public void TransmitsProtocolHeader()
{
_context.Send(_subject, (Connect, new IPEndPoint(IPAddress.Loopback, _port)));
var socket = _listener.AcceptSocket();
var buffer = new Byte[8];
socket.Receive(buffer, 0, buffer.Length, SocketFlags.None);
ProtocolHeader.Deserialize(buffer, out var result, out var _);
Assert.Equal(expected: ProtocolHeader.Default, actual: result);
}