FitNesse. UserGuide.
MultiLanguageFitNesse [add child]
It is possible to set up a FitNesse page the will run all tests in a different language.

The languages currently supported are:

There are few componenets needed to support other languages:
  1. An implementation of FIT for the desired language.
  2. An implementation of FitServer - a program that couples FIT to FitNesse.
  3. The variables listed in CustomizingTestExecution should be set accordingly.

When ever you run a test where the special variables are in scope, the execution will be performed in the designated language.