本文介绍了如何测试Firestore方法的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下问题:
我想测试以下使用Firestore的方法:
I want to test the following methods who make use of Firestore:
databaseService.ts
import {Injectable} from '@angular/core';
import {AngularFirestore} from '@angular/fire/firestore';
@Injectable({
providedIn: 'root'
})
export class DatabaseService {
constructor(private afs: AngularFirestore) {
}
pushToDatabase(subject: string, key: string, object: Object): void {
this.afs.collection(subject).doc(key).set(JSON.parse(JSON.stringify(object)));
}
async getData(subject: string, key: string): Promise<firebase.firestore.DocumentData> {
const document = await this.afs.collection(subject).doc(key).ref.get();
return document.data();
}
async deleteData(subject: string, key: string) {
return await this.afs.collection(subject).doc(key).delete();
}
}
databaseService.spec.ts
import {TestBed} from '@angular/core/testing';
import {DatabaseService} from './database.service';
import {AngularFirestore, AngularFirestoreModule} from '@angular/fire/firestore';
import {LoginComponent} from '../../components/login/login.component';
import {HttpClientTestingModule} from '@angular/common/http/testing';
import {InjectionToken} from '@angular/core';
import {AngularFireModule} from '@angular/fire';
import {async} from 'q';
import {AuthService} from '../auth/auth.service';
import {Router} from '@angular/router';
import {GithubService} from '../github/github.service';
export class AngularFirestoreMock {
}
describe('DatabaseService', () => {
let sut: DatabaseService;
let angularFireStore: AngularFirestore;
beforeEach(() => {
TestBed.configureTestingModule({
providers: [DatabaseService, AngularFirestore]
});
TestBed.overrideComponent(LoginComponent, {
set: {
providers: [
{provide: AngularFirestore, useClass: AngularFirestoreMock}
]
}
});
sut = TestBed.get(DatabaseService);
angularFireStore = TestBed.get(AngularFirestore);
});
describe('#pushToDatabase', async () => {
it('should push data', function () {
});
});
});
但是我不知道如何开始.我发现&安装了 firestore-mock 库.但是即使有了这个库,我也不知道如何进行.
But i don't know how to start. I found & installed the firestore-mock library. But even with this library i don't know how to proceed.
有人可以帮我吗?
推荐答案
这对我来说是测试AngularFirestore的基本设置:
This works for me as a basic setup for testing AngularFirestore:
{
const fakeAFS = jasmine.createSpyObj( 'AngularFirestore', [ 'collection' ]);
fakeAFS.collection.and.returnValue(jasmine.createSpyObj( 'collection', [ 'doc', 'snapshotChanges', 'valueChanges' ]));
fakeAFS.collection().doc.and.returnValue(jasmine.createSpyObj( 'doc', ['valueChanges']));
fakeAFS.collection().doc().valueChanges.and.returnValue( of('FakeDocument'));
fakeAFS.collection().doc().update.and.returnValue(Promise.resolve(null));
TestBed.configureTestingModule({
providers: [
{ provide: AngularFirestore, useValue: fakeAFS }
]
});
}
然后,进行测试:
{
it('Fake afs should work', () => {
const collectionRef = fakeAFS.collection('TestCollectionName').doc('FAKE-ID').valueChanges();
expect(fakeAFS.collection).toHaveBeenCalledWith('TestCollectionName');
expect(fakeAFS.collection().doc).toHaveBeenCalledWith('FAKE-ID');
expect(collectionRef).toBeTruthy();
});
it('Fake AFS Update should work', async () => {
const testUpdate = await fakeAFS.collection().doc().update();
expect(testUpdate).toBe(null);
});
}
这篇关于如何测试Firestore方法的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!