But you really want to learn how to write tests with Apache::Test if you do any serious mod_perl development, so there is no excuse not to learn Apache::Test, not talking about the fact that there are hundreds of existing tests as examples, the tutorial http://perl.apache.org/docs/general/testing/testing.html and the slowly growing manpages.
not to mention
http://www.perl.com/pub/a/2003/05/22/testing.html
from which I quote:
"Secretly, I'm hoping that Apache-Test becomes so popular that end-users start wrapping their bug reports up in little, self-contained, Apache-Test-based tarballs so anyone can reproduce the problem."
--Geoff