use strict; use warnings; use Test::More 0.88; use if $ENV{AUTHOR_TESTING}, 'Test::Warnings'; my $child = Child->new(); my @words = split ' ', $child->orig("param"); is($words[0], "before"); is($words[1], "PARAM-orig"); is($words[2], "after"); BEGIN { package MyParent; sub new { bless {}, shift } sub orig { my $self = shift; my $arg = shift; return "$arg-orig"; } } BEGIN { package Child; our @ISA = 'MyParent'; use Class::Method::Modifiers; around 'orig' => sub { my $orig = shift; my $self = shift; my $arg = shift; join ' ', "before", $orig->($self, uc $arg), "after"; }; } done_testing;