How can I run Perl test suite automatically when files change?

Question

Is there a tool that would watch file changes in a directory tree of a Perl application and re-run the test suite every time I save changes to some module? Something akin to

Answer 1

The basic way to do this is through source control and an continuous integration package, say, like Smolder. When you check in files, the CI server notices the changes and runs the test suite for you.

Many CI products collect cross-run information for you and can show you trends in your tests, test cover, and so on.