CPAN::Groonga

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

use_ok 'Data::Object::Array';
# deprecated
# can_ok 'Data::Object::Array', 'unique';

use Scalar::Util 'refaddr';

subtest 'test the unique method' => sub {
  my $array = Data::Object::Array->new([1, 1, 1, 1, 2, 3, 1]);

  my @argument = ();
  my $unique   = $array->unique(@argument);

  isnt refaddr($array), refaddr($unique);
  is_deeply $unique, [1, 2, 3];

  isa_ok $array,  'Data::Object::Array';
  isa_ok $unique, 'Data::Object::Array';
};

ok 1 and done_testing;