Angular 16路卫单元测试可观察到的SpyObj属性

try 熟悉路由警卫的单元测试.我有一个相对直接的后卫，它从主题asObservable获取一个值，以初始化UrlTree或返回布尔值.

在浏览器调试器中，我无法进入map函数来查看任何值，并且我的测试失败，因为从未调用过间谍方法.提前感谢您的任何帮助或见解.

guard

  export const loginGuard: CanActivateFn = () => {
  const userService: UserService = inject(UserService);
  const router: Router = inject(Router);

  return userService.isLoggedIn$
    .pipe(
      take(1),
      map(loggedIn => {
        return loggedIn ? router.createUrlTree(['/dashboard']) : true;
      }));
};

test

  const executeGuard: CanActivateFn = (...guardParameters) =>
    TestBed.runInInjectionContext(() => loginGuard(...guardParameters));
  const mockRouter = jasmine.createSpyObj('Router', ['createUrlTree']);
  const mockUserService = jasmine.createSpyObj('UserService', [], {isLoggedIn$: of(true)});
  let activatedRoute: ActivatedRoute;
  beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [
        {provide: Router, useValue: mockRouter},
        {provide: UserService, useValue: mockUserService},
        {
          provide: ActivatedRoute,
          useValue: {
            snapshot: {}
          }
        }
      ]
    });
    activatedRoute = TestBed.inject(ActivatedRoute);
  });

  it('should redirect to dashboard', () => {
    executeGuard(activatedRoute.snapshot, {} as RouterStateSnapshot);
    expect(mockRouter.createUrlTree).toHaveBeenCalledWith('/dashboard');
  });

  it('should proceed to login', () => {
    mockUserService.isLoggedIn$ = of(false);
    const canActivate = executeGuard(activatedRoute.snapshot, {} as RouterStateSnapshot);
    expect(canActivate).toBeTruthy();
  });