我有Parent Component它有View child与它关联的组件。我正在尝试为其设置单元测试，parent component但无法View Child使用模拟类覆盖该组件。我想NO_ERRORS_SCHEMA，CUSTOM_SCHEMA在架构提供商，也使用ng2-mock-component。
describe('Mobile Application Card:', () => {
let comp: MobileAppCardComponent;
let fixture: ComponentFixture<MobileAppCardComponent>;
beforeEach(() => {
const mock = MockComponent({ selector: 'bt-modal'}); // View Child Component.
TestBed.configureTestingModule({
declarations: [MobileAppCardComponent, mock],
providers: [{provide: MobileAppService, useValue: serviceStub},
{provide: ToastService, useValue: {}},
{provide: Router, userValue: null }
]
});
fixture = TestBed.createComponent(MobileAppCardComponent);
});
});