public void SmallPayload()
{
var packer = new DataPacker(new IdentityTransformer());
var output = new byte[32];
var input = new byte[5];
new Random().NextBytes(input);
var inputCopy = new byte[input.Length];
Array.Copy(input, inputCopy, input.Length);
var bytesWritten = packer.PackData(1, 2, new ArraySegment <byte>(input), new ArraySegment <byte>(output));
VerifyOutput(inputCopy, output, bytesWritten);
}