If your Test Case is a package whose goal is to test all aspects of a particular class then a Test Suite is something which kicks off a collection of related Test Cases. As with most things in Perl’s Test::Unit it’s really easy to do and also terribly documented. So, without further ado… You need something to kick off all your tests: use Test::Unit::HarnessUnit; use My::Test::Suite::Package; my $testrunner = Test::Unit::HarnessUnit->new(); $testrunner->start("My::Test::Suite::Package"); Next you need the test suite it’s going to kick off: