void OnTestReq(TestReq req)
{
new TestResp {
Serial = req.Serial
}.InResponseOf(req).Post();
}
void OnTestReq(TestReq e)
{
if (e.Serial != ++txSerial)
{
Console.WriteLine("ERROR tx expected {0} but {1}",
txSerial, e.Serial);
Environment.Exit(1);
}
}