public function testAction()
 {
     $form = new AddUser();
     $request = $this->getRequest();
     if ($request->isPost()) {
         $user = new User();
         $formValidator = new AddUserValidator();
         $form->setInputFilter($formValidator->getInputFilter());
         $form->setData($request->getPost());
         if ($form->isValid()) {
             $user->exchangeArray($form->getData());
         }
     }
     return array('form' => $form);
 }