private static byte[] GenerateMessageChunk(int messageSize)
{
var buffer = Enumerable.Range(0, messageSize).Select(i => i % byte.MaxValue).Select(i => (byte)i).ToArray();
var stream = new MemoryStream();
var writer = new ChunkWriter(stream);
writer.OpenChunk();
writer.Write(buffer, 0, buffer.Length);
writer.CloseChunk();
// Append end of message marker
writer.OpenChunk();
writer.CloseChunk();
writer.Flush();
writer.Send();
return(stream.ToArray());
}