public void ReadRequestResponse()
{
Mock <IStreamResource>?mock = new(MockBehavior.Strict);
ReadCoilsInputsRequest?request = new(Modbus.ReadCoils, 1, 1, 3);
int calls = 0;
byte[][] source =
{
new byte[] { 45, 63, 0, 0, 0, 6 },
new byte[] { 1 }.Concat(request.ProtocolDataUnit).ToArray()
};
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 6), 0, 6))
.Returns((byte[] buf, int offset, int count) =>
{
Array.Copy(source[calls++], buf, 6);
return(6);
});
Assert.Equal(
new byte[] { 45, 63, 0, 0, 0, 6, 1, 1, 0, 1, 0, 3 },
ModbusIpTransport.ReadRequestResponse(mock.Object));
mock.VerifyAll();
}
public void ReadRequestResponse()
{
MockRepository mocks = new MockRepository();
var mockTransport = mocks.StrictMock <IStreamResource>(null);
byte[] mbapHeader = { 45, 63, 0, 0, 0, 6 };
Expect.Call(mockTransport.Read(new byte[6], 0, 6))
.Do(((Func <byte[], int, int, int>) delegate(byte[] buf, int offset, int count)
{
Array.Copy(mbapHeader, buf, 6);
return(6);
}));
ReadCoilsInputsRequest request = new ReadCoilsInputsRequest(Modbus.ReadCoils, 1, 1, 3);
Expect.Call(mockTransport.Read(new byte[6], 0, 6))
.Do(((Func <byte[], int, int, int>) delegate(byte[] buf, int offset, int count)
{
Array.Copy(new byte[] { 1 }.Concat(request.ProtocolDataUnit).ToArray(), buf, 6);
return(6);
}));
mocks.ReplayAll();
Assert.Equal(ModbusIpTransport.ReadRequestResponse(mockTransport),
new byte[] { 45, 63, 0, 0, 0, 6, 1, 1, 0, 1, 0, 3 });
mocks.VerifyAll();
}
public void ReadRequestResponse_ConnectionAbortedWhileReadingMBAPHeader()
{
Mock <IStreamResource>?mock = new(MockBehavior.Strict);
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 6), 0, 6)).Returns(3);
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 6), 3, 3)).Returns(0);
Assert.Throws <IOException>(() => ModbusIpTransport.ReadRequestResponse(mock.Object));
mock.VerifyAll();
}
public void ReadRequestResponse_ConnectionAbortedWhileReadingMBAPHeader()
{
MockRepository mocks = new MockRepository();
var mockTransport = mocks.StrictMock <IStreamResource>(null);
Expect.Call(mockTransport.Read(new byte[6], 0, 6)).Return(0);
mocks.ReplayAll();
Assert.Throws <IOException>(() => ModbusIpTransport.ReadRequestResponse(mockTransport));
mocks.VerifyAll();
}
public void ReadRequestResponse_ConnectionAbortedWhileReadingMessageFrame()
{
var mock = new Mock <IStreamResource>(MockBehavior.Strict);
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 6), 0, 6)).Returns(6);
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 6), 0, 6)).Returns(3);
mock.Setup(s => s.Read(It.Is <byte[]>(x => x.Length == 6), 3, 3)).Returns(0);
Assert.Throws <IOException>(() => ModbusIpTransport.ReadRequestResponse(mock.Object, NullModbusLogger.Instance));
mock.VerifyAll();
}
public void ReadRequestResponse_ConnectionAbortedWhileReadingMessageFrame()
{
MockRepository mocks = new MockRepository();
var mockTransport = mocks.StrictMock <IStreamResource>(null);
byte[] mbapHeader = { 45, 63, 0, 0, 0, 6 };
Expect.Call(mockTransport.Read(new byte[6], 0, 6)).Do(((Func <byte[], int, int, int>) delegate(byte[] buf, int offset, int count)
{
Array.Copy(mbapHeader, buf, 6);
return(6);
}));
Expect.Call(mockTransport.Read(new byte[6], 0, 6)).Return(0);
mocks.ReplayAll();
ModbusIpTransport.ReadRequestResponse(mockTransport);
mocks.VerifyAll();
}
