Perl's "testing culture" has put a premium on developing simple, effective ways to test code -- not the least of which for the perl distro itself.
Aside from Test::Simple and Test::More, there are builders and other modules that help exercise your code. I'll go over some quick ways to automate testing, from Object::Exercise to Test::Builder.
Anyone who has testing issues please bring an example.
Meeting starts 4/17/12 (TONIGHT!) @ 6:30.