how to test $urlRouterProvider for angularjs

app.js

(function (ng, app) {
    ng.module('sokratik.app.container', [
            'ui.router',
        ])
        .config(function myAppConfig($stateProvider, $urlRouterProvider) {
            $urlRouterProvider.otherwise('/start');
        })
        .controller('AppCtrl', ["$scope", "$location", function AppCtrl($scope, $location) {
        }]);


})(angular, "sokratik.app.container");

app.spec.js

describe('AppCtrl', function () {

    var $location, $scope, AppCtrl;



    beforeEach(module('sokratik.app.container'));
    beforeEach(inject(function ($controller, _$location_, $rootScope) {
        $location = _$location_;
        $scope = $rootScope.$new();
        AppCtrl = $controller('AppCtrl', { $location: $location, $scope: $scope });

    }));



    it("initialization checks", inject(function ($urlRouter) {
        $scope.$emit("$locationChangeSuccess");
        expect($location.path()).toBe("/start");
    }));
});