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use Test::More;
use strict; use warnings FATAL => 'all';
use List::Objects::WithUtils 'hash';
my $hr = hash(map {; $_ => 1 } qw/d b c a/);
is_deeply
[ $hr->kv_sort->all ],
[
[ a => 1 ],
[ b => 1 ],
[ c => 1 ],
[ d => 1 ]
],
'kv_sort default ok';
is_deeply
[ $hr->kv_sort(undef)->all ],
[ $hr->kv_sort->all ],
'kv_sort non-subroutine (false) arg ok';
eval {; $hr->kv_sort(1) };
ok $@, 'kv_sort non-subroutine (true) arg dies ok';
is_deeply
[ $hr->kv_sort(sub { $_[1] cmp $_[0] })->all ],
[
[ d => 1 ],
[ c => 1 ],
[ b => 1 ],
[ a => 1 ],
],
'kv_sort with positional args ok';
my $warned;
$SIG{__WARN__} = sub { $warned = shift };
is_deeply
[ $hr->kv_sort(sub { $b cmp $a })->all ],
[
[ d => 1 ],
[ c => 1 ],
[ b => 1 ],
[ a => 1 ],
],
'kv_sort with named args ok';
ok !$warned, 'using $a/$b produced no warnings'
or fail 'using $a/$b produced warning: '.$warned;
done_testing;
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