public void UnicastMessage_PurgeReceiveBuffer()
{
var mock = new Mock <IStreamResource>(MockBehavior.Strict);
IStreamResource serialResource = mock.Object;
var factory = new ModbusFactory();
var transport = new ModbusRtuTransport(serialResource, factory, NullModbusLogger.Instance);
mock.Setup(s => s.DiscardInBuffer());
mock.Setup(s => s.Write(It.IsAny <byte[]>(), 0, 0));
serialResource.DiscardInBuffer();
serialResource.Write(null, 0, 0);
// mangled response
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 4), 0, 4)).Returns(4);
serialResource.DiscardInBuffer();
serialResource.Write(null, 0, 0);
// normal response
var response = new ReadCoilsInputsResponse(ModbusFunctionCodes.ReadCoils, 2, 1, new DiscreteCollection(true, false, true, false, false, false, false, false));
// write request
mock.Setup(s => s.Write(It.Is <byte[]>(x => x.Length == 8), 0, 8));
// read header
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 4), 0, 4))
.Returns((byte[] buf, int offset, int count) =>
{
Array.Copy(response.MessageFrame, 0, buf, 0, 4);
return(4);
});
// read remainder
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 2), 0, 2))
.Returns((byte[] buf, int offset, int count) =>
{
Array.Copy(ModbusUtility.CalculateCrc(response.MessageFrame), 0, buf, 0, 2);
return(2);
});
var request = new ReadCoilsInputsRequest(ModbusFunctionCodes.ReadCoils, 2, 3, 4);
ReadCoilsInputsResponse actualResponse = transport.UnicastMessage <ReadCoilsInputsResponse>(request);
ModbusMessageFixture.AssertModbusMessagePropertiesAreEqual(response, actualResponse);
mock.VerifyAll();
}
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_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();
}
