Perl module to test that modules export the right symbols

 Test::Exports provides simple test functions for testing other modules
 "import" methods. Testing is currently limited to checking which subs have been
 imported.
 .
 In order to keep different calls to ->import separate, Test::Exports performs
 these calls from a private package. The symbol-testing functions then test
 whether or not symbols are present in this private package, ensuring none of
 this interferes with your test script itself.