如何测试$范围。在AngularJS美元 [英] How do I test $scope.$on in AngularJS

问题描述

我如何测试范围播出后填充？我已经搜查，并发现了一些质量保证是在这里stackexchange，但没有回答我的问题。在code是工作好了，只是不知道如何测试它。我可以补充一点，我是一个新手的测试，特别是与茉莉花。

How do I test that the scope is populated after the broadcast? I've searched and found a few QA's here in stackexchange, but none answered my problem. The code is working alright, just don't know how to test it. May I add that I'm a novice to testing, and especially with Jasmine.

所以，这里的code：

So, here's the code:

服务CrappySvc：

Service CrappySvc:

update: function() {
    $rootScope.$broadcast('updatecrappy', Crappy.query());
}   

控制器GetCrappyCtrl：

Controller GetCrappyCtrl:

  $scope.$on('updatecrappy', function(event, crap) {
    $scope.crap = crap;
  });

茉莉花：

beforeEach(inject(function($rootScope, $httpBackend, $controller, Crappy) {
  rootScope = $rootScope;
  scope = $rootScope.$new();
  Crappy = mockCrappy;

      ...
  spyOn(rootScope, '$broadcast');
      ...

  ctrl = $controller('GetCrappyCtrl', {
  $scope : scope,
  Crappy : mockCrappy
});               

}））;

it('$scope.$on should have been triggered', function() {          
  rootScope.$broadcast('updatecrappy', [{id : 2, name : 'crappy'}]);
  expect(rootScope.$broadcast).toHaveBeenCalledWith('updscenes', [{id : 2, name : 'crappy'}]);

}）;

石

推荐答案

您需要告诉茉莉花让间谍通话的实际$广播功能

You need to tell Jasmine to let the spy call the actual $broadcast function

spyOn($rootScope, '$broadcast').andCallThrough();

如果你不使用 andCallThrough（）间谍什么都不做。

If you don't use andCallThrough() the spy does nothing.

<一个href=\"https://jasmine.github.io/2.0/introduction.html#section-Spies:_<$c$c>and.callThrough</$c$c>\">Jasmine文档

修改

茉莉花2，语法为

spyOn($rootScope, '$broadcast').and.callThrough();

这篇关于如何测试$范围。在AngularJS美元的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！