public void ReadDiscretesInputs()
{
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadInputs, 1, 2, new DiscreteCollection(true, false, true, false, true, false, true, false, true));
ReadCoilsInputsResponse response = ModbusSlave.ReadDiscretes(new ReadCoilsInputsRequest(Modbus.ReadInputs, 1, 1, 9), _testDataStore, _testDataStore.InputDiscretes);
AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
Assert.AreEqual(expectedResponse.ByteCount, response.ByteCount);
}
public void ToString_Coils()
{
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 5, 2,
new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false));
Assert.Equal((string)"Read 11 coils - {1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0}.", (string)response.ToString());
}
internal bool[] ReadDiscretes(byte functionCode, byte slaveAddress, ushort startAddress, ushort numberOfPoints)
{
ReadCoilsInputsRequest request = new ReadCoilsInputsRequest(functionCode, slaveAddress, startAddress, numberOfPoints);
ReadCoilsInputsResponse response = Transport.UnicastMessage <ReadCoilsInputsResponse>(request);
return(response.Data.Slice(0, request.NumberOfPoints).ToArray());
}
internal static ReadCoilsInputsResponse ReadDiscretes(ReadCoilsInputsRequest request, ModbusDataCollection<bool> dataSource)
{
DiscreteCollection data = DataStore.ReadData<DiscreteCollection, bool>(dataSource, request.StartAddress, request.NumberOfPoints);
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(request.FunctionCode, request.SlaveAddress, data.ByteCount, data);
return response;
}
public void CreateModbusMessageReadCoilsResponseWithInvalidDataSize()
{
byte[] frame = { 11, Modbus.ReadCoils, 4, 1, 2, 3 };
ReadCoilsInputsResponse response = ModbusMessageFactory.CreateModbusMessage <ReadCoilsInputsResponse>(frame);
Assert.Fail();
}
public void ProtocolDataUnitReadCoilsResponse()
{
ModbusMessageWithData <DiscreteCollection> message = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 2, new DiscreteCollection(true));
byte[] expectedResult = { 1, 2, 1 };
Assert.AreEqual(expectedResult, message.ProtocolDataUnit);
}
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 ModbusMessageWithDataFixtureCtorInitializesProperties()
{
ModbusMessageWithData <DiscreteCollection> message = new ReadCoilsInputsResponse(Modbus.ReadCoils, 10, 1, new DiscreteCollection(true, false, true));
Assert.AreEqual(Modbus.ReadCoils, message.FunctionCode);
Assert.AreEqual(10, message.SlaveAddress);
}
public void CreateModbusMessageReadCoilsResponseWithNoByteCount()
{
byte[] frame = { 11, Modbus.ReadCoils };
ReadCoilsInputsResponse response = ModbusMessageFactory.CreateModbusMessage <ReadCoilsInputsResponse>(frame);
Assert.Fail();
}
public void CreateModbusMessageReadCoilsResponse()
{
ReadCoilsInputsResponse response = ModbusMessageFactory.CreateModbusMessage<ReadCoilsInputsResponse>(new byte[] { 11, Modbus.ReadCoils, 1, 1 });
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 11, 1, new DiscreteCollection(true, false, false, false));
AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
Assert.AreEqual(expectedResponse.Data.NetworkBytes, response.Data.NetworkBytes);
}
public void UnicastMessage()
{
MockRepository mocks = new MockRepository();
ModbusTransport transport = mocks.PartialMock <ModbusTransport>();
transport.Write(null);
LastCall.IgnoreArguments();
// read 4 coils from slave id 2
Expect.Call(transport.ReadResponse <ReadCoilsInputsResponse>())
.Return(new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1,
new DiscreteCollection(true, false, true, false, false, false, false, false)));
transport.OnValidateResponse(null, null);
LastCall.IgnoreArguments();
mocks.ReplayAll();
ReadCoilsInputsRequest request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 2, 3, 4);
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1,
new DiscreteCollection(true, false, true, false, false, false, false, false));
ReadCoilsInputsResponse response = transport.UnicastMessage <ReadCoilsInputsResponse>(request);
Assert.Equal(expectedResponse.MessageFrame, response.MessageFrame);
mocks.VerifyAll();
}
