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1 | #!./perl |
2 | |
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3 | # $Id: tied_hook.t,v 1.0.1.1 2001/02/17 12:29:01 ram Exp $ |
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4 | # |
5 | # Copyright (c) 1995-2000, Raphael Manfredi |
6 | # |
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7 | # You may redistribute only under the same terms as Perl 5, as specified |
8 | # in the README file that comes with the distribution. |
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9 | # |
10 | # $Log: tied_hook.t,v $ |
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11 | # Revision 1.0.1.1 2001/02/17 12:29:01 ram |
12 | # patch8: added test for blessed ref to tied hash |
13 | # |
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14 | # Revision 1.0 2000/09/01 19:40:42 ram |
15 | # Baseline for first official release. |
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16 | # |
17 | |
18 | sub BEGIN { |
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19 | if ($ENV{PERL_CORE}){ |
20 | chdir('t') if -d 't'; |
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21 | @INC = ('.', '../lib', '../ext/Storable/t'); |
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22 | } else { |
23 | unshift @INC, 't'; |
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24 | } |
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25 | require Config; import Config; |
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26 | if ($ENV{PERL_CORE} and $Config{'extensions'} !~ /\bStorable\b/) { |
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27 | print "1..0 # Skip: Storable was not built\n"; |
28 | exit 0; |
29 | } |
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30 | require 'st-dump.pl'; |
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31 | } |
32 | |
33 | sub ok; |
34 | |
35 | use Storable qw(freeze thaw); |
36 | |
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37 | print "1..25\n"; |
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38 | |
39 | ($scalar_fetch, $array_fetch, $hash_fetch) = (0, 0, 0); |
40 | |
41 | package TIED_HASH; |
42 | |
43 | sub TIEHASH { |
44 | my $self = bless {}, shift; |
45 | return $self; |
46 | } |
47 | |
48 | sub FETCH { |
49 | my $self = shift; |
50 | my ($key) = @_; |
51 | $main::hash_fetch++; |
52 | return $self->{$key}; |
53 | } |
54 | |
55 | sub STORE { |
56 | my $self = shift; |
57 | my ($key, $value) = @_; |
58 | $self->{$key} = $value; |
59 | } |
60 | |
61 | sub FIRSTKEY { |
62 | my $self = shift; |
63 | scalar keys %{$self}; |
64 | return each %{$self}; |
65 | } |
66 | |
67 | sub NEXTKEY { |
68 | my $self = shift; |
69 | return each %{$self}; |
70 | } |
71 | |
72 | sub STORABLE_freeze { |
73 | my $self = shift; |
74 | $main::hash_hook1++; |
75 | return join(":", keys %$self) . ";" . join(":", values %$self); |
76 | } |
77 | |
78 | sub STORABLE_thaw { |
79 | my ($self, $cloning, $frozen) = @_; |
80 | my ($keys, $values) = split(/;/, $frozen); |
81 | my @keys = split(/:/, $keys); |
82 | my @values = split(/:/, $values); |
83 | for (my $i = 0; $i < @keys; $i++) { |
84 | $self->{$keys[$i]} = $values[$i]; |
85 | } |
86 | $main::hash_hook2++; |
87 | } |
88 | |
89 | package TIED_ARRAY; |
90 | |
91 | sub TIEARRAY { |
92 | my $self = bless [], shift; |
93 | return $self; |
94 | } |
95 | |
96 | sub FETCH { |
97 | my $self = shift; |
98 | my ($idx) = @_; |
99 | $main::array_fetch++; |
100 | return $self->[$idx]; |
101 | } |
102 | |
103 | sub STORE { |
104 | my $self = shift; |
105 | my ($idx, $value) = @_; |
106 | $self->[$idx] = $value; |
107 | } |
108 | |
109 | sub FETCHSIZE { |
110 | my $self = shift; |
111 | return @{$self}; |
112 | } |
113 | |
114 | sub STORABLE_freeze { |
115 | my $self = shift; |
116 | $main::array_hook1++; |
117 | return join(":", @$self); |
118 | } |
119 | |
120 | sub STORABLE_thaw { |
