Angular 无法从假异步测试中生成XHR
Karma/Jasmine完全是新手,正在寻求帮助。我正在尝试运行下面的测试,结果出现错误“无法在假异步测试中生成XHR”。我已经包括了测试和我试图调用的方法。非常感谢您的帮助Angular 无法从假异步测试中生成XHR,angular,karma-jasmine,Angular,Karma Jasmine,Karma/Jasmine完全是新手,正在寻求帮助。我正在尝试运行下面的测试,结果出现错误“无法在假异步测试中生成XHR”。我已经包括了测试和我试图调用的方法。非常感谢您的帮助 import... fdescribe('CageService', () => { beforeEach(() => { TestBed.configureTestingModule({ imports: [ RouterTestingModule,
import...
fdescribe('CageService', () => {
beforeEach(() => {
TestBed.configureTestingModule({
imports: [
RouterTestingModule,
HttpModule
],
providers: [
BaseRequestOptions,
MockBackend,
CageService,
{ provide: 'appHttpService', useClass: AppHttpService },
{ provide: 'appHttpHelperService', useClass: AppHttpHelperService },
{ provide: 'appUtilityService', useClass: AppUtilityService },
{ provide: Http, useFactory: (backend: ConnectionBackend, defaultOptions: BaseRequestOptions) => {
return new Http(backend, defaultOptions);
}, deps: [MockBackend, BaseRequestOptions] }
]
});
});
it('will load cages', inject([CageService, MockBackend], fakeAsync(( cageService, mockBackend\) => {
var res;
mockBackend.connections.subscribe( c => {
expect(c.request.url).toBe('http://example.com');
let response = new ResponseOptions( { body: '{"name": "charles"}' } );
c.mockRespond( new Response( response ) );
});
cageService.load({}).subscribe((_res) => {
res = _res;
});
tick(100);
discardPeriodicTasks();
expect(res.name).toBe('Charles');
})));
});
我调用的方法读取
load ( criteria: Object ) {
return this.appHttpService.get( this.url + '?' + criteria )
.map(
response => {
let data = response.json();
this.pagination.total = data.count;
this.pagination.per_page = data.limit;
this.pagination.current_page = data.currentPage;
this.pagination.last_page = data.totalPages;
let cages = [];
for( let x = 0; x < data.rows.length; x++ ) {
cages.push( this.formatCage(new Cage(), data.rows[x] ) );
}
this._cages$.next( this.dataStore.cages );
return data.rows;
}
);
}
加载(条件:对象){
返回此.appHttpService.get(this.url+'?'+条件)
.地图(
响应=>{
让data=response.json();
this.pagination.total=data.count;
this.pagination.per_page=data.limit;
this.pagination.current_page=data.currentPage;
this.pagination.last_page=data.totalPages;
让笼子=[];
for(设x=0;x
我也遇到了同样的问题,我不确定您使用的angular是什么版本,但这适用于中的HttpClientModule
,不确定它是否适用于HttpModule
。以下是我的版本:
@angular/cli: 1.4.9
node: 8.8.1
os: linux x64
@angular/animations: 4.4.6
@angular/cdk: 2.0.0-beta.12
@angular/common: 4.4.6
@angular/compiler: 4.4.6
@angular/core: 4.4.6
@angular/forms: 4.4.6
@angular/http: 4.4.6
@angular/material: 2.0.0-beta.12
@angular/platform-browser: 4.4.6
@angular/platform-browser-dynamic: 4.4.6
@angular/router: 4.4.6
@angular/cli: 1.4.9
@angular/compiler-cli: 4.4.6
@angular/language-service: 4.4.6
typescript: 2.5.3
这是我的导入
和提供程序
数组:
import { MockBackend } from '@angular/http/testing';
import { HttpClientModule, HttpXhrBackend } from '@angular/common/http';
imports: [
otherStuff...,
HttpClientModule
],
providers: [
otherStuff...,
SomeService,
{
provide: HttpXhrBackend,
useClass: MockBackend
}
]
如果您还没有使用
HttpClient
,它可能值得更新,因为它更易于使用。希望这有帮助 角度6+解决方案。
首先,对于angular 6+,我们必须使用拦截器来处理这个问题。
您需要创建一个实现HttpIntercepter的服务,只需重写“intercept”方法,它就可以返回任何您想要的值
我面临着同样的错误,我的解决方案是
@Injectable()
class TestHttpRequestInterceptor implements HttpInterceptor {
intercept(req: HttpRequest<any>, next: HttpHandler):
Observable<HttpEvent<any>> {
return new Observable<any>(observer => {
observer.next({} as HttpEvent<any>);
});
}
}
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [SharedModule, RouterTestingModule,
StoreModule.forRoot(fromReducers.reducer))
],
declarations: [],
providers: [
LocalStorageService,
{
provide: HTTP_INTERCEPTORS, useClass: TestHttpRequestInterceptor, multi: true
}
],
schemas: [NO_ERRORS_SCHEMA, CUSTOM_ELEMENTS_SCHEMA]
})
.compileComponents();
}));
@Injectable()
类TestHttpRequestInterceptor实现HttpInterceptor{
拦截(请求:HttpRequest,下一步:HttpHandler):
可观察{
返回新的可观察对象(观察者=>{
observer.next({}作为HttpEvent);
});
}
}
beforeach(异步(()=>{
TestBed.configureTestingModule({
导入:[共享模块,路由测试模块,
StoreModule.forRoot(来自reducers.reducer))
],
声明:[],
供应商:[
LocalStorageService,
{
提供:HTTP_拦截器,useClass:TestHttpRequestInterceptor,multi:true
}
],
模式:[无错误模式,自定义元素模式]
})
.compileComponents();
}));
希望代码能有所帮助