internal static ReadCoilsInputsResponse ReadDiscretes(ReadCoilsInputsRequest request, DataStore dataStore, ModbusDataCollection <bool> dataSource)
{
DiscreteCollection data = DataStore.ReadData <DiscreteCollection, bool>(dataStore, dataSource, request.StartAddress, request.NumberOfPoints, dataStore.SyncRoot);
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(request.FunctionCode, request.SlaveAddress, data.ByteCount, data);
return(response);
}
public void ToString_Inputs()
{
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(Modbus.ReadInputs, 5, 2,
new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false));
Assert.AreEqual("Read 11 inputs - {1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0}.", response.ToString());
}
public void DataReadCoilsResponse()
{
DiscreteCollection col = new DiscreteCollection(false, true, false, true, false, true, false, false, false, false);
ModbusMessageWithData<DiscreteCollection> message = new ReadCoilsInputsResponse(Modbus.ReadCoils, 11, 1, col);
Assert.AreEqual(col.Count, message.Data.Count);
Assert.AreEqual(col.NetworkBytes, message.Data.NetworkBytes);
}
public void ToString_Inputs()
{
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(Modbus.ReadInputs, 5, 2,
new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false));
Assert.AreEqual("Read 11 inputs - {1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0}.", response.ToString());
}
public void ModbusMessageWithDataFixtureCtorInitializesProperties()
{
AbstractModbusMessageWithData<DiscreteCollection> message = new ReadCoilsInputsResponse(Modbus.ReadCoils, 10, 1,
new DiscreteCollection(true, false, true));
Assert.Equal(Modbus.ReadCoils, message.FunctionCode);
Assert.Equal(10, message.SlaveAddress);
}
public void ProtocolDataUnitReadCoilsResponse()
{
AbstractModbusMessageWithData<DiscreteCollection> message = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 2,
new DiscreteCollection(true));
byte[] expectedResult = {1, 2, 1};
Assert.Equal(expectedResult, message.ProtocolDataUnit);
}
public void DataReadCoilsResponse()
{
DiscreteCollection col = new DiscreteCollection(false, true, false, true, false, true, false, false, false, false);
ModbusMessageWithData <DiscreteCollection> message = new ReadCoilsInputsResponse(Modbus.ReadCoils, 11, 1, col);
Assert.AreEqual(col.Count, message.Data.Count);
Assert.AreEqual(col.NetworkBytes, message.Data.NetworkBytes);
}
public void CreateModbusMessageReadCoilsResponse()
{
ReadCoilsInputsResponse response = ModbusMessageFactory.CreateModbusMessage <ReadCoilsInputsResponse>(new byte[] { 11, Modbus.ReadCoils, 1, 1 });
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 11, 1, new DiscreteCollection(true, false, false, false));
AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
Assert.AreEqual(expectedResponse.Data.NetworkBytes, response.Data.NetworkBytes);
}
public bool[] GetReadInputsResponse(byte[] readBytes, int numberOfPoints, IModbusMessage request)
{
ReadCoilsInputsResponse response = (ReadCoilsInputsResponse)Transport.CreateResponse <ReadCoilsInputsResponse>(readBytes);
Transport.ValidateResponse(request, response);
return(response.Data.Take(numberOfPoints).ToArray());
}
public void ReadDiscretesInputs()
{
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadInputs, 1, 2, new DiscreteCollection(true, false, true, false, true, false, true, false, true));
ReadCoilsInputsResponse response = ModbusSlave.ReadDiscretes(new ReadCoilsInputsRequest(Modbus.ReadInputs, 1, 1, 9), _testDataStore, _testDataStore.InputDiscretes);
AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
Assert.AreEqual(expectedResponse.ByteCount, response.ByteCount);
}
public void ShouldRetryResponse_ReturnsFalse_IfDifferentMessage()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub <IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 2, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
Assert.False(transport.ShouldRetryResponse(request, response));
}
public void CreateReadInputsResponse()
{
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(Modbus.ReadInputs, 5, 2, new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false));
