public static void ClientPInvokeChecks()
    {
        using (AnonymousPipeServerStream server = new AnonymousPipeServerStream(PipeDirection.In))
        {
            using (AnonymousPipeClientStream client = new AnonymousPipeClientStream(PipeDirection.Out, server.ClientSafePipeHandle))
            {
                Task serverTask = Task.Run(() => DoStreamOperations(server));

                Assert.False(client.CanRead);
                Assert.False(client.CanSeek);
                Assert.False(client.CanTimeout);
                Assert.True(client.CanWrite);
                Assert.False(client.IsAsync);
                Assert.True(client.IsConnected);
                if (Interop.IsWindows)
                {
                    Assert.Equal(0, client.OutBufferSize);
                }
                else
                {
                    Assert.Throws<PlatformNotSupportedException>(() => client.OutBufferSize);
                }
                Assert.Equal(PipeTransmissionMode.Byte, client.ReadMode);
                Assert.NotNull(client.SafePipeHandle);
                Assert.Equal(PipeTransmissionMode.Byte, client.TransmissionMode);

                client.Write(new byte[] { 123 }, 0, 1);
                client.WriteAsync(new byte[] { 124 }, 0, 1).Wait();
                if (Interop.IsWindows)
                {
                    client.WaitForPipeDrain();
                }
                else
                {
                    Assert.Throws<PlatformNotSupportedException>(() => client.WaitForPipeDrain());
                }
                client.Flush();

                serverTask.Wait();
            }
        }

        using (AnonymousPipeServerStream server = new AnonymousPipeServerStream(PipeDirection.Out))
        {
            using (AnonymousPipeClientStream client = new AnonymousPipeClientStream(PipeDirection.In, server.ClientSafePipeHandle))
            {
                Task serverTask = Task.Run(() => DoStreamOperations(server));

                if (Interop.IsWindows)
                {
                    Assert.Equal(4096, client.InBufferSize);
                }
                else
                {
                    Assert.Throws<PlatformNotSupportedException>(() => client.InBufferSize);
                }
                byte[] readData = new byte[] { 0, 1 };
                Assert.Equal(1, client.Read(readData, 0, 1));
                Assert.Equal(1, client.ReadAsync(readData, 1, 1).Result);
                Assert.Equal(123, readData[0]);
                Assert.Equal(124, readData[1]);

                serverTask.Wait();
            }
        }
    }
    public static void ClientPInvokeChecks()
    {
        using (AnonymousPipeServerStream server = new AnonymousPipeServerStream(PipeDirection.In))
        {
            using (AnonymousPipeClientStream client = new AnonymousPipeClientStream(PipeDirection.Out, server.ClientSafePipeHandle))
            {
                Task serverTask = DoServerOperationsAsync(server);
                Console.WriteLine("client.CanRead = {0}", client.CanRead);
                Console.WriteLine("client.CanSeek = {0}", client.CanSeek);
                Console.WriteLine("client.CanTimeout = {0}", client.CanTimeout);
                Console.WriteLine("client.CanWrite = {0}", client.CanWrite);
                Console.WriteLine("client.IsAsync = {0}", client.IsAsync);
                Console.WriteLine("client.IsConnected = {0}", client.IsConnected);
                Console.WriteLine("client.OutBufferSize = {0}", client.OutBufferSize);
                Console.WriteLine("client.ReadMode = {0}", client.ReadMode);
                Console.WriteLine("client.SafePipeHandle = {0}", client.SafePipeHandle);
                Console.WriteLine("client.TransmissionMode = {0}", client.TransmissionMode);

                client.Write(new byte[] { 123 }, 0, 1);
                client.WriteAsync(new byte[] { 124 }, 0, 1).Wait();
                client.WaitForPipeDrain();
                client.Flush();

                serverTask.Wait();
            }
        }

        using (AnonymousPipeServerStream server = new AnonymousPipeServerStream(PipeDirection.Out))
        {
            using (AnonymousPipeClientStream client = new AnonymousPipeClientStream(PipeDirection.In, server.ClientSafePipeHandle))
            {
                Task serverTask = DoServerOperationsAsync(server);

                Console.WriteLine("client.InBufferSize = {0}", client.InBufferSize);
                byte[] readData = new byte[] { 0, 1 };
                client.Read(readData, 0, 1);
                client.ReadAsync(readData, 1, 1).Wait();
                Assert.Equal(123, readData[0]);
                Assert.Equal(124, readData[1]);

                serverTask.Wait();
            }
        }
    }