121 | my ($self, $cloning, $frozen) = @_; |
122 | @$self = split(/:/, $frozen); |
123 | $main::array_hook2++; |
124 | } |
125 | |
126 | package TIED_SCALAR; |
127 | |
128 | sub TIESCALAR { |
129 | my $scalar; |
130 | my $self = bless \$scalar, shift; |
131 | return $self; |
132 | } |
133 | |
134 | sub FETCH { |
135 | my $self = shift; |
136 | $main::scalar_fetch++; |
137 | return $$self; |
138 | } |
139 | |
140 | sub STORE { |
141 | my $self = shift; |
142 | my ($value) = @_; |
143 | $$self = $value; |
144 | } |
145 | |
146 | sub STORABLE_freeze { |
147 | my $self = shift; |
148 | $main::scalar_hook1++; |
149 | return $$self; |
150 | } |
151 | |
152 | sub STORABLE_thaw { |
153 | my ($self, $cloning, $frozen) = @_; |
154 | $$self = $frozen; |
155 | $main::scalar_hook2++; |
156 | } |
157 | |
158 | package main; |
159 | |
160 | $a = 'toto'; |
161 | $b = \$a; |
162 | |
163 | $c = tie %hash, TIED_HASH; |
164 | $d = tie @array, TIED_ARRAY; |
165 | tie $scalar, TIED_SCALAR; |
166 | |
167 | $scalar = 'foo'; |
168 | $hash{'attribute'} = 'plain value'; |
169 | $array[0] = \$scalar; |
170 | $array[1] = $c; |
171 | $array[2] = \@array; |
172 | $array[3] = "plaine scalaire"; |
173 | |
174 | @tied = (\$scalar, \@array, \%hash); |
175 | %a = ('key', 'value', 1, 0, $a, $b, 'cvar', \$a, 'scalarref', \$scalar); |
176 | @a = ('first', 3, -4, -3.14159, 456, 4.5, $d, \$d, |
177 | $b, \$a, $a, $c, \$c, \%a, \@array, \%hash, \@tied); |
178 | |
179 | ok 1, defined($f = freeze(\@a)); |
180 | |
181 | $dumped = &dump(\@a); |
182 | ok 2, 1; |
183 | |
184 | $root = thaw($f); |
185 | ok 3, defined $root; |
186 | |
187 | $got = &dump($root); |
188 | ok 4, 1; |
189 | |
190 | ok 5, $got ne $dumped; # our hooks did not handle refs in array |
191 | |
192 | $g = freeze($root); |
193 | ok 6, length($f) == length($g); |
194 | |
195 | # Ensure the tied items in the retrieved image work |
196 | @old = ($scalar_fetch, $array_fetch, $hash_fetch); |
197 | @tied = ($tscalar, $tarray, $thash) = @{$root->[$#{$root}]}; |
198 | @type = qw(SCALAR ARRAY HASH); |
199 | |
200 | ok 7, tied $$tscalar; |
201 | ok 8, tied @{$tarray}; |
202 | ok 9, tied %{$thash}; |
203 | |
204 | @new = ($$tscalar, $tarray->[0], $thash->{'attribute'}); |
205 | @new = ($scalar_fetch, $array_fetch, $hash_fetch); |
206 | |
207 | # Tests 10..15 |
208 | for ($i = 0; $i < @new; $i++) { |
209 | ok 10 + 2*$i, $new[$i] == $old[$i] + 1; # Tests 10,12,14 |
210 | ok 11 + 2*$i, ref $tied[$i] eq $type[$i]; # Tests 11,13,15 |
211 | } |
212 | |
213 | ok 16, $$tscalar eq 'foo'; |
214 | ok 17, $tarray->[3] eq 'plaine scalaire'; |
215 | ok 18, $thash->{'attribute'} eq 'plain value'; |
216 | |
217 | # Ensure hooks were called |
218 | ok 19, ($scalar_hook1 && $scalar_hook2); |
219 | ok 20, ($array_hook1 && $array_hook2); |
220 | ok 21, ($hash_hook1 && $hash_hook2); |
221 | |
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222 | # |
223 | # And now for the "blessed ref to tied hash" with "store hook" test... |
224 | # |
225 | |
226 | my $bc = bless \%hash, 'FOO'; # FOO does not exist -> no hook |
227 | my $bx = thaw freeze $bc; |
228 | |
229 | ok 22, ref $bx eq 'FOO'; |
230 | my $old_hash_fetch = $hash_fetch; |
231 | my $v = $bx->{attribute}; |
232 | ok 23, $hash_fetch == $old_hash_fetch + 1; # Still tied |
233 | |
234 | package TIED_HASH_REF; |
235 | |
236 | |
237 | sub STORABLE_freeze { |
238 | my ($self, $cloning) = @_; |
239 | return if $cloning; |
240 | return('ref lost'); |
241 | } |
242 | |
243 | sub STORABLE_thaw { |
244 | my ($self, $cloning, $data) = @_; |
245 | return if $cloning; |
246 | } |
247 | |
248 | package main; |
249 | |
250 | $bc = bless \%hash, 'TIED_HASH_REF'; |
251 | $bx = thaw freeze $bc; |
252 | |
253 | ok 24, ref $bx eq 'TIED_HASH_REF'; |
254 | $old_hash_fetch = $hash_fetch; |
255 | $v = $bx->{attribute}; |
256 | ok 25, $hash_fetch == $old_hash_fetch + 1; # Still tied |
257 | |