Storable/t/dclone.t
#!./perl
#
# Copyright (c) 1995-2000, Raphael Manfredi
#
# You may redistribute only under the same terms as Perl 5, as specified
# in the README file that comes with the distribution.
#
sub BEGIN {
unshift @INC, 't';
unshift @INC, 't/compat' if $] < 5.006002;
require Config; import Config;
if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) {
print "1..0 # Skip: Storable was not built\n";
exit 0;
}
require 'st-dump.pl';
}
use Storable qw(dclone);
use Test::More tests => 14;
$a = 'toto';
$b = \$a;
$c = bless {}, CLASS;
$c->{attribute} = 'attrval';
%a = ('key', 'value', 1, 0, $a, $b, 'cvar', \$c);
@a = ('first', undef, 3, -4, -3.14159, 456, 4.5,
$b, \$a, $a, $c, \$c, \%a);
my $aref = dclone(\@a);
isnt($aref, undef);
$dumped = &dump(\@a);
isnt($dumped, undef);
$got = &dump($aref);
isnt($got, undef);
is($got, $dumped);
package FOO; @ISA = qw(Storable);
sub make {
my $self = bless {};
$self->{key} = \%main::a;
return $self;
};
package main;
$foo = FOO->make;
my $r = $foo->dclone;
isnt($r, undef);
is(&dump($foo), &dump($r));
# Ensure refs to "undef" values are properly shared during cloning
my $hash;
push @{$$hash{''}}, \$$hash{a};
is($$hash{''}[0], \$$hash{a});
my $cloned = dclone(dclone($hash));
is($$cloned{''}[0], \$$cloned{a});
$$cloned{a} = "blah";
is($$cloned{''}[0], \$$cloned{a});
# [ID 20020221.007 (#8624)] SEGV in Storable with empty string scalar object
package TestString;
sub new {
my ($type, $string) = @_;
return bless(\$string, $type);
}
package main;
my $empty_string_obj = TestString->new('');
my $clone = dclone($empty_string_obj);
# If still here after the dclone the fix (#17543) worked.
is(ref $clone, ref $empty_string_obj);
is($$clone, $$empty_string_obj);
is($$clone, '');
SKIP: {
# Do not fail if Tie::Hash and/or Tie::StdHash is not available
skip 'No Tie::StdHash available', 2
unless eval { require Tie::Hash; scalar keys %Tie::StdHash:: };
skip 'This version of perl has problems with Tie::StdHash', 2
if $] eq "5.008";
tie my %tie, "Tie::StdHash" or die $!;
$tie{array} = [1,2,3,4];
$tie{hash} = {1,2,3,4};
my $clone_array = dclone $tie{array};
is("@$clone_array", "@{$tie{array}}");
my $clone_hash = dclone $tie{hash};
is($clone_hash->{1}, $tie{hash}{1});
}