public void BytesToWriteSuccessive() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { AsyncWriteRndCharArray asyncWriteRndCharArray = new AsyncWriteRndCharArray(com, CHAR_SIZE_BYTES_TO_WRITE); var t1 = new Task(asyncWriteRndCharArray.WriteRndCharArray); var t2 = new Task(asyncWriteRndCharArray.WriteRndCharArray); Debug.WriteLine("Verifying BytesToWrite with successive calls to Write"); com.Handshake = Handshake.RequestToSend; com.Open(); com.WriteTimeout = 4000; //Write a random char[] asynchronously so we can verify some things while the write call is blocking t1.Start(); TCSupport.WaitForTaskToStart(t1); TCSupport.WaitForExactWriteBufferLoad(com, CHAR_SIZE_BYTES_TO_WRITE); //Write a random char[] asynchronously so we can verify some things while the write call is blocking t2.Start(); TCSupport.WaitForTaskToStart(t2); TCSupport.WaitForExactWriteBufferLoad(com, CHAR_SIZE_BYTES_TO_WRITE * 2); //Wait for both write methods to timeout TCSupport.WaitForTaskCompletion(t1); var aggregatedException = Assert.Throws <AggregateException>(() => TCSupport.WaitForTaskCompletion(t2)); Assert.IsType <IOException>(aggregatedException.InnerException); } }
public void SuccessiveReadTimeoutWithWriteSucceeding() { using (SerialPort com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { Random rndGen = new Random(-55); AsyncEnableRts asyncEnableRts = new AsyncEnableRts(); var t = new Task(asyncEnableRts.EnableRTS); com1.WriteTimeout = rndGen.Next(minRandomTimeout, maxRandomTimeout); com1.Handshake = Handshake.RequestToSend; com1.Encoding = new UTF8Encoding(); Debug.WriteLine("Verifying WriteTimeout={0} with successive call to write method with the write succeeding sometime before its timeout", com1.WriteTimeout); com1.Open(); //Call EnableRTS asynchronously this will enable RTS in the middle of the following write call allowing it to succeed //before the timeout is reached t.Start(); TCSupport.WaitForTaskToStart(t); try { com1.Write(new char[CHAR_SIZE_TIMEOUT], 0, CHAR_SIZE_TIMEOUT); } catch (TimeoutException) { } asyncEnableRts.Stop(); TCSupport.WaitForTaskCompletion(t); VerifyTimeout(com1); } }
public void BytesToWriteSuccessive() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { AsyncWriteRndStr asyncWriteRndStr = new AsyncWriteRndStr(com, s_STRING_SIZE_BYTES_TO_WRITE); var t1 = new Task(asyncWriteRndStr.WriteRndStr); var t2 = new Task(asyncWriteRndStr.WriteRndStr); int numNewLineBytes; Debug.WriteLine("Case BytesToWriteSuccessive : Verifying BytesToWrite with successive calls to Write"); com.Handshake = Handshake.RequestToSend; com.Open(); com.WriteTimeout = 1000; numNewLineBytes = com.Encoding.GetByteCount(com.NewLine.ToCharArray()); //Write a random string asynchronously so we can verify some things while the write call is blocking t1.Start(); TCSupport.WaitForTaskToStart(t1); TCSupport.WaitForWriteBufferToLoad(com, s_STRING_SIZE_BYTES_TO_WRITE + numNewLineBytes); //Write a random string asynchronously so we can verify some things while the write call is blocking t2.Start(); TCSupport.WaitForTaskToStart(t2); TCSupport.WaitForWriteBufferToLoad(com, (s_STRING_SIZE_BYTES_TO_WRITE + numNewLineBytes) * 2); //Wait for both write methods to timeout TCSupport.WaitForTaskCompletion(t1); var aggregatedException = Assert.Throws <AggregateException>(() => TCSupport.WaitForTaskCompletion(t2)); Assert.IsType <IOException>(aggregatedException.InnerException); } }
public void BytesToWriteSuccessive() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { Debug.WriteLine("Verifying BytesToWrite with successive calls to Write"); com.Handshake = Handshake.RequestToSend; com.Open(); com.WriteTimeout = 4000; int blockLength = TCSupport.MinimumBlockingByteCount; // Write a random byte[] asynchronously so we can verify some things while the write call is blocking Task t1 = Task.Run(() => WriteRandomDataBlock(com, blockLength)); TCSupport.WaitForTaskToStart(t1); TCSupport.WaitForWriteBufferToLoad(com, blockLength); // Write a random byte[] asynchronously so we can verify some things while the write call is blocking Task t2 = Task.Run(() => WriteRandomDataBlock(com, blockLength)); TCSupport.WaitForTaskToStart(t2); TCSupport.WaitForWriteBufferToLoad(com, blockLength * 2); // Wait for both write methods to timeout TCSupport.WaitForTaskCompletion(t1); TCSupport.WaitForTaskCompletion(t2); } }
