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我正在爲我的組件編寫一些單元測試，這個神祕的錯誤信息。我在Angular 2 unit testing - getting error Failed to load 'ng:///DynamicTestModule/module.ngfactory.js'處發現了類似的問題，但答案並未幫助我解決問題。我的角度4.3.2Angular 4單元測試錯誤 - 無法在'XMLHttpRequest'上執行'send'：無法加載'ng：///DynamicTestModule/LoginComponent.ngfactory.js'
下面是我寫的測試組件：
import {Component} from '@angular/core';
import {Router} from '@angular/router';
import {NotificationService} from '../common/notification/notification.service';
import {SessionService} from '../common/session/session.service';
import {Login} from './login.model';
@Component({
selector: 'cc-login-form',
templateUrl: './login.component.html',
styleUrls: ['./login.component.scss'],
})
export class LoginComponent {
model: Login = new Login('', '');
constructor(private sessionService: SessionService,
private router: Router,
private notificationService: NotificationService) {
}
onSubmit() {
this.sessionService
.login(this.model.email, this.model.password)
.subscribe(
sessionInfo => {
this.notificationService.showSuccess('notification.successfully.logged.in');
this.router.navigate([`/cc/list`]);
},
error => this.notificationService.showError('notification.invalid.login')
);
}
}
，這裏是測試文件：
import {async, ComponentFixture, TestBed} from '@angular/core/testing';
import {FormsModule} from '@angular/forms';
import {Router} from '@angular/router';
import {TranslateModule, TranslateService} from '@ngx-translate/core';
import {NotificationService} from '../common/notification/notification.service';
import {NotificationServiceStub} from '../common/notification/tests/NotificationServiceStub';
import {SessionService} from '../common/session/session.service';
import {SessionServiceStub} from '../common/session/tests/SessionServiceStub';
import {RouterStub} from '../common/tests/RouterStub';
import {TranslateServiceStub} from '../common/translate/tests/TranslateServiceStub';
import {LoginComponent} from './login.component';
describe('LoginComponent',() => {
let component: LoginComponent;
let fixture: ComponentFixture<LoginComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [
FormsModule,
TranslateModule
],
declarations: [LoginComponent],
providers: [
{provide: SessionService, useClass: SessionServiceStub},
{provide: Router, useClass: RouterStub},
{provide: NotificationService, useClass: NotificationServiceStub},
{provide: TranslateService, useClass: TranslateServiceStub},
]
})
.compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(LoginComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
it('should be created',() => {
expect(component).toBeTruthy();
});
});
運行測試時，我得到以下的鉻控制檯：
zone.js:2642 XMLHttpRequest cannot load ng:///DynamicTestModule/LoginComponent.ngfactory.js. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https.
(anonymous) @ zone.js:2642
zone.js:195 Uncaught DOMException: Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'ng:///DynamicTestModule/LoginComponent.ngfactory.js'.
at http://localhost:9876/_karma_webpack_/webpack:/Users/pedrompg/Documents/quandoo/fe/chains-center/~/zone.js/dist/zone.js:2642:1
at XMLHttpRequest.proto.(anonymous function) [as send] (
任何可以幫助我呢？
編輯 - 1 這裏的服務/存根實現
SessionServiceStub
export class SessionServiceStub implements ISessionService {
login(login: string, password: string): Observable<any> {
return Observable.of({merchantId: 123});
}
logout(): Observable<any> {
throw new Error('Method not implemented.');
}
validateSessionToken(): Observable<any> {
throw new Error('Method not implemented.');
}
}
SessionService
@Injectable()
export class SessionService implements ISessionService {
constructor(private http: CcHttpClient, private router: Router, private localSessionService: LocalSessionService) {
}
login(login: string, password: string): Observable<any> {
return this.http.post(`api/sessions`, {login: login, password: password}).map((res: Object) => {
this.localSessionService.createSession(res);
return res;
});
}
}
RouterStub
export class RouterStub {
navigate(commands: any[], extras?: NavigationExtras): Promise<boolean> {
return Promise.resolve(true);
};
}
TranslationServiceStub
export class TranslateServiceStub {
instant(key: string | Array<string>, interpolateParams?: Object): string | any {
return 'translation';
};
}
NotificationServiceStub
export class NotificationServiceStub implements INotificationService {
showToast(type, text, title, defaultTitle): Promise<Toast> {
return Promise.resolve(null);
}
showSuccess(msg, title?): Promise<Toast> {
return Promise.resolve(null);
}
showError(msg, title?): Promise<Toast> {
return Promise.resolve(null);
}
}
EDIT 2 改變我的測試牀配置以下刪除錯誤，但帶來了一個新問題：
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [
FormsModule,
HttpClientModule,
TranslateModule.forRoot({
loader: {
provide: TranslateLoader,
useFactory: HttpTranslateLoaderFactory,
deps: [HttpClient]
}
})
],
declarations: [LoginComponent],
providers: [
{provide: SessionService, useClass: SessionServiceStub},
{provide: Router, useClass: RouterStub},
{provide: NotificationService, useClass: NotificationServiceStub},
]
})
.compileComponents();
}));
現在的錯誤消息是
TypeError: Cannot read property 'assertPresent' of undefined
at resetFakeAsyncZone home/pedrompg/Documents/quandoo/fe/chains-center/~/@angular/core/@angular/core/testing.es5.js:304:1)
at Object.<anonymous> home/pedrompg/Documents/quandoo/fe/chains-center/~/@angular/core/@angular/core/testing.es5.js:1001:1)
at ZoneQueueRunner.webpackJsonp.../../../../zone.js/dist/jasmine-patch.js.jasmine.QueueRunner.ZoneQueueRunner.execute home/pedrompg/Documents/quandoo/fe/chains-center/~/zone.js/dist/jasmine-patch.js:132:1)
這在這個功能會發生：
function resetFakeAsyncZone() {
_fakeAsyncTestZoneSpec = null;
ProxyZoneSpec.assertPresent().resetDelegate(); //ProxyZoneSpec is undefined here for whatever reason
}
是什麼'RouterStub'樣子？ – markblandford
編輯的問題與存根 –