[TestMethod] // Oficial Example
public void ReadHoldingRegistersPDU_DocSampleReq()
{
var PDU = new ReadHoldingRegistersPDU(107, 3);
var ExpectedReq = new byte[]
{
0x03, // Function Code
0x00, // Starting Address Hi
0x6B, // Starting Address Lo
0x00, // Quantity of Inputs Hi
0x03, // Quantity of Inputs Lo
};
var ActualReq = PDU.BuildRequest();
CollectionAssert.AreEqual(ExpectedReq, ActualReq, "Wrong Request");
}
[TestMethod] // Handling Request on Server
public void ReadHoldingRegistersPDU_LifeCycle()
{
var RandomGen = new Random();
int Address = RandomGen.Next(MinAddress, MaxAddress);
int Quantity = RandomGen.Next(MinQuantity, MaxQuantity);
#region Build Server and Values
var Server = new BaseModbusServer();
var Values = new int[Quantity];
for (int i = 0; i < Quantity; i++)
{
Values[i] = RandomGen.Next(0xFFFF);
Server.AddHoldingRegister(Address + i, Values[i]);
}
#endregion
var ClientPDU = new ReadHoldingRegistersPDU(Address, Quantity);
var Request = ClientPDU.BuildRequest();
var ServerPDU = new ReadHoldingRegistersPDU();
var ReqStatus = ServerPDU.CheckRequest(Request);
Assert.AreEqual(Status.OK, ReqStatus, "Recognition Error");
Assert.AreEqual(Address, ServerPDU.StartingAddress, "Whong Address recognition in CheckRequest");
Assert.AreEqual(Quantity, ServerPDU.Quantity, "Whong Quantity recognition in CheckRequest");
ServerPDU.Handle(Server);
CollectionAssert.AreEqual(Values, ServerPDU.Value, "Whong Address recognition in CheckRequest");
ClientPDU.CheckResponse(ServerPDU.BuildResponse());
CollectionAssert.AreEqual(Values, ClientPDU.Value, "Whong Address recognition in CheckRequest");
}