public void ReadResponse()
{
MockRepository mocks = new MockRepository();
ModbusRtuTransport transport =
mocks.PartialMock <ModbusRtuTransport>(MockRepository.GenerateStub <IStreamResource>());
Expect.Call(transport.Read(ModbusRtuTransport.ResponseFrameStartLength))
.Return(new byte[] { 1, 1, 1, 0 });
Expect.Call(transport.Read(2))
.Return(new byte[] { 81, 136 });
mocks.ReplayAll();
ReadCoilsInputsResponse response =
transport.ReadResponse <ReadCoilsInputsResponse>() as ReadCoilsInputsResponse;
Assert.IsNotNull(response);
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1,
new DiscreteCollection(false));
Assert.AreEqual(response.MessageFrame, expectedResponse.MessageFrame);
mocks.VerifyAll();
}
public void ReadResponseSlaveException()
{
var factory = new ModbusFactory();
var mock = new Mock <ModbusRtuTransport>(StreamResource, factory, NullModbusLogger.Instance)
{
CallBase = true
};
ModbusRtuTransport transport = mock.Object;
byte[] messageFrame = { 0x01, 0x81, 0x02 };
byte[] crc = ModbusUtility.CalculateCrc(messageFrame);
mock.Setup(t => t.Read(ModbusRtuTransport.ResponseFrameStartLength))
.Returns(Enumerable.Concat(messageFrame, new byte[] { crc[0] }).ToArray());
mock.Setup(t => t.Read(1))
.Returns(new byte[] { crc[1] });
IModbusMessage response = transport.ReadResponse <ReadCoilsInputsResponse>();
Assert.IsType <SlaveExceptionResponse>(response);
var expectedResponse = new SlaveExceptionResponse(0x01, 0x81, 0x02);
Assert.Equal(expectedResponse.MessageFrame, response.MessageFrame);
mock.VerifyAll();
}
public void ReadResponseSlaveException()
{
MockRepository mocks = new MockRepository();
ModbusRtuTransport transport = mocks.PartialMock <ModbusRtuTransport>(MockRepository.GenerateStub <IStreamResource>());
byte[] messageFrame = { 0x01, 0x81, 0x02 };
byte[] crc = ModbusUtility.CalculateCrc(messageFrame);
Expect.Call(transport.Read(ModbusRtuTransport.ResponseFrameStartLength))
.Return(messageFrame.Concat(SequenceUtility.ToSequence(crc[0])).ToArray());
Expect.Call(transport.Read(1))
.Return(new byte[] { crc[1] });
mocks.ReplayAll();
Assert.IsTrue(transport.ReadResponse <ReadCoilsInputsResponse>() is SlaveExceptionResponse);
mocks.VerifyAll();
}
public void ReadResponseSlaveExceptionWithErroneousLrc()
{
MockRepository mocks = new MockRepository();
ModbusRtuTransport transport = mocks.PartialMock <ModbusRtuTransport>(MockRepository.GenerateStub <IStreamResource>());
byte[] messageFrame = { 0x01, 0x81, 0x02 };
// invalid crc
byte[] crc = { 0x9, 0x9 };
Expect.Call(transport.Read(ModbusRtuTransport.ResponseFrameStartLength))
.Return(messageFrame.Concat(crc[0].ToSequence()).ToArray());
Expect.Call(transport.Read(1))
.Return(new byte[] { crc[1] });
mocks.ReplayAll();
transport.ReadResponse <ReadCoilsInputsResponse>();
mocks.VerifyAll();
}
public void ReadResponse()
{
var factory = new ModbusFactory();
var mock = new Mock <ModbusRtuTransport>(StreamResource, factory, NullModbusLogger.Instance)
{
CallBase = true
};
ModbusRtuTransport transport = mock.Object;
mock.Setup(t => t.Read(ModbusRtuTransport.ResponseFrameStartLength)).Returns(new byte[] { 1, 1, 1, 0 });
mock.Setup(t => t.Read(2)).Returns(new byte[] { 81, 136 });
IModbusMessage response = transport.ReadResponse <ReadCoilsInputsResponse>();
Assert.IsType <ReadCoilsInputsResponse>(response);
var expectedResponse = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 1, 1, new DiscreteCollection(false));
Assert.Equal(expectedResponse.MessageFrame, response.MessageFrame);
mock.VerifyAll();
}
public void ReadResponseSlaveExceptionWithErroneousLrc()
{
var factory = new ModbusFactory();
var mock = new Mock <ModbusRtuTransport>(StreamResource, factory, NullModbusLogger.Instance)
{
CallBase = true
};
ModbusRtuTransport transport = mock.Object;
byte[] messageFrame = { 0x01, 0x81, 0x02 };
// invalid crc
byte[] crc = { 0x9, 0x9 };
mock.Setup(t => t.Read(ModbusRtuTransport.ResponseFrameStartLength))
.Returns(Enumerable.Concat(messageFrame, new byte[] { crc[0] }).ToArray());
mock.Setup(t => t.Read(1))
.Returns(new byte[] { crc[1] });
Assert.Throws <IOException>(() => transport.ReadResponse <ReadCoilsInputsResponse>());
mock.VerifyAll();
}
