The test is failing for the service in jasmine

Service

 Service dashboardApp.factory('ExecutiveService', ['$http', function   ($http) {
var _getDashboardData = function () {
return $http.get('/app/data/dashboard.txt');
};


return {

getDashboardData: _getDashboardData

}

} ]);

this is the service used for getting a json file into action

Spec 'use strict';

 describe('Testing ExecutiveServices', function() {

var service, httpBackend, data;

  beforeEach(module('do.dashboard'));

beforeEach(inject(function(ExecutiveService, _$httpBackend_) {
service = ExecutiveService;
httpBackend = _$httpBackend_;
 }));

  it ('should be loaded', function() {
   expect(service).toBeDefined();
 });

  it ('should return data when calling _getDashboardData', function() {
  httpBackend.expectGET('/app/data/dashboard.txt');

  service._getDashboardData().then(function(result) {
  data = result;
});

 httpBackend.flush();

   expect(data).toBe('some data');
 });

 afterEach(function() {
 // make sure all requests where handled as expected.
httpBackend.verifyNoOutstandingRequest();
 httpBackend.verifyNoOutstandingExpectation();
  });
  });

the error i am getting is this Chrome 40.0.2214 (Windows 7) Testing ExecutiveServices should return data when calling _getDashboardData FAILED