use Test::YAML(); BEGIN { @Test::YAML::EXPORT = grep { not /^(Dump|Load)(File)?$/ } @Test::YAML::EXPORT; } use t::TestYAMLOld tests => 3; use YAML::Old; ok defined(&Dump), 'Dump() is exported'; ok defined(&Load), 'Load() is exported'; ok not(defined &Store), 'Store() is not exported';