public void Socket_SendToAsyncDnsEndPoint_Throws()
{
Socket socket = new Socket(SocketType.Dgram, ProtocolType.Udp);
SocketAsyncEventArgs args = new SocketAsyncEventArgs();
args.RemoteEndPoint = new DnsEndPoint("localhost", UnusedPort);
args.SetBuffer(new byte[1], 0, 1);
Assert.Throws<ArgumentException>(() =>
{
socket.SendToAsync(args);
});
}