ChangeDetectionOnPush is a pain to unit test

fixCDPushUnitTests.ts

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      imports: [FormsModule, ReactiveFormsModule],
      declarations: [FormComponent],
      schemas: [CUSTOM_ELEMENTS_SCHEMA],
    })
      .overrideComponent(FormComponent, {
        set: { changeDetection: ChangeDetectionStrategy.Default },
      })
      .compileComponents();
  }));