There are a number of different situations (like testing caching code) where you want to want to do a number of tests, and then verify that some underlying subroutine deep within the code was called a specific number of times. Test::SubCalls provides a number of functions for doing testing in this way in association with your normal Test::More (or similar) test scripts.
WWW: http://search.cpan.org/dist/Test-SubCalls/
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