private void VerifyTimeout(int readTimeout)
{
using (var com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName))
using (var com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName))
{
IAsyncResult readAsyncResult;
var asyncRead = new AsyncRead(com1);
var asyncEndRead = new Task(asyncRead.EndRead);
var asyncCallbackCalled = false;
com1.Open();
com2.Open();
com1.ReadTimeout = readTimeout;
readAsyncResult = com1.BaseStream.BeginRead(new byte[8], 0, 8,
delegate(IAsyncResult ar) { asyncCallbackCalled = true; }, null);
asyncRead.ReadAsyncResult = readAsyncResult;
Thread.Sleep(100 > com1.ReadTimeout ? 2 * com1.ReadTimeout : 200);
// Sleep for 200ms or 2 times the ReadTimeout
if (readAsyncResult.IsCompleted)
{
// Verify the IAsyncResult has not completed
Fail("Err_565088aueiud!!!: Expected read to not have completed");
}
asyncEndRead.Start();
TCSupport.WaitForTaskToStart(asyncEndRead);
Thread.Sleep(100 < com1.ReadTimeout ? 2 * com1.ReadTimeout : 200);
// Sleep for 200ms or 2 times the ReadTimeout
if (!asyncEndRead.IsCompleted)
{
// Verify EndRead is blocking and is still alive
Fail("Err_4085858aiehe!!!: Expected read to not have completed");
}
if (asyncCallbackCalled)
{
Fail("Err_750551aiuehd!!!: Expected AsyncCallback not to be called");
}
com2.Write(new byte[8], 0, 8);
TCSupport.WaitForTaskCompletion(asyncEndRead);
var waitTime = 0;
while (!asyncCallbackCalled && waitTime < 5000)
{
Thread.Sleep(50);
waitTime += 50;
}
Assert.True(asyncCallbackCalled, "Err_21208aheide!!!: Expected AsyncCallback to be called after some data was written to the port");
}
}
private bool VerifyTimeout(int readTimeout)
{
SerialPort com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName);
SerialPort com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName);
bool retValue = true;
System.IAsyncResult readAsyncResult;
AsyncRead asyncRead = new AsyncRead(com1);
System.Threading.Thread asyncEndRead = new System.Threading.Thread(new System.Threading.ThreadStart(asyncRead.EndRead));
int waitTime;
bool asyncCallbackCalled = false;
com1.Open();
com2.Open();
com1.ReadTimeout = readTimeout;
readAsyncResult = com1.BaseStream.BeginRead(new byte[8], 0, 8, delegate(IAsyncResult ar) { asyncCallbackCalled = true; }, null);
asyncRead.ReadAsyncResult = readAsyncResult;
System.Threading.Thread.Sleep(100 > com1.ReadTimeout ? 2 * com1.ReadTimeout : 200); //Sleep for 200ms or 2 times the ReadTimeout
if (readAsyncResult.IsCompleted)
{//Verify the IAsyncResult has not completed
Console.WriteLine("Err_565088aueiud!!!: Expected read to not have completed");
retValue = false;
}
asyncEndRead.Start();
waitTime = 0;
while (asyncEndRead.ThreadState == System.Threading.ThreadState.Unstarted && waitTime < MAX_WAIT_THREAD)
{//Wait for the thread to start
System.Threading.Thread.Sleep(50);
waitTime += 50;
}
if (MAX_WAIT_THREAD <= waitTime)
{
Console.WriteLine("Err_018158ajied!!!: Expected EndRead to have returned");
retValue = false;
}
System.Threading.Thread.Sleep(100 < com1.ReadTimeout ? 2 * com1.ReadTimeout : 200); //Sleep for 200ms or 2 times the ReadTimeout
if (!asyncEndRead.IsAlive)
{//Verify EndRead is blocking and is still alive
Console.WriteLine("Err_4085858aiehe!!!: Expected read to not have completed");
retValue = false;
}
if (asyncCallbackCalled)
{
Console.WriteLine("Err_750551aiuehd!!!: Expected AsyncCallback not to be called");
retValue = false;
}
com2.Write(new byte[8], 0, 8);
waitTime = 0;
while (asyncEndRead.IsAlive && waitTime < MAX_WAIT_THREAD)
{
System.Threading.Thread.Sleep(50);
waitTime += 50;
}
if (MAX_WAIT_THREAD <= waitTime)
{
Console.WriteLine("Err_018158ajied!!!: Expected EndRead to have returned");
retValue = false;
}
waitTime = 0;
while (!asyncCallbackCalled && waitTime < 5000)
{
System.Threading.Thread.Sleep(50);
waitTime += 50;
}
if (!asyncCallbackCalled)
{
Console.WriteLine("Err_21208aheide!!!: Expected AsyncCallback to be called after some data was written to the port");
retValue = false;
}
if (com1.IsOpen)
{
com1.Close();
}
if (com2.IsOpen)
{
com2.Close();
}
return(retValue);
}