Assert.AreEqual(Modbus.ReadInputs, response.FunctionCode);
Assert.AreEqual(5, response.SlaveAddress);
Assert.AreEqual(2, response.ByteCount);
DiscreteCollection col = new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false);
Assert.AreEqual(col.NetworkBytes, response.Data.NetworkBytes);
}
public void CreateResponse()
{
ModbusAsciiTransport transport = new ModbusAsciiTransport(MockRepository.GenerateStub<IStreamResource>());
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1, new DiscreteCollection(true, false, false, false, false, false, false, true));
byte lrc = ModbusUtility.CalculateLrc(expectedResponse.MessageFrame);
ReadCoilsInputsResponse response = transport.CreateResponse<ReadCoilsInputsResponse>(new byte[] { 2, Modbus.ReadCoils, 1, 129, lrc }) as ReadCoilsInputsResponse;
Assert.IsNotNull(response);
AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
}
public void ShouldRetryResponse_ReturnsFalse_IfDifferentMessage()
{
Mock <ModbusTransport>?mock = new(MockBehavior.Strict) { CallBase = true };
ModbusTransport? transport = mock.Object;
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 2, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
Assert.False(transport.ShouldRetryResponse(request, response));
}
public void CreateResponse()
{
var transport = new ModbusAsciiTransport(StreamResource, new ModbusFactory(), NullModbusLogger.Instance);
var expectedResponse = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 2, 1, new DiscreteCollection(true, false, false, false, false, false, false, true));
byte lrc = ModbusUtility.CalculateLrc(expectedResponse.MessageFrame);
IModbusMessage response = transport.CreateResponse <ReadCoilsInputsResponse>(new byte[] { 2, ModbusFunctionCodes.ReadCoils, 1, 129, lrc });
Assert.IsType <ReadCoilsInputsResponse>(response);
ModbusMessageFixture.AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
}
public void CreateResponse()
{
ModbusAsciiTransport transport = new ModbusAsciiTransport(MockRepository.GenerateStub <IStreamResource>());
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1, new DiscreteCollection(true, false, false, false, false, false, false, true));
byte lrc = ModbusUtility.CalculateLrc(expectedResponse.MessageFrame);
ReadCoilsInputsResponse response = transport.CreateResponse <ReadCoilsInputsResponse>(new byte[] { 2, Modbus.ReadCoils, 1, 129, lrc }) as ReadCoilsInputsResponse;
Assert.IsNotNull(response);
AssertModbusMessagePropertiesAreEqual(expectedResponse, response);
}
public void CreateReadInputsResponse()
{
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(Modbus.ReadInputs, 5, 2, new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false));
Assert.AreEqual(Modbus.ReadInputs, response.FunctionCode);
Assert.AreEqual(5, response.SlaveAddress);
Assert.AreEqual(2, response.ByteCount);
DiscreteCollection col = new DiscreteCollection(true, true, true, true, true, true, false, false, true, true, false);
Assert.AreEqual(col.NetworkBytes, response.Data.NetworkBytes);
}
public void OnShouldRetryResponse_ReturnsFalse_IfThresholdDisabled()
{
var transport = new ModbusIpTransport(StreamResourceMock.Object);
var request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
var response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
request.TransactionId = 5;
response.TransactionId = 4;
transport.RetryOnOldResponseThreshold = 0;
Assert.False(transport.OnShouldRetryResponse(request, response));
}
public void OnShouldRetryResponse_ReturnsFalse_IfOutsideThreshold()
{
var transport = new ModbusIpTransport(StreamResourceMock, new ModbusFactory(), NullModbusLogger.Instance);
var request = new ReadCoilsInputsRequest(ModbusFunctionCodes.ReadCoils, 1, 1, 1);
var response = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 1, 1, null);
request.TransactionId = 5;
response.TransactionId = 2;
transport.RetryOnOldResponseThreshold = 3;
Assert.False(transport.OnShouldRetryResponse(request, response));
}
public void OnShouldRetryResponse_ReturnsFalse_IfOutsideThreshold()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub <IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
