solution for $httpBackend unexpected requests in jasmine spec for angularjs project

someservice.spec.js

describe('testing using $httpBackend in ionic app', function() {
  var yourAsyncService;
  var $httpBackend;

  // prepare our service and $httpBackend
  beforeEach(function() {
    // load module that holds our service
    // make sure the required module is loaded
    module('module_name');

    // this solves unexpected $httpBackend requests issue
    // https://github.com/angular-ui/ui-router/issues/212#issuecomment-76230499
    module(function($provide, $urlRouterProvider) {
      $provide.value('$ionicTemplateCache', function(){} );
      $urlRouterProvider.deferIntercept();
    });

    // get the services
    inject(function(_$httpBackend_, _yourAsyncService_) {
      yourAsyncService = _yourAsyncService_;
      $httpBackend = _$httpBackend_;
    });
  });

  // some $httpBackend convention
  afterEach(function() {
    $httpBackend.verifyNoOutstandingRequest();
    $httpBackend.verifyNoOutstandingExpectation();
  });
  
  // your tests here...
  
});