我试图了解如何使用作为新HttpClientModule的一部分提供的模拟功能.我的测试代码几乎完全匹配现有文档中显示的内容.但是,doc示例并不完整 – 例如,至少缺少TestBad和inject的import语句.我假设来自@ angular / common / http的HttpClient也是如此.我的测试代码添加了这些.
此测试失败,因为在httpMock.expectOne调用之后req最终未定义.我很欣赏为什么会这样.
import { TestBed,inject } from '@angular/core/testing';
import { HttpClient } from '@angular/common/http';
import { HttpClientTestingModule,HttpTestingController } from '@angular/common/http/testing';
describe('HttpClientTestingModule',() => {
beforeEach(() => TestBed.configureTestingModule({
imports: [ HttpClientTestingModule ],providers: [ HttpClient,HttpTestingController]
}));
it('expects a GET request',inject([HttpClient,HttpTestingController],(http: HttpClient,httpMock: HttpTestingController) => {
http
.get('/data')
.subscribe(data => expect(data['name']).toEqual('Test Data'));
const req = httpMock.expectOne('/data');
expect(req).toBeDefined();
expect(req.request.method).toEqual('GET');
req.flush({name: 'Test Data'});
httpMock.verify();
}));
});
