public void DecodeMessage_OneMessageDifferentStream()
{
byte controllerID = 0x01;
byte msgID = 0x34;
byte cmd = (byte)Command.GetVersion;
byte[] commandData = new byte[] { 0x49, 0x03, 0x92, 0x96, 0x00 };
byte[] inputData = new byte[] { 0x00, controllerID, msgID, cmd, 0x00, 0x00 };
List <byte> dataList = inputData.ToList();
dataList.InsertRange(4, commandData);
inputData = dataList.ToArray();
inputData[inputData.Length - 2] = MessageCodec.CalculateCRC(inputData);
inputData[0] = STX;
inputData[inputData.Length - 1] = ETX;
List <ProtocolMessage> myMsgs = new List <ProtocolMessage>();
MessageCodec.DecodeMessages(inputData.Take(4).ToArray(), out List <ProtocolMessage> msgs, out byte[] outputRemainder);
myMsgs.AddRange(msgs);
MessageCodec.DecodeMessages(inputData.Skip(4).ToArray(), out List <ProtocolMessage> msgs2, out byte[] outputRemainder2, outputRemainder);
myMsgs.AddRange(msgs2);
Assert.IsTrue(myMsgs.Count == 1);
foreach (ProtocolMessage msg in myMsgs)
{
Assert.AreEqual(msg.ControllerID, controllerID);
Assert.AreEqual(msg.MsgID, msgID);
Assert.AreEqual((byte)msg.Command, cmd);
CollectionAssert.AreEqual(commandData, msg.CommandData);
}
CollectionAssert.AreEqual(inputData.Take(4).ToArray(), outputRemainder);
CollectionAssert.AreEqual(new byte[0], outputRemainder2);
}
public void DecodeMessage_MultipleEscapeCharactersEndingIn_f_x5()
{
byte controllerID = 0x01;
byte msgID = 0x90;
Command cmd = Command.DebugString;
byte[] commandData = Encoding.UTF8.GetBytes("fffff");
byte[] expectedMsg = new byte[] { 0x00, controllerID, msgID, (byte)cmd,
0x66, 0x00, 0x66, 0x00, 0x66, 0x00, 0x66, 0x00, 0x66, 0x00,
0x00, 0x00 };
byte[] expectedMsgNotEscaped = new byte[] { 0x00, controllerID, msgID, (byte)cmd,
0x66, 0x66, 0x66, 0x66, 0x66,
0x00, 0x00 };
expectedMsg[expectedMsg.Length - 2] = MessageCodec.CalculateCRC(expectedMsgNotEscaped);
expectedMsg[expectedMsg.Length - 1] = ETX;
expectedMsg[0] = STX;
byte[] msg = MessageCodec.EncodeMessage(new ProtocolMessage(controllerID, msgID, cmd, commandData));
MessageCodec.DecodeMessages(msg, out List <ProtocolMessage> msgs, out byte[] outputRemainder);
ProtocolMessage myMessage = msgs.First();
Assert.AreEqual(expectedMsg.Length, msg.Length);
CollectionAssert.AreEqual(expectedMsg, msg);
CollectionAssert.AreEqual(commandData, myMessage.CommandData);
}
public void DecodeMessage_TwoMessagesSameStream_GarbageInBetween()
{
byte controllerID = 0x01;
byte msgID = 0x34;
byte cmd = (byte)Command.GetVersion;
byte[] commandData = new byte[] { 0x49, 0x03, 0x92, 0x96, 0x00 };
byte[] inputData = new byte[] { 0x00, controllerID, msgID, cmd, 0x00, 0x00 };
List <byte> dataList = inputData.ToList();
dataList.InsertRange(4, commandData);
inputData = dataList.ToArray();
inputData[inputData.Length - 2] = MessageCodec.CalculateCRC(inputData);
inputData[0] = STX;
inputData[inputData.Length - 1] = ETX;
dataList = inputData.ToList();
dataList.AddRange(new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF });
dataList.AddRange(inputData);
inputData = dataList.ToArray();
MessageCodec.DecodeMessages(inputData, out List <ProtocolMessage> msgs, out byte[] outputRemainder);
Assert.IsTrue(msgs.Count == 2);
foreach (ProtocolMessage msg in msgs)
{
Assert.AreEqual(msg.ControllerID, controllerID);
Assert.AreEqual(msg.MsgID, msgID);
Assert.AreEqual((byte)msg.Command, cmd);
CollectionAssert.AreEqual(commandData, msg.CommandData);
}
CollectionAssert.AreEqual(new byte[0], outputRemainder);
}
public void DecodeMessage_OneMessageCommandNoData_Remainder()
{
byte controllerID = 0x01;
byte msgID = 0x34;
byte cmd = (byte)Command.GetVersion;
byte[] commandData = new byte[0];
byte[] inputData = new byte[] { 0x00, controllerID, msgID, cmd, 0x00, 0x00 };
List <byte> dataList = inputData.ToList();
dataList.InsertRange(4, commandData);
inputData = dataList.ToArray();
inputData[inputData.Length - 2] = MessageCodec.CalculateCRC(inputData);
inputData[0] = STX;
inputData[inputData.Length - 1] = ETX;
dataList = inputData.ToList();
dataList.AddRange(new byte[] { 0xFF, 0xFF, 0xFF, 0xFF });
inputData = dataList.ToArray();
