If you know the test will hang, don't run it, make it an author-only-extra-test , see Test::XT

The cpan testers will probably run this test with a timeout. See http://wiki.cpantesters.org/wiki/CPANReporterSmokerLong, command_timeout,

A crash is fine :)

Remember perlport

On the other hand, just what is this module of yours you're asking about? Maybe you simply shouldn't release it at all ( see opinions on Win32::Process::Hide )?