CPAN::Groonga

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

use_ok 'Data::Object::Number';
# deprecated
# can_ok 'Data::Object::Number', 'incr';

use Scalar::Util 'refaddr';

subtest 'test the incr method' => sub {
  my $number = Data::Object::Number->new(123456789);
  my $incr   = $number->incr();

  isnt refaddr($number), refaddr($incr);
  is $incr, 123456790;

  isa_ok $number, 'Data::Object::Number';
  isa_ok $incr,   'Data::Object::Number';
};

ok 1 and done_testing;