use Test::More;
use strict; use warnings FATAL => 'all';
use List::Objects::WithUtils 'array';
my $empty = array->rotator;
ok !defined $empty->(), 'empty rotator ok';
my $rotator = array(1, 2, 3)->rotator;
my @vals = map {; $rotator->() } 1 .. 7;
is_deeply
[ @vals ],
[ 1, 2, 3, 1, 2, 3, 1 ],
'rotator ok';
done_testing