1#!./perl 2# 3# Copyright (c) 1995-2000, Raphael Manfredi 4# 5# You may redistribute only under the same terms as Perl 5, as specified 6# in the README file that comes with the distribution. 7# 8 9sub BEGIN { 10 unshift @INC, 't'; 11 unshift @INC, 't/compat' if $] < 5.006002; 12 require Config; import Config; 13 if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) { 14 print "1..0 # Skip: Storable was not built\n"; 15 exit 0; 16 } 17 require 'st-dump.pl'; 18} 19 20use Storable qw(freeze thaw); 21$Storable::flags = Storable::FLAGS_COMPAT; 22 23use Test::More tests => 25; 24 25($scalar_fetch, $array_fetch, $hash_fetch) = (0, 0, 0); 26 27package TIED_HASH; 28 29sub TIEHASH { 30 my $self = bless {}, shift; 31 return $self; 32} 33 34sub FETCH { 35 my $self = shift; 36 my ($key) = @_; 37 $main::hash_fetch++; 38 return $self->{$key}; 39} 40 41sub STORE { 42 my $self = shift; 43 my ($key, $value) = @_; 44 $self->{$key} = $value; 45} 46 47sub FIRSTKEY { 48 my $self = shift; 49 scalar keys %{$self}; 50 return each %{$self}; 51} 52 53sub NEXTKEY { 54 my $self = shift; 55 return each %{$self}; 56} 57 58package TIED_ARRAY; 59 60sub TIEARRAY { 61 my $self = bless [], shift; 62 return $self; 63} 64 65sub FETCH { 66 my $self = shift; 67 my ($idx) = @_; 68 $main::array_fetch++; 69 return $self->[$idx]; 70} 71 72sub STORE { 73 my $self = shift; 74 my ($idx, $value) = @_; 75 $self->[$idx] = $value; 76} 77 78sub FETCHSIZE { 79 my $self = shift; 80 return @{$self}; 81} 82 83package TIED_SCALAR; 84 85sub TIESCALAR { 86 my $scalar; 87 my $self = bless \$scalar, shift; 88 return $self; 89} 90 91sub FETCH { 92 my $self = shift; 93 $main::scalar_fetch++; 94 return $$self; 95} 96 97sub STORE { 98 my $self = shift; 99 my ($value) = @_; 100 $$self = $value; 101} 102 103package FAULT; 104 105$fault = 0; 106 107sub TIESCALAR { 108 my $pkg = shift; 109 return bless [@_], $pkg; 110} 111 112sub FETCH { 113 my $self = shift; 114 my ($href, $key) = @$self; 115 $fault++; 116 untie $href->{$key}; 117 return $href->{$key} = 1; 118} 119 120package main; 121 122$a = 'toto'; 123$b = \$a; 124 125$c = tie %hash, TIED_HASH; 126$d = tie @array, TIED_ARRAY; 127tie $scalar, TIED_SCALAR; 128 129#$scalar = 'foo'; 130#$hash{'attribute'} = \$d; 131#$array[0] = $c; 132#$array[1] = \$scalar; 133 134### If I say 135### $hash{'attribute'} = $d; 136### below, then dump() incorrectly dumps the hash value as a string the second 137### time it is reached. I have not investigated enough to tell whether it's 138### a bug in my dump() routine or in the Perl tieing mechanism. 139$scalar = 'foo'; 140$hash{'attribute'} = 'plain value'; 141$array[0] = \$scalar; 142$array[1] = $c; 143$array[2] = \@array; 144 145@tied = (\$scalar, \@array, \%hash); 146%a = ('key', 'value', 1, 0, $a, $b, 'cvar', \$a, 'scalarref', \$scalar); 147@a = ('first', 3, -4, -3.14159, 456, 4.5, $d, \$d, 148 $b, \$a, $a, $c, \$c, \%a, \@array, \%hash, \@tied); 149 150my $f = freeze(\@a); 151isnt($f, undef); 152 153$dumped = &dump(\@a); 154isnt($dumped, undef); 155 156$root = thaw($f); 157isnt($root, undef); 158 159$got = &dump($root); 160isnt($got, undef); 161 162### Used to see the manifestation of the bug documented above. 163### print "original: $dumped"; 164### print "--------\n"; 165### print "got: $got"; 166### print "--------\n"; 167 168is($got, $dumped); 169 170$g = freeze($root); 171is(length $f, length $g); 172 173# Ensure the tied items in the retrieved image work 174@old = ($scalar_fetch, $array_fetch, $hash_fetch); 175@tied = ($tscalar, $tarray, $thash) = @{$root->[$#{$root}]}; 176@type = qw(SCALAR ARRAY HASH); 177 178is(ref tied $$tscalar, 'TIED_SCALAR'); 179is(ref tied @$tarray, 'TIED_ARRAY'); 180is(ref tied %$thash, 'TIED_HASH'); 181 182@new = ($$tscalar, $tarray->[0], $thash->{'attribute'}); 183@new = ($scalar_fetch, $array_fetch, $hash_fetch); 184 185# Tests 10..15 186for ($i = 0; $i < @new; $i++) { 187 is($new[$i], $old[$i] + 1); 188 is(ref $tied[$i], $type[$i]); 189} 190 191# Check undef ties 192my $h = {}; 193tie $h->{'x'}, 'FAULT', $h, 'x'; 194my $hf = freeze($h); 195isnt($hf, undef); 196is($FAULT::fault, 0); 197is($h->{'x'}, 1); 198is($FAULT::fault, 1); 199 200my $ht = thaw($hf); 201isnt($ht, undef); 202is($ht->{'x'}, 1); 203is($FAULT::fault, 2); 204 205{ 206 package P; 207 use Storable qw(freeze thaw); 208 our ($a, $b); 209 $b = "not ok "; 210 sub TIESCALAR { bless \$a } sub FETCH { "ok " } 211 tie $a, P; my $r = thaw freeze \$a; $b = $$r; 212 main::is($b, "ok "); 213} 214 215{ 216 # blessed ref to tied object should be thawed blessed 217 my @a; 218 tie @a, TIED_ARRAY; 219 my $r = bless \@a, 'FOO99'; 220 my $f = freeze($r); 221 my $t = thaw($f); 222 isnt($t, undef); 223 like("$t", qr/^FOO99=ARRAY/); 224} 225