Angular 在角度单元测试中定义时未定义的对象

我正在研究我的测试环境，并试图通过在单元测试期间未定义的

oidc客户端解决单个用户配置文件的问题

我尝试过使
之前的
方法
async
无效，我也尝试过重新构造我的
AuthService

这是我从测试组件中得到的错误：

ResourcesCardComponent>应创建

失败：无法读取未定义的属性“profile”

AuthService

import { Injectable } from '@angular/core';
import { UserManager, User, WebStorageStateStore } from 'oidc-client';
import { BehaviorSubject } from 'rxjs';
import { ConfigAssetLoaderService } from '../config-asset-loader.service';
@Injectable({
  providedIn: 'root'
})
export class AuthService {
  private _userManager: UserManager;
  public _user: User;
  public isLoggedInSubject$ = new BehaviorSubject<any>(this._user);
  isLoggedIn = this.isLoggedInSubject$.asObservable();

  constructor(private configService: ConfigAssetLoaderService) {
    const config = {};
    this.configService.loadConfiguration().subscribe(response => {
      config['authority'] = response.authority;
      config['client_id'] = response.client_id;
      config['redirect_uri'] = response.redirect_uri;
      config['scope'] = response.scope;
      config['response_type'] = response.response_type;
      config['loadUserInfo'] = response.loadUserInfo;
      config['userStore'] = new WebStorageStateStore({store: window.sessionStorage});
      config['metadata'] = {
        issuer: response.issuer,
        authorization_endpoint: response.authorization_endpoint,
        userinfo_endpoint: response.userinfo_endpoint,
        jwks_uri: response.jwks_uri,
        end_session_endpoint: response.end_session_endpoint
      };
      config['signingKeys'] = response.signingKeys;
      config['extraQueryParams'] = {
        resource: response.claimsApiResourceId
      };
      this._userManager = new UserManager(config);
      this._userManager.getUser().then(user => {
        if (user && !user.expired) {
          this._user = user;
          this.isLoggedInSubject$.next(user);
        }
      });
    });
  }
}

以下是
ResourceCardComponent
的测试组件：

import { async, ComponentFixture, TestBed } from '@angular/core/testing';
import { ResourcesCardComponent } from './resources-card.component';
import { HttpClientTestingModule } from '@angular/common/http/testing';
import { ActivatedRoute, RouterModule } from '@angular/router';
import { ResourcesCardContainerComponent } from './resources-card-container/resources-card-container.component';

const fakeRoute = {
  snapshot: {
      data: {
        actionLinks: []
      }
  }
};

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

  beforeEach(async(() => {
    TestBed.configureTestingModule({
      declarations: [
        ResourcesCardComponent,
        ResourcesCardContainerComponent
      ],
      imports: [
        RouterModule,
        HttpClientTestingModule
      ],
      providers: [
        {
          provide: ActivatedRoute,
          useFactory: () => fakeRoute
        }
      ]
    }).compileComponents();
  }));

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

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

从'@angular/core/testing'导入{async，ComponentFixture，TestBed}；
从“./resources card.component”导入{resourcescarddcomponent}；
从'@angular/common/http/testing'导入{HttpClientTestingModule}；
从“@angular/router”导入{ActivatedRoute，RouterModule}；
从“./resources-card-container/resources-card-container.component”导入{ResourcesCardContainerComponent}；
常数fakeRoute={
快照：{
数据：{
actionLinks:[]
}
}
};
描述（'ResourcesCardComponent'，（）=>{
let组件：ResourcesCardComponent；
let夹具：组件夹具；
beforeach（异步（（）=>{
TestBed.configureTestingModule({
声明：[
资源共享组件，
资源共享容器组件
],
进口：[
路由模块，
HttpClientTestingModule
],
供应商：[
{
提供：激活的路由，
useFactory:（）=>fakeRoute
}
]
}).compileComponents（）；
}));
beforeach（异步（（）=>{
fixture=TestBed.createComponent（ResourcesCardComponent）；
组件=fixture.componentInstance；
fixture.detectChanges（）；
}));
它（'应该创建'，（）=>{
component.actionLinks=[]；
expect（component.toBeTruthy（）；
});
});
您使用

public isLoggedInSubject$ = new BehaviorSubject<any>(this._user)

我完全意识到这是一个错误，我正试图找出如何避免这个错误。有什么想法吗？
public isLoggedInSubject$ = new BehaviorSubject<any>(this._user)

spyOn(authService , 'isLoggedInSubject$').and.returnValue(of({profile:{unique_name:'some name'}}))