public void BytesToWrite() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { AsyncWriteRndStr asyncWriteRndStr = new AsyncWriteRndStr(com, s_STRING_SIZE_BYTES_TO_WRITE); var t = new Task(asyncWriteRndStr.WriteRndStr); int numNewLineBytes; Debug.WriteLine("Case BytesToWrite : Verifying BytesToWrite with one call to Write"); com.Handshake = Handshake.RequestToSend; com.Open(); com.WriteTimeout = 500; numNewLineBytes = com.Encoding.GetByteCount(com.NewLine.ToCharArray()); //Write a random string asynchronously so we can verify some things while the write call is blocking t.Start(); TCSupport.WaitForTaskToStart(t); TCSupport.WaitForWriteBufferToLoad(com, s_STRING_SIZE_BYTES_TO_WRITE + numNewLineBytes); TCSupport.WaitForTaskCompletion(t); } }
private void VerifyTimeout(int writeTimeout) { using (var com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) using (var com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName)) { var asyncRead = new AsyncWrite(com1); var asyncEndWrite = new Task(asyncRead.EndWrite); var asyncCallbackCalled = false; com1.Open(); com2.Open(); com1.Handshake = Handshake.RequestToSend; com1.WriteTimeout = writeTimeout; IAsyncResult writeAsyncResult = com1.BaseStream.BeginWrite(new byte[8], 0, 8, ar => asyncCallbackCalled = true, null); asyncRead.WriteAsyncResult = writeAsyncResult; Thread.Sleep(100 > com1.WriteTimeout ? 2 * com1.WriteTimeout : 200); // Sleep for 200ms or 2 times the WriteTimeout if (writeAsyncResult.IsCompleted) { // Verify the IAsyncResult has not completed Fail("Err_565088aueiud!!!: Expected read to not have completed"); } asyncEndWrite.Start(); TCSupport.WaitForTaskToStart(asyncEndWrite); Thread.Sleep(100 < com1.WriteTimeout ? 2 * com1.WriteTimeout : 200); // Sleep for 200ms or 2 times the WriteTimeout if (asyncEndWrite.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.RtsEnable = true; TCSupport.WaitForTaskCompletion(asyncEndWrite); var waitTime = 0; while (!asyncCallbackCalled && waitTime < 5000) { Thread.Sleep(50); waitTime += 50; } if (!asyncCallbackCalled) { Fail( "Err_21208aheide!!!: Expected AsyncCallback to be called after some data was written to the port"); } } }
public void Handshake_None() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { Debug.WriteLine("Verifying Handshake=None"); com.Open(); // Write a random byte[] asynchronously so we can verify some things while the write call is blocking Task task = Task.Run(() => WriteRandomDataBlock(com, TCSupport.MinimumBlockingByteCount)); TCSupport.WaitForTaskToStart(task); // Wait for write methods to complete TCSupport.WaitForTaskCompletion(task); Assert.Equal(0, com.BytesToWrite); } }
public void BytesToWrite() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { AsyncWriteRndCharArray asyncWriteRndCharArray = new AsyncWriteRndCharArray(com, CHAR_SIZE_BYTES_TO_WRITE); var t = new Task(asyncWriteRndCharArray.WriteRndCharArray); Debug.WriteLine("Verifying BytesToWrite with one call to Write"); com.Handshake = Handshake.RequestToSend; com.Open(); com.WriteTimeout = 500; //Write a random char[] asynchronously so we can verify some things while the write call is blocking t.Start(); TCSupport.WaitForTaskToStart(t); TCSupport.WaitForExactWriteBufferLoad(com, CHAR_SIZE_BYTES_TO_WRITE); TCSupport.WaitForTaskCompletion(t); } }
public void BytesToWrite() { using (SerialPort com = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { Debug.WriteLine("Verifying BytesToWrite with one call to Write"); com.Handshake = Handshake.RequestToSend; com.Open(); com.WriteTimeout = 200; // Write a random byte[] asynchronously so we can verify some things while the write call is blocking Task task = Task.Run(() => WriteRandomDataBlock(com, TCSupport.MinimumBlockingByteCount)); TCSupport.WaitForTaskToStart(task); TCSupport.WaitForWriteBufferToLoad(com, TCSupport.MinimumBlockingByteCount); // Wait for write method to timeout and complete the task TCSupport.WaitForTaskCompletion(task); } }
