private function readAutenticacao(Transaction $transaction)
 {
     $authentication = new Authentication();
     $authentication->setCode($this->getValue('//c:transacao/c:autenticacao/c:codigo'));
     $authentication->setMessage($this->getValue('//c:transacao/c:autenticacao/c:mensagem'));
     $authentication->setDateTime($this->getValue('//c:transacao/c:autenticacao/c:data-hora'));
     $authentication->setTotal($this->getValue('//c:transacao/c:autenticacao/c:valor'));
     $authentication->setEci($this->getValue('//c:transacao/c:autenticacao/c:eci'));
     $transaction->setAuthentication($authentication);
 }
 /**
  * {@inheritDoc}
  */
 protected function setUp()
 {
     $authentication = new Authentication();
     $authentication->setCode(2);
     $authentication->setMessage('Autenticada com sucesso');
     $authentication->setDateTime('2011-12-08T10:44:47.311-02:00');
     $authentication->setTotal('1000');
     $authentication->setEci(5);
     $this->authentication = $authentication;
 }