return server;
    }

    public void test_doGet_root_dir() throws FtpException {
        FtpServer server = null;
        try {
            String username = "testuser";
            String password = "testpass";
            server = startFtpServer(FTP_PORT, username, password);
            Map<String, Object> params = new HashMap<String, Object>();
            FtpAuthentication auth = new FtpAuthentication();