Angular 4测试 – 抛出[object ErrorEvent]

[object ErrorEvent] thrown

我将node_modules更新为我在以下链接中找到的解决方案
How do I debug a “[object ErrorEvent] thrown” error in my Karma/Jasmine tests?

但现在错误随机出现,有时候测试床没有任何故障,有时会出现错误触发.有任何建议可以永久避免它吗？

PS – 如果您需要更多资源,请在评论中告诉我.谢谢！

SomeComponent.spec.ts

import { RouterTestingModule } from '@angular/router/testing';
import { FormsModule,ReactiveFormsModule } from '@angular/forms';
import { NgModule } from '@angular/core';
import { HttpClient,HttpClientModule } from '@angular/common/http';
import { TranslateLoader,TranslateModule } from '@ngx-translate/core';
import { async,ComponentFixture,TestBed } from '@angular/core/testing';
import { NgbModule } from '@ng-bootstrap/ng-bootstrap';

import { SomeComponent } from './some.component';
import { HttpLoaderFactory } from '../app.module';
import { AppRoutingModule } from '../app-routing.module';    
import { SomeService } from './../services/some.service';

describe('SomeComponent',() => {
  let component: SomeComponent;
  let fixture: ComponentFixture<SomeComponent>;

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      imports: [
        TranslateModule.forRoot({
          loader: {
            provide: TranslateLoader,useFactory: HttpLoaderFactory,deps: [HttpClient]
          }
        }),HttpClientModule,AppRoutingModule,FormsModule,ReactiveFormsModule,RouterTestingModule,NgbModule.forRoot(),],declarations: [
        SomeComponent
       ],providers: [
        SomeService
       ]
    })
    .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(SomeComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  it('should create',() => {
    expect(component).toBeTruthy();
  });
});