Jasmine Testing - Injecting and testing for state change

controller.js

.controller('A', function($scope, $state){

    $scope.functionA = function(ID){
	  			$state.go('next-state',  {number: ID});
	  };
	  		
})

test.js

describe('Controller: A', function () {
    var scope;
    var A;
    
    beforeEach(function () {
      module('sample');
      module('ui.router');
      
      inject(function ($rootScope, $controller,$httpBackend, $state) {
        scope = $rootScope.$new();        
        FindDetailCtrl = $controller('A', {
          $scope: scope,
        });

        $state={
          go: function(state, args){}
        }
      });
    });

    it('should change state and include paramter', inject(function($controller, $rootScope, environment, $httpBackend) {
      
      spyOn($state, 'go')
      scope.functionA(25);
      expect($state.go).toHaveBeenCalledWith('next-state', { number: 25 });
      
    }));
  });