Is there a way to incorporate Fitnesse into C++ code?

Question

I'm trying to use Fitnesse to interface with some C++ code, but the Fit Cpp project file provided on the fitnesse.org website doesn't work (it's VC++ 6 which I don't have but I do have Visual Studio 2005 and 2008). I can't even seem to open the solution file in VS2005 or VS2008 (maybe because it was created in VC++ 6?).

Has anyone been able to get this working? Is there a way I can write a test fixture in C# that communicates with the C++ code? If so, how do I go about doing this.

Here is the website with the code: http://fitnesse.org/FrontPage.FitServers.CppFit.CppTestTools.SetUpCppTestTools

Ideally, I would like to be able to work on this in Visual Studio and avoid cygwin. Should I just bite the bullet and go with cygwin ... not sure that will even work either ... haven't tried.

Any help will be much appreciated. Thanks in advance.

Answer 1

Using C++/CLI is one option. That way you can use fitSharp as the bridge from FitNesse to your fixture code, but your fixture code can call directly into C++.

Here's a simple example of testing a Calculator class. First, here's the C++ code we want to test:

class Calculator
{
  public:
    int Add(int x, int y)
    {
      return x + y;
    }
};

and here's the C++/CLI fixture code:

public ref class CalculatorFixture
{
  public:
    property int X;
    property int Y;
    property int Z;

    void Execute()
    {
      Calculator calculator;
      Z = calculator.Add(X,Y);
    }
};

The FitNesse wiki page would look like this:

!define TEST_SYSTEM {slim}
!define COMMAND_PATTERN {%m -r fitSharp.Slim.Service.Runner,C:\fitnesse\fitsharp\fitsharp.dll %p}
!define TEST_RUNNER {C:\fitnesse\fitsharp\Runner.exe}

!path c:\CalculatorFixture.dll

!|CalculatorFixture|
|X         |Y         |Z?        |
|2         |2         |4         |
|3         |4         |7         |

One issue to watch out for is that C++/CLI DLLs are generally either 32-bit or 64-bit, whereas the fitSharp runner is 'any cpu'. So if you build your C++/CLI DLL as 32-bit and try to use fitSharp with it on a 64-bit OS, you'll get an 'incorrect format' error. In that case either build the C++/CLI DLL as 64-bit, or use corflags to force the fitsharp runner (Runner.exe) to be 32-bit.