public void SuccessiveWriteTimeoutSomeData_WriteByte() { using (var com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) { var asyncEnableRts = new AsyncEnableRts(); var t = new Task(asyncEnableRts.EnableRTS); com1.Open(); com1.Handshake = Handshake.RequestToSend; Stream stream = com1.BaseStream; stream.WriteTimeout = SUCCESSIVE_WriteTimeout_SOMEDATA; Debug.WriteLine( "Verifying WriteTimeout={0} with successive call to WriteByte() and some data being received in the first call", stream.WriteTimeout); // Call EnableRTS asynchronously this will enable RTS in the middle of the following write call allowing it to succeed // before the timeout is reached t.Start(); TCSupport.WaitForTaskToStart(t); try { stream.WriteByte(DEFAULT_WRITE_BYTE); } catch (TimeoutException) { } asyncEnableRts.Stop(); TCSupport.WaitForTaskCompletion(t); // Make sure there is no bytes in the buffer so the next call to write will timeout com1.DiscardInBuffer(); VerifyTimeout(WriteByte, stream); } }
private void Verify_Handshake(Handshake handshake) { using (var com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) using (var com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName)) { Debug.WriteLine("Verifying Handshake={0}", handshake); com1.Handshake = handshake; com1.Open(); com2.Open(); // Setup to ensure write will bock with type of handshake method being used if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = false; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.BaseStream.WriteByte(XOnOff.XOFF); Thread.Sleep(250); } // Write a block of random data asynchronously so we can verify some things while the write call is blocking Task task = Task.Run(() => WriteRandomDataBlock(com1, TCSupport.MinimumBlockingByteCount)); TCSupport.WaitForTaskToStart(task); TCSupport.WaitForWriteBufferToLoad(com1, TCSupport.MinimumBlockingByteCount); // Verify that CtsHolding is false if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && com1.CtsHolding) { Fail("ERROR!!! Expected CtsHolding={0} actual {1}", false, com1.CtsHolding); } // Setup to ensure write will succeed if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = true; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.BaseStream.WriteByte(XOnOff.XON); } // Wait till write finishes TCSupport.WaitForTaskCompletion(task); // Verify that the correct number of bytes are in the buffer // (There should be nothing because it's all been transmitted after the flow control was released) Assert.Equal(0, com1.BytesToWrite); // Verify that CtsHolding is true if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && !com1.CtsHolding) { Fail("ERROR!!! Expected CtsHolding={0} actual {1}", true, com1.CtsHolding); } } }
private void Verify_Handshake(Handshake handshake) { using (SerialPort com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) using (SerialPort com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName)) { byte[] XOffBuffer = new byte[1]; byte[] XOnBuffer = new byte[1]; XOffBuffer[0] = 19; XOnBuffer[0] = 17; int numNewLineBytes; Debug.WriteLine("Verifying Handshake={0}", handshake); com1.WriteTimeout = 3000; com1.Handshake = handshake; com1.Open(); com2.Open(); numNewLineBytes = com1.Encoding.GetByteCount(com1.NewLine.ToCharArray()); //Setup to ensure write will block with type of handshake method being used if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = false; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.Write(XOffBuffer, 0, 1); Thread.Sleep(250); } //Write a random string asynchronously so we can verify some things while the write call is blocking string randomLine = TCSupport.GetRandomString(s_STRING_SIZE_HANDSHAKE, TCSupport.CharacterOptions.Surrogates); byte[] randomLineBytes = com1.Encoding.GetBytes(randomLine); Task task = Task.Run(() => com1.WriteLine(randomLine)); TCSupport.WaitForTaskToStart(task); TCSupport.WaitForWriteBufferToLoad(com1, randomLineBytes.Length + numNewLineBytes); //Verify that CtsHolding is false if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && com1.CtsHolding) { Fail("ERROR!!! Expcted CtsHolding={0} actual {1}", false, com1.CtsHolding); } //Setup to ensure write will succeed if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = true; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.Write(XOnBuffer, 0, 1); } //Wait till write finishes TCSupport.WaitForTaskCompletion(task); Assert.Equal(0, com1.BytesToWrite); //Verify that CtsHolding is true if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && !com1.CtsHolding) { Fail("ERROR!!! Expected CtsHolding={0} actual {1}", true, com1.CtsHolding); } } }
