It might be a good idea to have a commit hook or similar to catch these.
You can find candidates for renaming with this command:
$ find tests/phpunit/includes/ -name '*.php' | grep -Ev 'Test.php$' | xargs grep -l MediaWikiTestCase
2011-11-09 23:11:52 +00:00
Renamed from tests/phpunit/includes/GlobalFunctions/wfShorthandToInteger.php (Browse further)