我正在尝试模拟 'Tour of Heroes' Angular 2 Tutorial 的 Heroes-Component| .但是我不知道如何模拟实例化 HeroesComponent 所需的路由器。我尝试用 Jasmine 创建一个 Spy,但这不起作用,因为它缺少属性“RootComponentType”。
我怎样才能让它工作?
import {HeroesComponent} from "./heroes.component";
import {Router} from "@angular/router-deprecated";
import {HeroService} from "./hero.service";
describe('HeroesComponent', () => {
let heroes:HeroesComponent;
let router:Router;
let service:HeroService;
beforeEach(() => {
router = jasmine.createSpyObj('Router', ['navigate']);
service = new HeroService(/* I will care about this later */);
heroes = new HeroesComponent(router, service);
});
it('should be defined', () => {
expect(heroes).toBeDefined();
});
});
它现在正在工作:
describe('HeroesComponent', () => {
let router:any;
let heroesComponent:HeroesComponent;
let service:HeroService;
beforeEach(() => {
router = new class {
navigate = jasmine.createSpy("navigate");
};
heroesComponent = new HeroesComponent(router, service);
});
it('should be defined', () => {
expect(heroesComponent).toBeDefined();
});
});
最佳答案
您可以直接在导航方法上创建 spy 。
为 DI 使用 addProviders:
beforeEach(() => addProviders([ { provide: Router, useClass: class { navigate = jasmine.createSpy("navigate"); } }]));
对于组件的直接初始化:
let router; let heroesComponent; beforeEach(() => { router = new class { navigate = jasmine.createSpy("navigate"); }; heroesComponent = new HeroesComponent(router); });
关于angularjs - 使用 Angular 2 模拟组件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38829533/