angularjs - 测试ui.router $ stateChangeSuccess

我的主控制器中有一个简单的函数，可基于ui.router的$scope.loading和$stateChangeStart事件更新$stateChangeSuccess。

$scope.$on('$stateChangeStart', function(event, toState) {
  if (toState.resolve) {
    $scope.loading = true;
  }
});
$scope.$on('$stateChangeSuccess', function(event, toState) {
  if (toState.resolve) {
    $scope.loading = false;
  }
});

在我尝试进行单元测试之前，这非常有用。我找不到触发$stateChangeSuccess事件的方法。

我的Jasmine单元测试看起来像这样：

it('should set $scope.loading to true', function () {
    expect(scope.loading).toBe(false);
    $state.go('home');
    expect(scope.loading).toBe(true);
    scope.$digest();
    expect(scope.loading).toBe(false);
});

测试失败，因为$stateChangeSuccess从不触发。任何想法将不胜感激。

最佳答案

目前适用于我。

您只需要$broadcast该事件。请在下面阅读一些伪代码。我希望这可以帮助你。

// Note: this is pseudocode

// controller
// assumes you have your usual setup to support this controller.
// assumes this controller is attached to a component or angular controller.

function myController() {
  var vm = this;

  vm.isHappy = false;

  $scope.$on('$stateChangeSuccess', function(event, toState) {
    if (toState.name === 'myState') {
      vm.isHappy = true;
    }
  });
}

// test
// assumes several things
//    * ctrl is the currently mocked controller
//    * has all the necessary setup & injections (such as $rootScope).
//    * testing framework is Jasmine

describe('What happens when I go to my happy place?', function() {
  it('should be visible to all that I am happy.', function() {
    expect(ctrl.isHappy).toBeFalsy();

    $rootScope.$broadcast('$stateChangeSuccess', {
      'name': 'myState'
    });
    // or $scope.$broadcast

    expect(ctrl.isHappy).toBeTruthy();
  }
});