Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL

Here is my test :

  'use strict';
    describe('ps.authentication', function () {
      var $state, $templateCache, $rootScope, $injector, $location, $timeout;

      function mockTemplate(templateRoute, tmpl) {
        $templateCache.put(templateRoute, tmpl || templateRoute);
      }

      function goTo(url) {
        console.log('************** 2222 goTo - url = ', url);
        $location.url(url);
        $rootScope.$digest();
      }

      beforeEach(module('ui.router'));

      beforeEach(inject(function (_$state_, _$templateCache_, _$location_, _$rootScope_, _$injector_) {
        $state = _$state_;
        $templateCache = _$templateCache_;
        $location = _$location_;
        $rootScope = _$rootScope_;
        $injector = _$injector_;
        inject(function ($injector) {
          $timeout = $injector.get('$timeout');
        });

      }));

      describe('path', function () {
        function goTo(url) {
          $location.url(url);
          $rootScope.$digest();
        }

        describe('/login', function () {
          beforeEach(mockTemplate.bind(null, 'auth/login.html'));
          it('should go to the login state 33', function () {
            goTo('/login');

            $timeout.flush();
            console.log('****** This is $state.current 888', $state.current);
            expect($state.current.name).toEqual('');
          });
        });

      });
    });

and Here is my router
angular.module('ps.authentication')
  .config(function ($stateProvider) {
    $stateProvider.state('login', {
      url: '/login',
      views: {
        'content': {
          templateUrl: 'auth/login.html',
          controller: 'AuthController'
        }
      },
      authNotRequired: true
    })
    .state('logout', {
        url: '/logout',
        controller: 'LogoutCtrl',
        authNotRequired: true
    });
  });

Ran the test (grunt test) and got this error message: 01 08 2016 16:50:35.169:INFO [Chrome 51.0.2704 (Mac OS X 10.9.5)]: Connected on socket /#9xB2QxXBGlGLGThUAAAA with id manual-5329 LOG: '****** This is $state.current 888', Object{name: '', url: '^', views: null, abstract: true} Chrome 51.0.2704 (Mac OS X 10.9.5) ps.authentication path /login should go to the login state 33 FAILED Error: Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL. Chrome 51.0.2704 (Mac OS X 10.9.5): Executed 133 of 133 (1 FAILED) (5.235 secs / 5.2 secs) Warning: Task "karma:unit" failed. Use --force to continue.

Any idea what was wrong here and how to fix it. -k