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