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