request.TransactionId = 5;
response.TransactionId = 2;
transport.RetryOnOldResponseThreshold = 3;
Assert.False(transport.OnShouldRetryResponse(request, response));
}
public void OnShouldRetryResponse_ReturnsFalse_IfOutsideThreshold()
{
var transport = new ModbusIpTransport(StreamResourceMock);
var request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
var response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
request.TransactionId = 5;
response.TransactionId = 2;
transport.RetryOnOldResponseThreshold = 3;
Assert.False((bool)transport.OnShouldRetryResponse(request, response));
}
public void ValidateResponse_RequestAheadOfResponse_RequestsReread()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub <IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 4;
Assert.IsFalse(transport.ValidateResponse(request, response));
}
public void ShouldRetryResponse_ReturnsFalse_IfDifferentMessage()
{
var mock = new Mock <ModbusTransport>(MockBehavior.Strict, new ModbusFactory(), NullModbusLogger.Instance)
{
CallBase = true
};
ModbusTransport transport = mock.Object;
IModbusMessage request = new ReadCoilsInputsRequest(ModbusFunctionCodes.ReadCoils, 2, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 1, 1, null);
Assert.False(transport.ShouldRetryResponse(request, response));
}
public void ValidateResponse_MismatchingTransactionIds()
{
var transport = new ModbusIpTransport(StreamResourceMock, new ModbusFactory(), NullModbusLogger.Instance);
var request = new ReadCoilsInputsRequest(ModbusFunctionCodes.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
var response = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 1, 1, null);
response.TransactionId = 6;
Assert.Throws <IOException>(() => transport.ValidateResponse(request, response));
}
public void ValidateResponse_MismatchingTransactionIds()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub <IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 6;
Assert.Throws <IOException>(() => transport.ValidateResponse(request, response));
}
public void ValidateResponse_MismatchingTransactionIds()
{
var transport = new ModbusIpTransport(StreamResourceMock.Object);
var request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
var response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 6;
Assert.Throws <IOException>(() => transport.ValidateResponse(request, response));
}
public void ValidateResponse()
{
var transport = new ModbusIpTransport(StreamResourceMock, new ModbusFactory(), NullModbusLogger.Instance);
var request = new ReadCoilsInputsRequest(ModbusFunctionCodes.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
var response = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 1, 1, null);
response.TransactionId = 5;
// no exception is thrown
transport.ValidateResponse(request, response);
}
public void ValidateResponse()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub <IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 5;
// no exception is thrown
transport.ValidateResponse(request, response);
}
public void UnicastMessage_PurgeReceiveBuffer()
{
MockRepository mocks = new MockRepository();
IStreamResource serialResource = mocks.StrictMock<IStreamResource>();
ModbusSerialTransport transport = new ModbusRtuTransport(serialResource);
serialResource.DiscardInBuffer();
serialResource.Write(null, 0, 0);
LastCall.IgnoreArguments();
// mangled response
Expect.Call(serialResource.Read(new byte[] {0, 0, 0, 0}, 0, 4)).Return(4);
serialResource.DiscardInBuffer();
serialResource.Write(null, 0, 0);
LastCall.IgnoreArguments();
// normal response
ReadCoilsInputsResponse response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1,
new DiscreteCollection(true, false, true, false, false, false, false, false));
// read header
Expect.Call(serialResource.Read(new byte[] {0, 0, 0, 0}, 0, 4))
.Do(((Func<byte[], int, int, int>) delegate(byte[] buf, int offset, int count)
{
Array.Copy(response.MessageFrame, 0, buf, 0, 4);
return 4;
}));
// read remainder
