What We've Accomplished We have a CPAN-style module (we don't actually need to distribute it on the CPAN...) We have an automated test suite It feels good to watch those ok's scroll by! Benefits of tests: confidence - we can hack code and know immediately if we have broken something more fun to hack code without fear! tests are like a checksum for the code can save you time: Coding takes longer, but debugging is faster And revisiting old but well-tested code is much faster