CPAN::Groonga

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

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

use Scalar::Util 'refaddr';

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

  my $values   = [];
  my @argument = ();
  my $iterator = $hash->iterator(@argument);
  while (my $value = $iterator->()) {
    push @$values, $value;
  }

  isnt refaddr($hash), refaddr($iterator);
  ok $iterator,;
  is_deeply [sort @{$values}], [sort values %{$hash}];

  isa_ok $hash,     'Data::Object::Hash';
  isa_ok $iterator, 'Data::Object::Code';
};

ok 1 and done_testing;