System.Net.Sockets.Tests.SocketOptionNameTest.MulticastOption_CreateSocketSetGetOption_GroupAndInterfaceIndex_SetSucceeds_GetThrows C# (CSharp) Метод

        public void MulticastOption_CreateSocketSetGetOption_GroupAndInterfaceIndex_SetSucceeds_GetThrows()
        {
            int interfaceIndex = 0;
            IPAddress groupIp = IPAddress.Parse("239.1.2.3");

            using (Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
            {
                socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(groupIp, interfaceIndex));

                Assert.Throws<SocketException>(() => socket.GetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership));
            }
        }