assertEquals("expected error", 535, smtpProtocol.getReplyCode());
m_usersRepository.addUser(userName, "pwd");
smtpProtocol.sendCommand("AUTH PLAIN");
smtpProtocol.sendCommand(Base64.encodeAsString("\0" + userName + "\0wrongpwd\0"));
assertEquals("expected error", 535, smtpProtocol.getReplyCode());
smtpProtocol.sendCommand("AUTH PLAIN");
smtpProtocol.sendCommand(Base64.encodeAsString("\0" + userName + "\0pwd\0"));
assertEquals("authenticated", 235, smtpProtocol.getReplyCode());