private void Verify_Handshake(Handshake handshake) { using (var com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) using (var com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName)) { var asyncWriteRndByteArray = new AsyncWriteRndByteArray(com1, s_BYTE_SIZE_HANDSHAKE); var t = new Task(asyncWriteRndByteArray.WriteRndByteArray); var XOffBuffer = new byte[1]; var XOnBuffer = new byte[1]; XOffBuffer[0] = 19; XOnBuffer[0] = 17; Debug.WriteLine("Verifying Handshake={0}", handshake); com1.Handshake = handshake; com1.Open(); com2.Open(); // Setup to ensure write will bock with type of handshake method being used if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = false; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.BaseStream.Write(XOffBuffer, 0, 1); Thread.Sleep(250); } // Write a random byte asynchronously so we can verify some things while the write call is blocking t.Start(); TCSupport.WaitForTaskToStart(t); TCSupport.WaitForWriteBufferToLoad(com1, s_BYTE_SIZE_HANDSHAKE); // Verify that CtsHolding is false if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && com1.CtsHolding) { Fail("ERROR!!! Expected CtsHolding={0} actual {1}", false, com1.CtsHolding); } // Setup to ensure write will succeed if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = true; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.BaseStream.Write(XOnBuffer, 0, 1); } TCSupport.WaitForTaskCompletion(t); // Verify that the correct number of bytes are in the buffer Assert.Equal(0, com1.BytesToWrite); // Verify that CtsHolding is true if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && !com1.CtsHolding) { Fail("ERROR!!! Expected CtsHolding={0} actual {1}", true, com1.CtsHolding); } } #endregion }
private void Verify_Handshake(Handshake handshake) { using (SerialPort com1 = new SerialPort(TCSupport.LocalMachineSerialInfo.FirstAvailablePortName)) using (SerialPort com2 = new SerialPort(TCSupport.LocalMachineSerialInfo.SecondAvailablePortName)) { AsyncWriteRndStr asyncWriteRndStr = new AsyncWriteRndStr(com1, STRING_SIZE_HANDSHAKE); var t = new Task(asyncWriteRndStr.WriteRndStr); byte[] XOffBuffer = new byte[1]; byte[] XOnBuffer = new byte[1]; XOffBuffer[0] = 19; XOnBuffer[0] = 17; Debug.WriteLine("Verifying Handshake={0}", handshake); com1.Handshake = handshake; com1.Open(); com2.Open(); //Setup to ensure write will bock with type of handshake method being used if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = false; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.Write(XOffBuffer, 0, 1); Thread.Sleep(250); } //Write a random string asynchronously so we can verify some things while the write call is blocking t.Start(); TCSupport.WaitForTaskToStart(t); TCSupport.WaitForExactWriteBufferLoad(com1, STRING_SIZE_HANDSHAKE); //Verify that CtsHolding is false if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && com1.CtsHolding) { Fail("ERROR!!! Expcted CtsHolding={0} actual {1}", false, com1.CtsHolding); } //Setup to ensure write will succeed if (Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.RtsEnable = true; } if (Handshake.XOnXOff == handshake || Handshake.RequestToSendXOnXOff == handshake) { com2.Write(XOnBuffer, 0, 1); } //Wait till write finishes TCSupport.WaitForTaskCompletion(t); //Verify that the correct number of bytes are in the buffer if (0 != com1.BytesToWrite) { Fail("ERROR!!! Expcted BytesToWrite=0 actual {0}", com1.BytesToWrite); } //Verify that CtsHolding is true if the RequestToSend or RequestToSendXOnXOff handshake method is used if ((Handshake.RequestToSend == handshake || Handshake.RequestToSendXOnXOff == handshake) && !com1.CtsHolding) { Fail("ERROR!!! Expcted CtsHolding={0} actual {1}", true, com1.CtsHolding); } } }