how to test http request in angularjs http://ift.tt/1fqRk1h

i am new to angularjs ,i have with my first angular app now i want to test them as well in my app i get some Json data from url and populate in a list i want to test http request but my test fails here is my controllerspec: describe('myAppCtrl', function() { var scope, controller, httpBackend;

beforeEach(module('myApp'));
beforeEach(inject(function($rootScope, $controller, $httpBackend) {
    scope = $rootScope;
    controller = $controller;
    httpBackend = $httpBackend;
}));

it('should populate the reddit data when the HTTP request succeeds', function() {

    httpBackend.when('GET','http://ift.tt/1KEkUhj').respond({names});

    controller('myAppCtrl', {'$scope': scope });
    httpBackend.flush();
    scope.$apply();

    expect(scope.names.children.length).toEqual(25);

});
it('should show the number of items in list',function() {
    var data = $('#title');
    expect(data).toBeTruthy();
    //expect(1).toBe(1);
}); 

});