From Fedora Project Wiki
Test case for crontabs
Create directory containing executable files (755), with some file for reading (644) and some file which is filtered: *.{rpmsave,rpmorig,rpmnew,swp,cfsaved}
run-parts --test your_directory - will list files, which would be executed
run-parts --list your_directory - will list all files, which are not filtered
run-parts still should work for cron.daily. It means you should check whether cron.daily runs in /var/log/cron after update. It runs only once a day, so it's possible that it run before your update.
(Automatic regression tests are in progress).
