角度测试：无法解决存储的所有参数：（？，？，？）

Question

我试图将我的ngrx/Store声明为测试容器组件的spec文件。所以我导入存储第一和beforeEach内执行以下操作：

 import {Store} from '@ngrx/store'; 

     beforeEach(async(() => { 
     TestBed.configureTestingModule({ 
       declarations: [NotificationsComponent, NotificationsDevicesComponent, 
       ToArrayPipe, OrderByDate, TimezoneFormatPipe], 
       providers: [{ provide: Store, useClass: Store }] 
      }) 
       .compileComponents().then(() => { 
       fixture = TestBed.createComponent(NotificationsComponent); 
       component = fixture.componentInstance; 
       el = fixture.debugElement; 

       fixture.detectChanges(); 
       }); 
      })); 

但我从标题中的错误不能解决店铺的所有参数：（，，？？？）。

任何想法？

非常感谢

Answer 1

我已经使用ngrx和测试store

下面是我遵循的步骤 -

1. 进口StoreModule和Store

   import { StoreModule, Store } from '@ngrx/store'; 
   

2. 进口减速机我

   import { reducers } from './reducers'; 
   

3. 新增StoreModule我TestBed

   TestBed.configureTestingModule({ 
       imports: [ 
       StoreModule.forRoot({ 
        categories: reducers // My reducers 
       }) 
       ], 
   

4. 定义store变量

   let store: Store<CategoryState>; 
   

5. 初始化store

   beforeEach(() => { 
       store = TestBed.get(Store); 
   
       spyOn(store, 'dispatch').and.callThrough(); 
   
       fixture = TestBed.createComponent(CategoryListComponent); 
       component = fixture.componentInstance; 
       fixture.detectChanges(); 
   }); 
   

6. 之后，您可以在测试用例中使用store。