CPAN::Groonga

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

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

use Scalar::Util 'refaddr';

subtest 'test the size method' => sub {
  my $array = Data::Object::Array->new([1 .. 5]);

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

  isnt refaddr($array), refaddr($size);
  is $size, 5;

  isa_ok $array, 'Data::Object::Array';
  isa_ok $size,  'Data::Object::Number';
};

ok 1 and done_testing;