在我的 Angular 9 项目中我添加了jest
并删除Jasmine
and Karma
.
我正在测试一项名为CorrectionService
依赖于一个名为的服务RemoteService
.
我想监视RemoteService
查看是否调用了某个方法。我已经通过开玩笑手动模拟成功完成了RemoteService
.
现在我想用TestBed
。我之前的 Jasmine 测试是这样的:
import { TestBed } from '@angular/core/testing';
import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
import { HttpClient } from '@angular/common/http';
import { CorrectionService } from './correction.service';
import { Answer, Question } from './setting';
import { IChoosed } from './question/question.component';
import { RemoteService } from './remote.service';
describe('CorrectionService', () => {
let service: CorrectionService;
let remoteServiceSpy: jasmine.SpyObj<RemoteService>
beforeEach(() => {
const spy = jasmine.createSpyObj('RemoteService', ['saveToRemoteAdditionalData']);
TestBed.configureTestingModule({
imports: [HttpClientTestingModule],
providers: [
CorrectionService,
{provide: RemoteService, useValue: spy}
]
});
service = TestBed.inject(CorrectionService);
remoteServiceSpy = TestBed.inject(RemoteService) as jasmine.SpyObj<RemoteService>;
});
我尝试过使用jest
这样模拟:
import { TestBed } from '@angular/core/testing';
import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing';
import { HttpClient, HttpHandler } from '@angular/common/http';
import { CorrectionService } from './correction.service';
import { Answer, Question } from './setting';
import { IChoosed } from './question/question.component';
import { RemoteService } from './remote.service';
describe('CorrectionService', () => {
let service: CorrectionService;
this.remoteServiceStub = {} as RemoteService;
beforeEach(() => {
this.remoteServiceStub = {saveToRemoteAdditionalData: jest.fn()};
TestBed.configureTestingModule({
imports: [HttpClientTestingModule],
providers:[
CorrectionService,
{provide:RemoteService, useValue: this.remoteServiceStub}
]
});
this.service = TestBed.inject(CorrectionService);
TestBed.inject(RemoteService);
});
但测试不起作用,我得到:
Can't resolve all parameters for CorrectionService: (?).
I guess RemoteService
没有被注入。我做错了什么?