perl-5.16.2/dist/bignum/t/scope_r.t

#!/usr/bin/perl -w

###############################################################################
# Test "no bigrat;" and overloading of hex()/oct() for newer Perls

use strict;
use Test::More tests => 10;

# no :hex and :oct means these do not get overloaded for older Perls:
use bigrat;

isnt (ref(1), '', 'is in effect');
isnt (ref(2.0), '', 'is in effect');
isnt (ref(0x20), '', 'is in effect');

SKIP: {
  skip ('Need at least Perl v5.9.4', 2) if $] < 5.009004;

  is (ref(hex(9)), 'Math::BigInt', 'hex is overloaded');
  is (ref(oct(07)), 'Math::BigInt', 'oct is overloaded');
  }

{
  no bigrat;

  is (ref(1), '', 'is not in effect');
  is (ref(2.0), '', 'is not in effect');
  is (ref(0x20), '', 'is not in effect');

  isnt (ref(hex(9)), 'Math::BigInt', 'hex is not overloaded');
  isnt (ref(oct(07)), 'Math::BigInt', 'oct is not overloaded');
}