A certain Mr Schwern has a little too much money and a certain set of libraries is lacking slightly by not being tested. Yesterday I made moves to correct this situation by writing a few tests for File::Compare. Alas at the time of writing the patch mail hasn't reached p5p, but this can't be helped.
On a more worrying note, I've also scratched up a few tests for Quantum::Entanglement. It's really not easy finding ways to ensure that a module which rests on rand() is working correctly.