#!./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;
}
}
use Test::More;
use Storable qw(freeze thaw store retrieve);
%::immortals
= (u => \undef,
'y' => \(1 == 1),
n => \(1 == 0)
);
{
%::weird_refs = (
REF => \(my $aref = []),
VSTRING => \(my $vstring = v1.2.3),
'long VSTRING' => \(my $vstring = eval "v" . 0 x 300),
LVALUE => \(my $substr = substr((my $str = "foo"), 0, 3)),
);
}
my $test = 12;
my $tests = $test + 23 + (2 * 6 * keys %::immortals) + (3 * keys %::weird_refs);
plan(tests => $tests);
package SHORT_NAME;
sub make { bless [], shift }
package SHORT_NAME_WITH_HOOK;
sub make { bless [], shift }
sub STORABLE_freeze {
my $self = shift;
return ("", $self);
}
sub STORABLE_thaw {
my $self = shift;
my $cloning = shift;
my ($x, $obj) = @_;
die "STORABLE_thaw" unless $obj eq $self;
}
package main;
# Still less than 256 bytes, so long classname logic not fully exercised
# Wait until Perl removes the restriction on identifier lengths.
my $name = "LONG_NAME_" . 'xxxxxxxxxxxxx::' x 14 . "final";
eval <<EOC;
package $name;
\@ISA = ("SHORT_NAME");
EOC
is($@, '');
eval <<EOC;
package ${name}_WITH_HOOK;
\@ISA = ("SHORT_NAME_WITH_HOOK");
EOC
is($@, '');
# Construct a pool of objects
my @pool;
for (my $i = 0; $i < 10; $i++) {
push(@pool, SHORT_NAME->make);
push(@pool, SHORT_NAME_WITH_HOOK->make);
push(@pool, $name->make);
push(@pool, "${name}_WITH_HOOK"->make);
}
my $x = freeze \@pool;
pass("Freeze didn't crash");
my $y = thaw $x;
is(ref $y, 'ARRAY');
is(scalar @{$y}, @pool);
is(ref $y->[0], 'SHORT_NAME');
is(ref $y->[1], 'SHORT_NAME_WITH_HOOK');
is(ref $y->[2], $name);
is(ref $y->[3], "${name}_WITH_HOOK");
my $good = 1;
for (my $i = 0; $i < 10; $i++) {
do { $good = 0; last } unless ref $y->[4*$i] eq 'SHORT_NAME';
do { $good = 0; last } unless ref $y->[4*$i+1] eq 'SHORT_NAME_WITH_HOOK';
do { $good = 0; last } unless ref $y->[4*$i+2] eq $name;
do { $good = 0; last } unless ref $y->[4*$i+3] eq "${name}_WITH_HOOK";
}
is($good, 1);
{
my $blessed_ref = bless \\[1,2,3], 'Foobar';
my $x = freeze $blessed_ref;
my $y = thaw $x;
is(ref $y, 'Foobar');
is($$$y->[0], 1);
}
package RETURNS_IMMORTALS;
sub make { my $self = shift; bless [@_], $self }
sub STORABLE_freeze {
# Some reference some number of times.
my $self = shift;
my ($what, $times) = @$self;
return ("$what$times", ($::immortals{$what}) x $times);
}
sub STORABLE_thaw {
my $self = shift;
my $cloning = shift;
my ($x, @refs) = @_;
my ($what, $times) = $x =~ /(.)(\d+)/;
die "'$x' didn't match" unless defined $times;
main::is(scalar @refs, $times);
my $expect = $::immortals{$what};
die "'$x' did not give a reference" unless ref $expect;
my $fail;
foreach (@refs) {
$fail++ if $_ != $expect;
}
main::is($fail, undef);
}
package main;
# $Storable::DEBUGME = 1;
my $count;
foreach $count (1..3) {
my $immortal;
foreach $immortal (keys %::immortals) {
print "# $immortal x $count\n";
my $i = RETURNS_IMMORTALS->make ($immortal, $count);
my $f = freeze ($i);
isnt($f, undef);
my $t = thaw $f;
pass("thaw didn't crash");
