ngrx / store-测试，抛出TypeError：无法读取未定义的属性“ pipe”

这是我的ts文件：

this.store.pipe(select(subscribe.getRegCategories)).pipe(takeUntil(this.ngUnsubscribe)).subscribe(data => { if (data && data.length) { this.allRegCategories = data; } });

当我去测试越来越错误为：

this.store.pipe(select(subscribe.getRegCategories)).pipe(takeUntil(this.ngUnsubscribe)).subscribe(data => {

TypeError: Cannot read property 'pipe' of undefined 如何在这里提供管道？解决此问题的正确方法是什么？

这是我的测试规格文件：

import { async, ComponentFixture, TestBed } from '@angular/core/testing'; import { Store, select } from '@ngrx/store'; import { RouterTestingModule } from '@angular/router/testing'; import { HttpClientModule } from '@angular/common/http'; import { ShellViewProgMgmtComponent } from './shell-view-prog-mgmt.component'; import { ViewProgMgmtComponent } from './../../components/view-prog-mgmt/view-prog-mgmt.component'; import * as actions from './../../state/actions/setup-config.actions';

describe('ShellViewProgMgmtComponent', () => { let component: ShellViewProgMgmtComponent; let fixture: ComponentFixture ;

beforeEach(async(() => {
    TestBed.configureTestingModule({
        declarations: [ShellViewProgMgmtComponent, ViewProgMgmtComponent],
        imports: [HttpClientModule, RouterTestingModule],
        providers: [
        {
            provide: Store,
            useValue: {
                dispatch: jest.fn(),
                pipe: jest.fn()
            }
        }
        ]
    })
    .compileComponents();
}));

beforeEach(() => {
    fixture = TestBed.createComponent(ShellViewProgMgmtComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
});