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1 | #!./perl |
2 | |
3 | # $Id: tied_hook.t,v 0.7 2000/08/03 22:04:45 ram Exp $ |
4 | # |
5 | # Copyright (c) 1995-2000, Raphael Manfredi |
6 | # |
7 | # You may redistribute only under the terms of the Artistic License, |
8 | # as specified in the README file that comes with the distribution. |
9 | # |
10 | # $Log: tied_hook.t,v $ |
11 | # Revision 0.7 2000/08/03 22:04:45 ram |
12 | # Baseline for second beta release. |
13 | # |
14 | |
15 | sub BEGIN { |
16 | chdir('t') if -d 't'; |
17 | unshift @INC, '../lib'; |
18 | require 'lib/st-dump.pl'; |
19 | } |
20 | |
21 | sub ok; |
22 | |
23 | use Storable qw(freeze thaw); |
24 | |
25 | print "1..21\n"; |
26 | |
27 | ($scalar_fetch, $array_fetch, $hash_fetch) = (0, 0, 0); |
28 | |
29 | package TIED_HASH; |
30 | |
31 | sub TIEHASH { |
32 | my $self = bless {}, shift; |
33 | return $self; |
34 | } |
35 | |
36 | sub FETCH { |
37 | my $self = shift; |
38 | my ($key) = @_; |
39 | $main::hash_fetch++; |
40 | return $self->{$key}; |
41 | } |
42 | |
43 | sub STORE { |
44 | my $self = shift; |
45 | my ($key, $value) = @_; |
46 | $self->{$key} = $value; |
47 | } |
48 | |
49 | sub FIRSTKEY { |
50 | my $self = shift; |
51 | scalar keys %{$self}; |
52 | return each %{$self}; |
53 | } |
54 | |
55 | sub NEXTKEY { |
56 | my $self = shift; |
57 | return each %{$self}; |
58 | } |
59 | |
60 | sub STORABLE_freeze { |
61 | my $self = shift; |
62 | $main::hash_hook1++; |
63 | return join(":", keys %$self) . ";" . join(":", values %$self); |
64 | } |
65 | |
66 | sub STORABLE_thaw { |
67 | my ($self, $cloning, $frozen) = @_; |
68 | my ($keys, $values) = split(/;/, $frozen); |
69 | my @keys = split(/:/, $keys); |
70 | my @values = split(/:/, $values); |
71 | for (my $i = 0; $i < @keys; $i++) { |
72 | $self->{$keys[$i]} = $values[$i]; |
73 | } |
74 | $main::hash_hook2++; |
75 | } |
76 | |
77 | package TIED_ARRAY; |
78 | |
79 | sub TIEARRAY { |
80 | my $self = bless [], shift; |
81 | return $self; |
82 | } |
83 | |
84 | sub FETCH { |
85 | my $self = shift; |
86 | my ($idx) = @_; |
87 | $main::array_fetch++; |
88 | return $self->[$idx]; |
89 | } |
90 | |
91 | sub STORE { |
92 | my $self = shift; |
93 | my ($idx, $value) = @_; |
94 | $self->[$idx] = $value; |
95 | } |
96 | |
97 | sub FETCHSIZE { |
98 | my $self = shift; |
99 | return @{$self}; |
100 | } |
101 | |
102 | sub STORABLE_freeze { |
103 | my $self = shift; |
104 | $main::array_hook1++; |
105 | return join(":", @$self); |
106 | } |
107 | |
108 | sub STORABLE_thaw { |
109 | my ($self, $cloning, $frozen) = @_; |
110 | @$self = split(/:/, $frozen); |
111 | $main::array_hook2++; |
112 | } |
113 | |
114 | package TIED_SCALAR; |
115 | |
116 | sub TIESCALAR { |
117 | my $scalar; |
118 | my $self = bless \$scalar, shift; |
119 | return $self; |
120 | } |
121 | |
122 | sub FETCH { |
123 | my $self = shift; |
124 | $main::scalar_fetch++; |
125 | return $$self; |
126 | } |
127 | |
128 | sub STORE { |
129 | my $self = shift; |
130 | my ($value) = @_; |
131 | $$self = $value; |
132 | } |
133 | |
134 | sub STORABLE_freeze { |
135 | my $self = shift; |
136 | $main::scalar_hook1++; |
137 | return $$self; |
138 | } |
139 | |
140 | sub STORABLE_thaw { |
141 | my ($self, $cloning, $frozen) = @_; |
142 | $$self = $frozen; |
143 | $main::scalar_hook2++; |
144 | } |
145 | |
146 | package main; |
147 | |
148 | $a = 'toto'; |
149 | $b = \$a; |
150 | |
151 | $c = tie %hash, TIED_HASH; |
152 | $d = tie @array, TIED_ARRAY; |
153 | tie $scalar, TIED_SCALAR; |
154 | |
155 | $scalar = 'foo'; |
156 | $hash{'attribute'} = 'plain value'; |
157 | $array[0] = \$scalar; |
158 | $array[1] = $c; |
159 | $array[2] = \@array; |
160 | $array[3] = "plaine scalaire"; |
161 | |
162 | @tied = (\$scalar, \@array, \%hash); |
163 | %a = ('key', 'value', 1, 0, $a, $b, 'cvar', \$a, 'scalarref', \$scalar); |
164 | @a = ('first', 3, -4, -3.14159, 456, 4.5, $d, \$d, |
165 | $b, \$a, $a, $c, \$c, \%a, \@array, \%hash, \@tied); |
166 | |
167 | ok 1, defined($f = freeze(\@a)); |
168 | |
169 | $dumped = &dump(\@a); |
170 | ok 2, 1; |
171 | |
172 | $root = thaw($f); |
173 | ok 3, defined $root; |
174 | |
175 | $got = &dump($root); |
176 | ok 4, 1; |
177 | |
178 | ok 5, $got ne $dumped; # our hooks did not handle refs in array |
179 | |
180 | $g = freeze($root); |
181 | ok 6, length($f) == length($g); |
182 | |
183 | # Ensure the tied items in the retrieved image work |
184 | @old = ($scalar_fetch, $array_fetch, $hash_fetch); |
185 | @tied = ($tscalar, $tarray, $thash) = @{$root->[$#{$root}]}; |
186 | @type = qw(SCALAR ARRAY HASH); |
187 | |
188 | ok 7, tied $$tscalar; |
189 | ok 8, tied @{$tarray}; |
190 | ok 9, tied %{$thash}; |
191 | |
192 | @new = ($$tscalar, $tarray->[0], $thash->{'attribute'}); |
193 | @new = ($scalar_fetch, $array_fetch, $hash_fetch); |
194 | |
195 | # Tests 10..15 |
196 | for ($i = 0; $i < @new; $i++) { |
197 | ok 10 + 2*$i, $new[$i] == $old[$i] + 1; # Tests 10,12,14 |
198 | ok 11 + 2*$i, ref $tied[$i] eq $type[$i]; # Tests 11,13,15 |
199 | } |
200 | |
201 | ok 16, $$tscalar eq 'foo'; |
202 | ok 17, $tarray->[3] eq 'plaine scalaire'; |
203 | ok 18, $thash->{'attribute'} eq 'plain value'; |
204 | |
205 | # Ensure hooks were called |
206 | ok 19, ($scalar_hook1 && $scalar_hook2); |
207 | ok 20, ($array_hook1 && $array_hook2); |
208 | ok 21, ($hash_hook1 && $hash_hook2); |
209 | |