> I needed to run multiple tests in the same directory quite
> often. I name the test classes like
>
>   class TestMyClass < RUNIT::TestCase
>
> and the files incorporating test classes like
> test_myclass.rb. Additionally I like to get only one report how
> the tests went.

RubyUnit comes with a runtest.rb that can take multiple test files as an
argument.  I think this should do what you want.  Just create a shell script
that calls runtest.rb and passes it test_*.rb as an argument.

peace,
aaron