Thanks I didn't know about that. Of course I used a test suite. But checking that all functions actually exist (in my case some had been renamed) is something you should not have to manually write.
Well, the idea is that your test suite should cover ALL code you have, so you don't have to check all your functions. Devel::Cover helps you by clearly marking code your tests don't run in red, so you know where you need to add tests and don't need to go through manually.
