> But you will have tested it with RubyUnit by then.... :-)  My 
> docs for it in English are at:
> http://www.eng.cse.dmu.ac.uk/~hgs/ruby/ruby-unit.html

Very nice docs!

I might comment that I like to separate test classes to separate files (and
even directories) as it makes easier to deliver production code packages,
and separates them from development versions.

Another point is, that since 0.2.x where I guess x > 3, the RubyUnit package
has included a script called c2t.rb, which creates the skeleton for a test
class for you. It does not handle many different cases, but works very well
for simple cases. And never again you have to copy the code defined in 'if
__FILE__ == $0'.

	- Aleksi