我被困在一個失敗的unitest,但我不知道爲什麼。Angular 2模擬http post單元測試失敗
所以我有一個服務,我想測試。一個簡單的服務發佈到API網址。
這裏是服務
import { Injectable } from '@angular/core';
import { Http, Response, RequestOptions, Headers } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import { environment } from '../../../environments/environment';
import 'rxjs/add/operator/map';
import { ICarrierDetails } from './carrier-details';
@Injectable()
export class CarrierService {
apiGatewayCartUri = environment.cartApiUri;
constructor(private http: Http) { }
getCarriersDetails(): Observable<ICarrierDetails[]> {
return this.http.post(this.apiGatewayCartUri + 'carriers/', {})
.map((response: Response) => <ICarrierDetails[]>response.json());
}
}
代碼這裏是我的規格文件:
import { CarrierService } from './carrier.service'
import { Observable } from 'rxjs/Observable';
import { environment } from '../../../environments/environment';
import 'rxjs/add/observable/of';
describe('CarrierService',() => {
let carrierService: CarrierService;
let mockHttp;
let apiGatewayCartUri;
beforeEach(() => {
apiGatewayCartUri = environment.cartApiUri;
mockHttp = jasmine.createSpyObj('mockHttp', ['post'])
carrierService = new CarrierService(mockHttp)
});
describe('Should call http.post method with the right URL',() => {
mockHttp.post.and.returnValue(Observable.of(false));
carrierService.getCarriersDetails();
expect(mockHttp.post).toHaveBeenCalledWith(apiGatewayCartUri + 'carriers/', {});
});
});
這是例外,我讓所有的時間在控制檯:
鉻59.0.3071 (Mac OS X 10.12.5)CarrierService應該使用正確的URL調用http.post方法遇到聲明異常失敗 TypeError:無法讀取undef的屬性'post'在套房裏註冊了 。 (http://localhost:9883/_karma_webpack_/main.bundle.js:97:17) at ZoneDelegate.webpackJsonp .../../../../zone.js/dist/zone.js.ZoneDelegate.invoke(http://localhost:9883/_karma_webpack_/polyfills.bundle.js:10672:26) at Zone.webpackJsonp .../.. /。 ./../zone.js/dist/zone.js.Zone.run(http://localhost:9883/_karma_webpack_/polyfills.bundle.js:10464:43) at Suite。 (http://localhost:9883/_karma_webpack_/vendor.bundle.js:2195:29) at Env.jasmineEnv。(匿名函數)[如描述](http://localhost:9883/_karma_webpack_/vendor.bundle.js:2172:38) at Suite。 (http://localhost:9883/_karma_webpack_/main.bundle.js:96:5) at ZoneDelegate.webpackJsonp .../../../../zone.js/dist/zone.js.ZoneDelegate.invoke(http://localhost:9883/_karma_webpack_/polyfills.bundle.js:10672:26) at Zone.webpackJsonp .../.. /。 ./../zone.js/dist/zone.js.Zone.run(http://localhost:9883/_karma_webpack_/polyfills.bundle.js:10464:43) at Suite。 (http://localhost:9883/_karma_webpack_/vendor.bundle.js:2195:29)
我覺得這部分是錯誤的'carrierService =新CarrierService(mockHttp)',你不能在單元測試使用這樣的服務。有關服務測試的更多擴展http://chariotsolutions.com/blog/post/testing-angular-2-0-x-services-http-jasmine-karma/ – onetwo12