+- the `HUnit <http://hunit.sourceforge.net/>`_ library (tested with
+ 1.2.x)
+- the `test-framework
+ <http://batterseapower.github.com/test-framework/>`_ libraries,
+ tested versions: ``test-framework``: 0.6, ``test-framework-hunit``:
+ 0.2.7, ``test-framework-quickcheck2``: 0.2.12