Karma unit test -Calling controller's function but not able to inject Service Object

1. If my unit test is calling function which is in controller and that function is having a service call to fetch the details. Will it call service(StationService)?


2. My Karma unit test is not able to inject StationService and not able to call service.

My Code.

/// controller


var policyControllers = angular.module('policyControllers', []);
policyControllers.controller('StationListController', ['$translate', '$scope','$rootScope','$state', 'StationService', 'StationListExportService', function ($translate, $scope, $rootScope, $state, StationService, StationListExportService) {
...
$scope.getFilterDetails = function(StationService, filterDetails ){

  StationService.get(filterDetails).$promise.then(function (filteredDetails) {
        console.log(" Web services Result - ", JSON.stringify(filteredDetails));            
    },function(error) {
        console.log(" Error ");
    });
  };


///Service  

var policyServices = angular.module('policyServices', ['ngResource']);
policyServices.factory('StationService', ['$resource', function($resource) {
    return $resource(policyConfig.mock? 'modules/policymanager/services/mock/stations.json': 'http://ift.tt/1LHVy0C',{},{
    get:{method: 'POST',isArray: false, url:'modules/policymanager/services/mock/stations.json'}
  });
}]);



/// Unit test
describe('station filter', function(){

  var scope;
  var ctrl;
  var translate, scope, rootScope, state;
  var StationService, StationListExportService;

  beforeEach(module('policyServices'));
  beforeEach(module('policyControllers'));



  beforeEach(inject(function(_StationService_, _StationListExportService_, $rootScope, $controller, $translate, $state) {

    StationService = _StationService_;
    StationListExportService = _StationListExportService_;
    translate = $translate;
    rootScope = $rootScope;
    state = $state;
    scope = $rootScope.$new();
    ctrl = $controller('StationListController', {$scope: scope});

  }));




  it('Stations Inject test case', inject(['StationService',function(StationService){

      var data = {"recency":"","countries":[],"policies":[],"stations":[{"stationName":"Test"}],"status":"ready","regions":[]};

    scope.getFilterDetails(StationService, data);

  ///  Getting StationService is undifiened 

  }]));