Feature Request: Use TcUnit without extending TcUnit.Fb_TestSuite

[RGrabichler]

I use the TcOpen Framework.
Therefore i have the TcoContect, where my MainStation, a TcoObject runs.
The FB i want to test derives from a TcoComponent.
I created a Library for this RfidHead-Compoonent and now i want to test it.
In TcUnit i have to create a FB which extends the TcUint.Fb_TestSuite, but i cannot inherit from two different Classes.
So how can i solve this.

This would be the TestSuite with the TestMethods.

Thanks for Advices

[sagatowski]

This is not a feature request. This would break the current API for TcUnit. Regarding the other question, I will transfer this to discussions.

[RGrabichler]

Is there any Workaround, how to solve this?

[RGrabichler]

I think the Solution from Peter is perfect, so no changes required! thanks Jakob (btw to tryout testing is inspired by your series :D)

[PTKu]

Hi,

here is a possible solution/workaround.

You will need to inherit from TcUnit.Fb_TestSuite block and implement TcoCore.ITcoContext interface

FUNCTION_BLOCK TcUnitContext EXTENDS TcUnit.Fb_TestSuite IMPLEMENTS TcoCore.ITcoContext
VAR
	_nfContext : TcoCore.TcoContextNfCompatibility;
END_VAR

TcoCore.TcoContextNfCompatibility is a class that allows to use TcOpen components in a non TcOpen framewok application.

You will also need to implement members of TcoCore.ITcoContext.

Where in all getters you will need to return values from the instance of _nfContext

Context := THIS^._nfContext;

EndCycleCount := THIS^._nfContext._endCycleCount;

Environment := THIS^._nfContext._settings;

Identity :=  THIS^._nfContext._Identity;

Logger := THIS^._nfContext._logger;

RealTimeClock := THIS^._nfContext._rtc;

StartCycleCount := THIS^._nfContext._startCycleCount;

If you want to perform cyclic calls on you components you will need to place the call like this:

_nfContext.VolatileOpen();

// ALL YOUR CYCLIC CALL SHOUD BE BETRWEEB THESE TWO METHODS.

_nfContext.VolatileClose();

[RGrabichler]

Thanks alot Peter, as always genious!
I thought about Interfaces, but would never been able alone to accomplish it.

Now it works like a charm! Perfect

[rruiter87]

One extra thing needs to be added:

1. Implement the Main() method for the TcUnitContext
2. In Main() call _mainStation();

[sagatowski]

Thanks @PTKu! You're (as always) the best.