MessageCodec.DecodeMessages(inputData, out List <ProtocolMessage> msgs, out byte[] outputRemainder);
Assert.IsTrue(msgs.Count == 1);
ProtocolMessage msg = msgs.First();
Assert.AreEqual(msg.ControllerID, controllerID);
Assert.AreEqual(msg.MsgID, msgID);
Assert.AreEqual((byte)msg.Command, cmd);
CollectionAssert.AreEqual(commandData, msg.CommandData);
CollectionAssert.AreEqual(new byte[] { 0xFF, 0xFF, 0xFF, 0xFF }, outputRemainder);
}
public void DecodeMessage_DecodeEncodedMessageDataEscaped()
{
ProtocolMessage msg = new ProtocolMessage(STX, 0x02, Command.ConfigChannel, new byte[] { ESC, STX, ETX });
byte[] encodedMsg = MessageCodec.EncodeMessage(msg);
MessageCodec.DecodeMessages(encodedMsg, out List <ProtocolMessage> msgs, out byte[] remainder);
Assert.IsTrue(msgs.Count == 1);
Assert.IsTrue(remainder.Length == 0);
Assert.AreEqual(msg.ControllerID, msgs.First().ControllerID);
Assert.AreEqual(msg.MsgID, msgs.First().MsgID);
Assert.AreEqual(msg.Command, msgs.First().Command);
CollectionAssert.AreEqual(msg.CommandData, msgs.First().CommandData);
}
protected void ReceiveMessage(BytesReceivedEventArgs e)
{
MessageCodec.DecodeMessages(e.Message, out List <ProtocolMessage> messages, out this.remainderBytes, this.remainderBytes);
foreach (ProtocolMessage protocolMessage in messages)
{
switch (protocolMessage.Command)
{
case Command.GetVersion:
this.DispatchVersionMessage(protocolMessage);
break;
case Command.GetInfo:
break;
case Command.WriteRegister:
break;
case Command.QueryRegister:
this.DispatchQueryRegisterMessage(protocolMessage);
break;
case Command.ConfigChannel:
break;
case Command.Decimation:
break;
case Command.ResetTime:
break;
case Command.ReadChannelData:
DispatchReadChannelDataMessage(protocolMessage);
break;
case Command.DebugString:
break;
case Command.EmbeddedConfiguration:
break;
case Command.Tracing:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
public void DecodeMessage_OneMessage_UnexpectedSTX()
{
byte controllerID = 0x01;
byte msgID = 0x34;
byte cmd = (byte)Command.GetVersion;
byte[] commandData = new byte[] { 0x49, STX, 0x67, 0x96, 0x00 };
byte[] inputData = new byte[] { 0x00, controllerID, msgID, cmd, 0x00, 0x00 };
List <byte> dataList = inputData.ToList();
dataList.InsertRange(4, commandData);
inputData = dataList.ToArray();
inputData[inputData.Length - 2] = MessageCodec.CalculateCRC(inputData);
inputData[0] = STX;
inputData[inputData.Length - 1] = ETX;
MessageCodec.DecodeMessages(inputData, out List <ProtocolMessage> msgs, out byte[] outputRemainder);
Assert.IsFalse(msgs.First().Valid);
}
public void DecodeMessage_OneMessageNoCommandData_NoRemainder()
{
byte controllerID = 0x01;
byte msgID = 0x34;
byte cmd = (byte)Command.GetVersion;
byte[] inputData = new byte[] { 0x00, controllerID, msgID, cmd, 0x00, 0x00 };
inputData[inputData.Length - 2] = MessageCodec.CalculateCRC(inputData);
inputData[0] = STX;
inputData[inputData.Length - 1] = ETX;
MessageCodec.DecodeMessages(inputData, out List <ProtocolMessage> msgs, out byte[] outputRemainder);
Assert.IsTrue(msgs.Count == 1);
ProtocolMessage msg = msgs.First();
Assert.AreEqual(msg.ControllerID, controllerID);
Assert.AreEqual(msg.MsgID, msgID);
Assert.AreEqual((byte)msg.Command, cmd);
CollectionAssert.AreEqual(new byte[0], outputRemainder);
}
public void EncodeMessage_EncodeDecodedMessage_NormalData()
{
byte controllerID = 0x01;
byte msgID = 0x34;
byte cmd = (byte)Command.GetVersion;
byte[] commandData = new byte[] { 0x49, 0x05, 0x67, 0x96, 0x00 };
byte[] inputData = new byte[] { 0x00, controllerID, msgID, cmd, 0x00, 0x00 };
List <byte> dataList = inputData.ToList();
dataList.InsertRange(4, commandData);
inputData = dataList.ToArray();
inputData[inputData.Length - 2] = MessageCodec.CalculateCRC(inputData);
inputData[0] = STX;
inputData[inputData.Length - 1] = ETX;
MessageCodec.DecodeMessages(inputData, out List <ProtocolMessage> msgs, out byte[] remainder);
byte[] msg = MessageCodec.EncodeMessage(msgs.First());
Assert.IsTrue(msgs.Count == 1);
Assert.IsTrue(remainder.Length == 0);
CollectionAssert.AreEqual(inputData, msg);
}