单元测试控制器

控制器代码：

angular.module('myModule', [])
  .controller('myController', function($scope) {
    $scope.num = 2;
    $scope.doSomething = function() {
      $scope.num += 2;
    }
  });

考试：

describe('myController', function() {
  var $scope;
  beforeEach(function() {
    module('myModule');
    inject(function($controller, $rootScope) {
      $scope = $rootScope.$new();
      $controller('myController', {
        '$scope': $scope
      })
    });
  });
  it('should increment `num` by 2', function() {
    expect($scope.num).toEqual(2);
    $scope.doSomething();
    expect($scope.num).toEqual(4);
  });
});

跑！