I'm currently using enyo and I have a function on a component that takes a callback function and makes an ajax call, then calls the callback on success. I can't seem to figure out how to spy on the callback function.

enyo.kind({

  name: 'Login',

  isLoggedIn: function (callback) {

      $.ajax({

        url: '/checkLogin'

      })

      .done(function (data) {

         /* Some logic here */

         return callback.apply(null, data);  //IF all goes well this should call the spy

      })

      .fail(function(){/*Fail Stuff*/});

  }

  ....

});

For the test I have:

describe('Valid User', function() {

   var ajaxSpy;

   var loginTest = new Login();

   beforeEach( function () {



      ajaxSpy = spyOn($, 'ajax').andReturn({

         done: function (fn ) {

             fn();

         },

         fail: function (){}

      });

   });



   it(should call the callback, function () {

      var spy = jasmine.createSpy(spy);

      loginTest.isLoggedIn(spy);

      expect(spy).toHaveBeenCalled();

   });

 }

In this case when this runs the callback becomes undefined, I think it's probably because of the ajax spy intercepting it but I'm unsure how to fix it.