Expect.Call(serialResource.Read(new byte[] {0, 0}, 0, 2))
.Do(((Func<byte[], int, int, int>) delegate(byte[] buf, int offset, int count)
{
Array.Copy(ModbusUtility.CalculateCrc(response.MessageFrame), 0, buf, 0, 2);
return 2;
}));
mocks.ReplayAll();
ReadCoilsInputsRequest request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 2, 3, 4);
transport.UnicastMessage<ReadCoilsInputsResponse>(request);
mocks.VerifyAll();
}
public void UnicastMessage()
{
MockRepository mocks = new MockRepository();
ModbusTransport transport = mocks.PartialMock<ModbusTransport>();
transport.Write(null);
LastCall.IgnoreArguments();
// read 4 coils from slave id 2
Expect.Call(transport.ReadResponse<ReadCoilsInputsResponse>())
.Return(new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1, new DiscreteCollection(true, false, true, false, false, false, false, false)));
transport.OnValidateResponse(null, null);
LastCall.IgnoreArguments();
mocks.ReplayAll();
ReadCoilsInputsRequest request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 2, 3, 4);
ReadCoilsInputsResponse expectedResponse = new ReadCoilsInputsResponse(Modbus.ReadCoils, 2, 1, new DiscreteCollection(true, false, true, false, false, false, false, false));
ReadCoilsInputsResponse response = transport.UnicastMessage<ReadCoilsInputsResponse>(request);
Assert.AreEqual(expectedResponse.MessageFrame, response.MessageFrame);
mocks.VerifyAll();
}
public void ValidateResponse_MismatchingTransactionIds()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub<IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 6;
Assert.Throws<IOException>(() => transport.ValidateResponse(request, response));
}
public void ValidateResponse()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub<IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 5;
// no exception is thrown
transport.ValidateResponse(request, response);
}
public void ValidateResponse_CallsOnValidateResponse()
{
MockRepository mocks = new MockRepository();
ModbusTransport transport = mocks.PartialMock<ModbusTransport>();
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
Expect.Call(transport.OnValidateResponse(request, response))
.Return(true);
mocks.ReplayAll();
transport.ValidateResponse(request, response);
mocks.VerifyAll();
}
public void ShouldRetryResponse_ReturnsFalse_IfDifferentMessage()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub<IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 2, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
Assert.False(transport.ShouldRetryResponse(request, response));
}
public void ValidateResponse_RequestAheadOfResponse_RequestsReread()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub<IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 4;
Assert.IsFalse(transport.ValidateResponse(request, response));
}
public void ValidateResponse_PassesWithMatchingTransactionDetails()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub<IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
request.TransactionId = 5;
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
response.TransactionId = 5;
// no exception is thrown, and return true
Assert.IsTrue(transport.ValidateResponse(request, response));
}
public void ValidateResponse()
{
MockRepository mocks = new MockRepository();
ModbusTransport transport = mocks.PartialMock<ModbusTransport>();
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
transport.OnValidateResponse(null, null);
LastCall.IgnoreArguments();
mocks.ReplayAll();
transport.ValidateResponse(request, response);
mocks.VerifyAll();
}
public void OnShouldRetryResponse_ReturnsFalse_IfOutsideThreshold()
{
ModbusIpTransport transport = new ModbusIpTransport(MockRepository.GenerateStub<IStreamResource>());
IModbusMessage request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 1);
IModbusMessage response = new ReadCoilsInputsResponse(Modbus.ReadCoils, 1, 1, null);
request.TransactionId = 5;
response.TransactionId = 2;
transport.RetryOnOldResponseThreshold = 3;
Assert.False(transport.OnShouldRetryResponse(request, response));
}
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();
}