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);
 }
 /**
  * @test
  */
 public function getEci()
 {
     $this->assertEquals(5, $this->authentication->getEci());
 }