--- /dev/null
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use lib 't/lib';
+use Test::More;
+
+use Package::Stash;
+
+{
+ package Foo;
+}
+
+{
+ package Bar;
+}
+
+my $stash = Package::Stash->new('Foo');
+my @ISA = ('Bar');
+@{$stash->get_or_add_symbol('@ISA')} = @ISA;
+isa_ok('Foo', 'Bar');
+
+done_testing;