Question

我正在尝试执行简单的路由单元测试，但

TypeError: Cannot read property 'navigate' of undefined

被抛出。

我正在遵循这样的教程

https://codecraft.tv/courses/angular/unit-testing/routing/

这是我的实现方式

路线：

export const routes: Routes = [
  {path: '', pathMatch: 'full', redirectTo: 'welcome'},
  {path: 'welcome', component: WelcomeComponent},
  {path: 'offer', loadChildren: () => import('./customer-dashboard/customer-dashboard.module').then(mod => mod.CustomerDashboardModule)},
  {path: 'underConstruction', component: UnderDevelopmentComponent}
];

@NgModule({
  imports: [RouterModule.forRoot(routes)],
  exports: [RouterModule]
})
export class AppRoutingModule { }

和单元测试：

fdescribe('AppRoutingModule', () => {

    let location: Location;
    let router: Router;
    let fixture;


    beforeEach(() => {
        TestBed.configureTestingModule({
            imports: [
                RouterTestingModule.withRoutes(routes),
                WelcomeModule
            ],
            declarations: [
                AppComponent,
            ],
            providers: [
                Location
            ]
        }).compileComponents()
            .then(() => {
                router = TestBed.get(Router);
                location = TestBed.get(Location);
                fixture = TestBed.createComponent(AppComponent);
                router.initialNavigation();
            })

    });

    it('should navigate from empty path to welcome', fakeAsync(() => {
        router.navigate(['']);
        tick();
        expect(location.path()).toBe('/welcome');
    }))

})

这里没什么好看的，这只是基本设置。看起来TestBed无法获得实现。有任何想法吗？老实说，我在其他简单项目中也有相同的实现，并且在这里也可以正常工作。

Answer 1

假设openssl rand -out my.key 128是一个异步过程，则compileComponents部分中的所有内容都会在测试运行后运行。

尝试对此进行重构：

then

TestBed TypeError：无法读取未定义的属性“导航”

1 个答案: