在窗口中测试代码。addEventListener函数

angularjs 基于组件,运行良好,但在任何情况下都要考虑测试覆盖率 window.addEventListener('message', 未涵盖。

我应该嘲笑 window addEventListener ? 或者监视它并检查它是否被调用?

export class MyComponentController {
  constructor() {}

  public theEventOccurred(e: any) {
    let json = JSON.parse(e.data);
    console.log(json.document);
  }

  public $onInit() {
    window.addEventListener('message', (event) => {
      this.theEventOccurred(event);
    }, false);
  }
}

describe('Component: my', () => {

  let $componentController: angular.IComponentControllerService;
  let scope: angular.IScope;

  beforeEach(inject(
    ($rootScope: angular.IScope,
      _$componentController_: angular.IComponentControllerService) => {
      scope = $rootScope.$new();
      $componentController = _$componentController_;
    }));

  describe('Controller: MyComponentController', () => {
    it('should log json.document', () => {
      let ctrl: any = $componentController('my', { $scope: scope });
      ctrl.$onInit();
    });
  });
});