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use Test::More;
use strict; use warnings FATAL => 'all';
use List::Objects::WithUtils 'array';
my $arr = array(1 .. 4);
my $left = $arr->rotate;
is_deeply
[ $left->all ],
[ 2, 3, 4, 1 ],
'rotate default opts ok';
is_deeply
[ $arr->all ],
[ 1, 2, 3, 4 ],
'original array intact';
is_deeply
[ $arr->rotate(left => 1)->all ],
[ 2, 3, 4, 1 ],
'rotate leftwards ok';
is_deeply
[ $arr->rotate(right => 1)->all ],
[ 4, 1, 2, 3 ],
'rotate rightwards ok';
$arr = array(1 .. 2);
$left = $arr->rotate;
is_deeply [ $left->all ], [ 2, 1 ],
'rotated leftwards once';
$left = $left->rotate;
is_deeply [ $left->all ], [ 1, 2 ],
'rotated full-circle (left)';
my $right = $arr->rotate(right => 1);
is_deeply [ $right->all ], [ 2, 1 ],
'rotated rightwards once';
$right = $right->rotate;
is_deeply [ $right->all ], [ 1, 2 ],
'rotated full-circle (right)';
ok array->rotate(left => 1)->is_empty, 'empty array rotate left ok';
ok array->rotate(right => 1)->is_empty, 'empty array rotate right ok';
eval {; $arr->rotate(left => 1, right => 1) };
like $@, qr/direction/, 'bad opts die ok';
done_testing
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