepickerComponent],
                providers: [],
            })
            .compileComponents()