角度：单元测试[RouterLink] =“ ['/ account'，record ['account]]”但测试失败错误：无法匹配任何路由。网址段：“ account-details / xyz”

Question

我正在编写单元测试，以查看是否使用正确的参数调用了路由器链接。

component.html

<tr *ngFor="let record of records;let i = index">
   <td>  
     <button [routerLink]="['/account-details', record['account']]"  class="btn">Show Detail</button>
   </td>
</tr>

component.spec.ts

import { RouterTestingModule } from '@angular/router/testing';
import { Router } from '@angular/router';

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      imports: [RouterTestingModule, HttpClientTestingModule],
      declarations: [ AccountsListComponent]
    })
    .compileComponents();
    injector = getTestBed();
    httpMock = injector.get(HttpTestingController);
    injector.get(router);
  }));

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



  it('should fetch details for particular account on click event', () => {
    component.records = [ {"account":""xyz"}];
    fixture.detectChanges();

    let componentLinks = fixture.debugElement.queryAll(By.css('.btn'));
    componentLinks[0].triggerEventHandler('click',null);
    fixture.detectChanges();
    const spy = spyOn(router, 'navigate'); 
    expect(spy).toHaveBeenCalledWith(['/account-details',"xyz"]);//fails

“未处理的承诺拒绝：”，“无法匹配任何路线。网址段：“ account-details / xyz”，“;区域：'，'ProxyZone'，';任务：'，'Promise.then'，';值：'，错误：无法匹配任何路由。网址段：“ account-details / xyz” 错误：无法匹配任何路线。网址段：“ account-details / xyz”