AngularJS - $filter not in global scope -

i trying write unit test filter wrote in angular (1.0.7). filter working on actual page, know getting registered correctly. want write unit test it.

var application = angular.module('customer', []);     application.filter('date', function () {     return function (date) {         return moment(date).format('mm/dd/yyyy');     }; }); 

at top of test page, include angular.js file.

<script type="text/javascript" src="../angular.js"></script> 

supposedly, there $filter function retrieving registered filters. debugger freaks out , says it's not there. can see actual angular variable, know angular being included correctly.

i wondering if missing .js file or if $filter in different scope or newer version of angular.

you can use $filter('date') date filter injecting $filter module before test stub. created working demo , please take @ required js files.

describe('date', function () {     var datafilter;     beforeeach(angular.mock.module('customer'));      beforeeach(function () {         angular.mock.inject(function ($filter) {             datafilter = $filter('date');         })     });      describe('date result', function () {         it('should return filtered date', function () {             var date = new date(2013, 7, 15);             expect(datafilter(date)).tobe('08/15/2013');         });     }); }); 

demo