public void ParseHave()
{
// u32 len, 1b type, u32 piece_idx
var buffer = new byte[] { 0, 0, 0, 5, 4, 0, 0, 0, 100 };
var result = ProtocolSerialization.TryParseMessage(new ReadOnlySequence <byte>(buffer));
Assert.IsTrue(result.HasValue);
Assert.IsInstanceOf(typeof(Have), result !.Value.Message);
Assert.AreEqual(100u, ((Have)result.Value.Message).PieceIndex);
}