}
}
# Test automatic require of packages to find thaw hook.
package HAS_HOOK;
$loaded_count = 0;
$thawed_count = 0;
sub make {
bless [];
}
sub STORABLE_freeze {
my $self = shift;
return '';
}
package main;
my $f = freeze (HAS_HOOK->make);
is($HAS_HOOK::loaded_count, 0);
is($HAS_HOOK::thawed_count, 0);
my $t = thaw $f;
is($HAS_HOOK::loaded_count, 1);
is($HAS_HOOK::thawed_count, 1);
isnt($t, undef);
is(ref $t, 'HAS_HOOK');
delete $INC{"HAS_HOOK.pm"};
delete $HAS_HOOK::{STORABLE_thaw};
$t = thaw $f;
is($HAS_HOOK::loaded_count, 2);
is($HAS_HOOK::thawed_count, 2);
isnt($t, undef);
is(ref $t, 'HAS_HOOK');
{
package STRESS_THE_STACK;
my $stress;
sub make {
bless [];
}
sub no_op {
0;
}
sub STORABLE_freeze {
my $self = shift;
++$freeze_count;
return no_op(1..(++$stress * 2000)) ? die "can't happen" : '';
}
sub STORABLE_thaw {
my $self = shift;
++$thaw_count;
no_op(1..(++$stress * 2000)) && die "can't happen";
return;
}
}
$STRESS_THE_STACK::freeze_count = 0;
$STRESS_THE_STACK::thaw_count = 0;
$f = freeze (STRESS_THE_STACK->make);
is($STRESS_THE_STACK::freeze_count, 1);
is($STRESS_THE_STACK::thaw_count, 0);
$t = thaw $f;
is($STRESS_THE_STACK::freeze_count, 1);
is($STRESS_THE_STACK::thaw_count, 1);
isnt($t, undef);
is(ref $t, 'STRESS_THE_STACK');
my $file = "storable-testfile.$$";
die "Temporary file '$file' already exists" if -e $file;
END { while (-f $file) {unlink $file or die "Can't unlink '$file': $!" }}
$STRESS_THE_STACK::freeze_count = 0;
$STRESS_THE_STACK::thaw_count = 0;
store (STRESS_THE_STACK->make, $file);
is($STRESS_THE_STACK::freeze_count, 1);
is($STRESS_THE_STACK::thaw_count, 0);
$t = retrieve ($file);
is($STRESS_THE_STACK::freeze_count, 1);
is($STRESS_THE_STACK::thaw_count, 1);
isnt($t, undef);
is(ref $t, 'STRESS_THE_STACK');
{
package ModifyARG112358;
sub STORABLE_freeze { $_[0] = "foo"; }
my $o= {str=>bless {}};
my $f= ::freeze($o);
::is ref $o->{str}, __PACKAGE__,
'assignment to $_[0] in STORABLE_freeze does not corrupt things';
}
# [perl #113880]
{
{
package WeirdRefHook;
sub STORABLE_freeze { () }
$INC{'WeirdRefHook.pm'} = __FILE__;
}
for my $weird (keys %weird_refs) {
my $obj = $weird_refs{$weird};
bless $obj, 'WeirdRefHook';
my $frozen;
my $success = eval { $frozen = freeze($obj); 1 };
ok($success, "can freeze $weird objects")
|| diag("freezing failed: $@");
my $thawn = thaw($frozen);
# is_deeply ignores blessings
is ref $thawn, ref $obj, "get the right blessing back for $weird";
if ($weird =~ 'VSTRING') {
# It is not just Storable that did not support vstrings. :-)
# See https://rt.cpan.org/Ticket/Display.html?id=78678
my $newver = "version"->can("new")
? sub { "version"->new(shift) }
: sub { "" };
if (!ok
$$thawn eq $$obj && &$newver($$thawn) eq &$newver($$obj),
"get the right value back"
) {
diag "$$thawn vs $$obj";
diag &$newver($$thawn) eq &$newver($$obj) if &$newver(1);
}
}
else {
is_deeply($thawn, $obj, "get the right value back");
}
}
}