Perl-Toolchain-Gang/Test-Harness — pull request #3 by markstos (2012-08-17 02:05:42+00:00)
Title: Proof-of-concept for `prove -j 4 --serial-tests=FILE`

It allows you to run *most* tests of a test suite in parallel, while
specifying a file which lists tests which are not yet parallel-safe.

There are no automated tests yet, but it manually tests well enough on the Test::Harness test suite, including all-serial runs, all-parallel runs, and using the new flag for a hybrid serial/parallel run.

What do you think?

Since it doesn't disturb existing functionality, I thought it was a good candidate for sharing an experimental feature that might change or be removed. I imagine there are number of folks like me who would like to take advantage of parallel test runs, but have held back because their test suite is not 100% parallel-ready.