Jasmine 组件的角度2单元测试

我正在使用网页2的ng2

我不知道如何测试组件功能 这是我的组件

从“@angular/core”导入{Component，OnInit}； 从“../global.service”导入{GlobalDataService}； 从'@angular/Router'导入{Router}； @组成部分{ 选择器：“登录”， templateUrl:“./login.component.html” } 导出类登录组件{ constructorprivate gd:GlobalDataService，专用路由器：路由器{} 登录名：void{ this.gd.shareObj['role']='admin'； this.router.navigateByUrl'/login'； }

---

} 我会这样做：

class RouterStub {
  navigateByUrl(url: String) { return url; }
}

class GlobalDataServiceStub {
  shareObj: any = {};
}

describe('LoginComponent', () => {
  beforeEach(() => {
    TestBed.configureTestingModule({
      declarations: [LoginComponent],
       providers: [
         { provide: GlobalDataService, useClass: GlobalDataServiceStub },
         { provide: Router, useClass: RouterStub }
       ]
    });

    fixture = TestBed.createComponent(LoginComponent);
    comp = fixture.componentInstance;
  });

  it('should set role to admin',
    inject([GlobalDataService], (gd: GlobalDataService) => {
        comp.login();
        expect(gd.shareObj['role']).toBe('admin');
    })
  );

});