private TransportMessage SendAndReceiveCore(Action doSend)
{
// Definitely not thread safe; none of the integration tests that use
// a single SqsTestContext instance can run in parallel.
TransportMessage lastReceivedMessage = null;
Exception lastThrownException = null;
var retryCount = 0;
using (ReceivedMessages.Subscribe(m => lastReceivedMessage = m))
using (ExceptionsThrownByReceiver.Subscribe(e => lastThrownException = e))
{
doSend();
while (lastReceivedMessage == null && lastThrownException == null && retryCount < 100)
{
retryCount++;
Thread.Sleep(50);
}
}
if (retryCount >= 100)
{
throw new TimeoutException("Receiving a message timed out.");
}
if (lastThrownException == null)
{
return(lastReceivedMessage);
}
else
{
throw lastThrownException;
}
}