单元测试AngularJS $窗口服务

.factory('httpResponseInterceptor',['$q','$location','$window','CONTEXT_PATH',function($q,$location,$window,contextPath){
     return {
         response : function (response) {
             //Will only be called for HTTP up to 300
             return response;
         },responseError: function (rejection) {
             if(rejection.status === 405 || rejection.status === 401) {
                 $window.location.href = contextPath + '/signin';
             }
             return $q.reject(rejection);
         }
     };
}]);

我尝试过以下套件：

describe('Controllers',function () {
    var $scope,ctrl;
    beforeEach(module('curriculumModule'));
    beforeEach(module('curriculumControllerModule'));
    beforeEach(module('curriculumServiceModule'));
    beforeEach(module(function($provide) {
       $provide.constant('CONTEXT_PATH','bignibou'); // override contextPath here
    }));
    describe('CreateCurriculumCtrl',function () {
        var mockBackend,location,_window;
        beforeEach(inject(function ($rootScope,$controller,$httpBackend,$window) {
            mockBackend = $httpBackend;
            location = $location;
            _window = $window;
            $scope = $rootScope.$new();
            ctrl = $controller('CreateCurriculumCtrl',{
                $scope: $scope
            });
        }));

        it('should redirect to /signin if 401 or 405',function () {
            mockBackend.whenGET('bignibou/utils/findLanguagesByLanguageStartingWith.json?language=fran').respond([{"description":"Fran?ais","id":46,"version":0}]);
            mockBackend.whenPOST('bignibou/curriculum/new').respond(function(method,url,data,headers){
                return [401];
            });
            $scope.saveCurriculum();
            mockBackend.flush();
            expect(_window.location.href).toEqual("/bignibou/signin");
        });


    });
});

但是,它会失败,并显示以下错误消息：

PhantomJS 1.9.2 (Linux) Controllers CreateCurriculumCtrl should redirect to /signin if 401 or 405 FAILED
    Expected 'http://localhost:9876/context.html' to equal '/bignibou/signin'.
PhantomJS 1.9.2 (Linux) ERROR
    Some of your tests did a full page reload!

我不知道发生了什么问题,为什么.有人可以帮忙吗？

我只是想确保$window.location.href等于’/ bignibou / signin’.

编辑1：

我设法让它工作如下(感谢“dskh”)：

beforeEach(module('config',function($provide){
      $provide.value('$window',{location:{href:'dummy'}});
 }));