在项目中使用ng6-toastr之后，请在规格文件jasmine中使用setRootViewContainerRef设置root ViewContainerRef。

Question

在使用ng test命令运行测试用例时，请使用setRootViewContainerRef设置root ViewContainerRef错误。此问题在项目中使用ng6-toastr之后出现。

下面是TestBed代码：

beforeEach(async(() => {
TestBed.configureTestingModule({
    imports: [FormsModule, TableModule, DialogModule, HttpClientModule, RouterTestingModule.withRoutes([{
            path: 'Orders',
            component: PlanOrderComponent
        },
        {
            path: 'plan-order-history',
            component: PlanOrderHistoryComponent
        }
    ])],
    declarations: [HeaderComponent, SubheaderComponent, PlanOrderComponent, FilterPlanOrderPipe,
        PlanOrderHistoryComponent
    ],
    providers: [PlanOrderService,
        ConfirmationService, ToastsManager, ToastOptions, ViewContainerRef,
        DataServiceService, ClientService, AppService
    ]
}).compileComponents();

toastsManager = TestBed.get(ToastsManager);
viewContainerRef = TestBed.get(ViewContainerRef);
planOrderService = TestBed.get(PlanOrderService);
dataService = TestBed.get(DataServiceService);
dataService.CHAT_URL = 'ws://localhost:6320/';
fixture = TestBed.createComponent(PlanOrderComponent);
component = fixture.componentInstance;

// toastsManager.setRootViewContainerRef(viewContainerRef);

originalTimeout = jasmine.DEFAULT_TIMEOUT_INTERVAL;
jasmine.DEFAULT_TIMEOUT_INTERVAL = 100000;
}));

it('Fetch plan orders from db : Success case', async(() => {
component.bannerLabel = 'Planning Orders';
const clientSer = TestBed.get(ClientService);

const mockPlanOrder: PlanOrderModel[] = [];

spyOn(planOrderService, 'getAllPlanOrders').and.returnValue(Observable.of < PlanOrderModel[] > (mockPlanOrder));
spyOn(clientSer, 'planOrders').and.returnValue(Observable.of < PlanOrderModel[] > (mockPlanOrder));

component.ngAfterViewInit();

fixture.whenStable().then(() => {
    expect(component.planOrders.length > 0).toBeTruthy();
});
}));

我尝试设置setRootViewContainerRef，但此后给出的信息为“找不到ToastContain的组件工厂，请在此处输入代码。您是否将其添加到@ NgModule.entryComponents？错误