Karma：Angular 4没有服务提供商-Java 学习之路

您想在我的角度组件中测试真实的服务 . 但我得到低于错误 . No provider for Service blservice

来自'@ angular / core / testing'的`import {async，getTestBed，TestBed，inject};

import { BlService } from './bl.service';
import { Injectable } from '@angular/core';
import { BaseRequestOptions,
Http,
Response,
ResponseOptions,
XHRBackend
} from '@angular/http';

describe('BlService', () => {
beforeEach(() => {
TestBed.configureTestingModule({
  providers: [BlService]

});
});
it('should be created', inject([BlService], (service: BlService) => {
expect(service).toBeTruthy();
 }));
 });`

错误：

错误：没有BlService的提供者！错误：没有BlService的提供者！在ReflectiveInjector_.prototype.throwOrNull（http://localhost:9876/karma_webpack/vendor.bundle.js:42115:13）在ReflectiveInjector.prototype.getByKeyDefault（http://localhost:9876/karma_webpack/vendor.bundle.js:42154:13）在ReflectiveInjector.prototype.getByKey（http://localhost:9876/karma_webpack/vendor.bundle.js:42086:13）在ReflectiveInjector.prototype.get（http://localhost:9876/karma_webpack/vendor.bundle.js:41955:9）在resolveNgModuleDep（http://localhost:9876/karma_webpack/vendor.bundle.js:48958:5）在NgModuleRef_.prototype.get（http://localhost:9876/karma_webpack/vendor.bundle.js:50028:9）

1 回答

以这种方式解决它：

import {async} from '@angular/core/testing';


beforeEach(async(() => {
  TestBed.configureTestingModule({
    providers: [BlService]
  });
}));

回复于 2024-05-01T08:32:14+08:00

Karma：Angular 4没有服务提供商

1 回答

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