public void Test_Find_Tcp_Port()
{
int port = TcpUtil.FindFreePort(9000);
Console.Out.WriteLine("Port found: " + port);
Assert.IsTrue(port >= 9000);
IPEndPoint localEndPoint = new IPEndPoint(IPAddress.Loopback, port);
Socket newsock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
newsock.Bind(localEndPoint);
newsock.Listen(10);
newsock.Close();
}