First off, read chromatic's
Introduction to Testing article at perl.com if
you already haven't.
You test your interface and make sure that you get the
expected results. Tests for the items that you mentioned
are 'user errors' ... you write validation code for that
instead. While i am sure that is possible to incorporate
such 'contracts' into a test suite ... i am not sure that
they belong there. Probably better is to pass some
function an argument that would cause an illegal division
by 0, and then test that the right error code or message
was returned instead.
jeffa
L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)
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