# $Id: 06refcnt.t,v 0.22 2007/07/25 03:41:06 ray Exp $
# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl test.pl'
######################### We start with some black magic to print on failure.
# Change 1..1 below to 1..last_test_to_print .
# (It may become useful if the test is moved to ./t subdirectory.)
my $HAS_WEAKEN;
BEGIN {
$| = 1;
my $plan = 20;
eval 'use Scalar::Util qw( weaken isweak );';
if ($@) {
$HAS_WEAKEN = 0;
$plan = 15;
}
else {
$HAS_WEAKEN = 1;
}
print "1..$plan\n";
}
END {print "not ok 1\n" unless $loaded;}
use Clone qw( clone );
$loaded = 1;
print "ok 1\n";
######################### End of black magic.
# Insert your test code below (better if it prints "ok 13"
# (correspondingly "not ok 13") depending on the success of chunk 13
# of the test code):
# code to test for memory leaks
## use Benchmark;
## use Data::Dumper;
# use Storable qw( dclone );
$^W = 1;
$test = 2;
sub ok { printf("ok %d\n", $test++); }
sub not_ok { printf("not ok %d\n", $test++); }
use strict;
package Test::Hash;
@Test::Hash::ISA = qw( Clone );
sub new()
{
my ($class) = @_;
my $self = {};
bless $self, $class;
}
my $ok = 0;
END { $ok = 1; };
sub DESTROY
{
my $self = shift;
printf("not ") if $ok;
printf("ok %d\n", $::test++);
}
package main;
{
my $a = Test::Hash->new();
my $b = $a->clone;
# my $c = dclone($a);
}
# benchmarking bug
{
my $a = Test::Hash->new();
my $sref = sub { my $b = clone($a) };
$sref->();
}
# test for cloning unblessed ref
{
my $a = {};
my $b = clone($a);
bless $a, 'Test::Hash';
bless $b, 'Test::Hash';
}
# test for cloning unblessed ref
{
my $a = [];
my $b = clone($a);
bless $a, 'Test::Hash';
bless $b, 'Test::Hash';
}
# test for cloning ref that was an int(IV)
{
my $a = 1;
$a = [];
my $b = clone($a);
bless $a, 'Test::Hash';
bless $b, 'Test::Hash';
}
# test for cloning ref that was a string(PV)
{
my $a = '';
$a = [];
my $b = clone($a);
bless $a, 'Test::Hash';
bless $b, 'Test::Hash';
}
# test for cloning ref that was a magic(PVMG)
{
my $a = *STDOUT;
$a = [];
my $b = clone($a);
bless $a, 'Test::Hash';
bless $b, 'Test::Hash';
}
# test for cloning weak reference
if ( $HAS_WEAKEN ) {
{
my $a = new Test::Hash();
my $b = { r => $a };
$a->{r} = $b;
weaken($b->{'r'});
my $c = clone($a);
}
# another weak reference problem, this one causes a segfault in 0.24
{
my $a = new Test::Hash();
{
my $b = [ $a, $a ];
$a->{r} = $b;
weaken($b->[0]);
weaken($b->[1]);
}
my $c = clone($a);
# check that references point to the same thing
print "not " unless $c->{'r'}[0] == $c->{'r'}[1];
printf "ok %d\n", $::test++;
}
}