javascript - Retrieving angular controller via $scope in unit test -

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i'm trying retrieve controller via $scope in jasmine test, fail miserably. know why?

when using controlleras syntax, controller object put on $scope object using name specified in controlleras. running code below in browser using ng-app='myapp' bootstrap angular, can use chrome-dev tools locate , select directive element, , type $0.scope().mydirctrl in console. yield controller object, why can't retrieve controller object in unit test?

running snippet below kick off standalone jasmine browser testing environment. spec test listed @ bottom of snippet. code i'm having issues this:

expect($scope.mydirctrl).tobedefined(); 

/* --------------------------------------      source code     --------------------------------------*/  (function(angular) {    'use strict';      // setup template -----------------    angular.module('myapp.tpls', [])    .run(['$templatecache', function($templatecache) {      $templatecache.put('partials/mydirective.html',                         '<div>{{mydirctrl.testvalue}}</div>');    }]);      // setup app ----------------------    angular.module('myapp', ['myapp.tpls'])      .directive('mydirective', mydirective)      .controller('mydirectivecontroller', mydirectivecontroller);      function mydirective() {      return {        restrict        : 'e',        templateurl     : 'partials/mydirective.html',        transclude      : true,        controlleras    : 'mydirctrl',        bindtocontroller: true,        scope           : {},        controller      : 'mydirectivecontroller'      };    }      mydirectivecontroller.$inject = ['$scope'];    function mydirectivecontroller($scope) {      var ctrl = this;      ctrl.testvalue = 'only test';    }  })(angular);        /* --------------------------------------      test specifications     --------------------------------------*/  (function (module) {    'use strict';        // define tests -------------------    describe('my directive test', function () {      var $compile, $rootscope, $scope;        beforeeach(module('myapp'));      beforeeach(inject(function(_$compile_, _$rootscope_) {        $compile   = _$compile_;        $rootscope = _$rootscope_;        $scope     = $rootscope.$new();      }));        it('scope should contain controller reference', function () {        var element = $compile(angular.element('<my-directive></my-directive>'))($scope);        $scope.$digest();        expect($scope.mydirctrl).tobedefined();      });    });  })(module);
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/jasmine.css">    <script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/jasmine.min.js"></script>  <script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/jasmine-html.min.js"></script>  <script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.3.4/boot.min.js"></script>    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.1/angular.min.js"></script>  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.1/angular-mocks.js"></script>

the problem $scope in spec not same scope used in mydirectivecontroller. directive creates 1 more scope controller, becomes child of spec scope. should able check of angular internal properties in test:

it('scope should contain controller reference', function () {     var element = $compile(angular.element('<my-directive></my-directive>'))($scope);     $scope.$digest();      // controller in child scope     console.log($scope.$$childhead.mydirctrl);      expect($scope.mydirctrl).tobedefined(); });

but not suggest rely on these private angular properties $$childhead, because considered private , not part of public api. think q/a angularjs - access child scope resolve issue.


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