Question

使用ng test时遇到问题：由于此错误，我的测试无法进行：

this.TerrariumsCollection.valueChanges（）不是函数

仅当我使用ng test命令时才会出现此问题。否则，一切似乎都很好。

这是我的TS文件：

TerrariumsCollection  : AngularFirestoreCollection<Terrarium>;
Terrarium             : Observable<Terrarium[]>


  constructor(private afs : AngularFirestore) { 

    this.TerrariumsCollection   = this.afs.collection('Terrarium');
    this.Terrarium              = this.TerrariumsCollection.valueChanges();


  }

这是我的单元测试规范：


import { TestBed } from '@angular/core/testing';

import { MesTerrasService } from './mes-terras.service';
import { BehaviorSubject } from 'rxjs';
import { AngularFirestore, AngularFirestoreModule, AngularFirestoreCollection } from 'angularfire2/firestore';
import { AngularFireModule } from 'angularfire2';

import { environment } from '../environments/environment';
export const firebaseConfig = environment.firebaseConfig;

describe('MesTerrasService', () => {
  beforeEach(() => TestBed.configureTestingModule({
    providers: [
      { provide: AngularFirestore, useValue: FirestoreStub },
    ],
    imports: [
      AngularFireModule.initializeApp(firebaseConfig),
      AngularFirestoreModule,
      AngularFirestoreCollection
    ]
  }));

  it('should be created', () => {
    const service: MesTerrasService = TestBed.get(MesTerrasService);
    expect(service).toBeTruthy();
  });

  const FirestoreStub = {
    collection: (name: string) => ({
      doc: (_id: string) => ({
        valueChanges: () => new BehaviorSubject({ foo: 'bar' }),
        set: (_d: any) => new Promise((resolve, _reject) => resolve()),
      }),
    }),
  };
});

当我使用ng serve时，没问题，它可以工作。我将我的app.module和我在规范中导入的所有模块进行了比较，看起来都不错。我可以忘记一个吗？

能帮我吗？

Firestore：MyCollection.valueChanges（）不是函数

0 个答案: