CPAN::Groonga

use strict;
use warnings;
use Test::More;

use_ok 'Data::Object::Hash';
# deprecated
# can_ok 'Data::Object::Hash', 'pairs';

use Scalar::Util 'refaddr';

subtest 'test the pairs method' => sub {
  my $hash  = Data::Object::Hash->new({1 .. 8});
  my $pairs = $hash->pairs;

  isnt refaddr($hash), refaddr($pairs);
  is_deeply $_, [$_->[0], $_->[0] + 1] for @{$pairs};

  isa_ok $hash,  'Data::Object::Hash';
  isa_ok $pairs, 'Data::Object::Array';
};

ok 1 and done_testing;