use Test::More;
use strict; use warnings FATAL => 'all';
use Lowu;
my $arr = [1 .. 4];
ok $arr->rotate_in_place == $arr,
'boxed rotate_in_place returned self ok';
is_deeply
[ $arr->all ],
[ 2, 3, 4, 1 ],
'boxed rotate_in_place ok';
done_testing;