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1 | #!./perl |
2 | |
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3 | # $Id: tied_hook.t,v 1.0 2000/09/01 19:40:42 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 2000/09/01 19:40:42 ram |
12 | # Baseline for first official release. |
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13 | # |
14 | |
15 | sub BEGIN { |
16 | chdir('t') if -d 't'; |
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17 | @INC = '.'; |
18 | push @INC, '../lib'; |
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19 | require Config; import Config; |
20 | if ($Config{'extensions'} !~ /\bStorable\b/) { |
21 | print "1..0 # Skip: Storable was not built\n"; |
22 | exit 0; |
23 | } |
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24 | require 'lib/st-dump.pl'; |
25 | } |
26 | |
27 | sub ok; |
28 | |
29 | use Storable qw(freeze thaw); |
30 | |
31 | print "1..21\n"; |
32 | |
33 | ($scalar_fetch, $array_fetch, $hash_fetch) = (0, 0, 0); |
34 | |
35 | package TIED_HASH; |
36 | |
37 | sub TIEHASH { |
38 | my $self = bless {}, shift; |
39 | return $self; |
40 | } |
41 | |
42 | sub FETCH { |
43 | my $self = shift; |
44 | my ($key) = @_; |
45 | $main::hash_fetch++; |
46 | return $self->{$key}; |
47 | } |
48 | |
49 | sub STORE { |
50 | my $self = shift; |
51 | my ($key, $value) = @_; |
52 | $self->{$key} = $value; |
53 | } |
54 | |
55 | sub FIRSTKEY { |
56 | my $self = shift; |
57 | scalar keys %{$self}; |
58 | return each %{$self}; |
59 | } |
60 | |
61 | sub NEXTKEY { |
62 | my $self = shift; |
63 | return each %{$self}; |
64 | } |
65 | |
66 | sub STORABLE_freeze { |
67 | my $self = shift; |
68 | $main::hash_hook1++; |
69 | return join(":", keys %$self) . ";" . join(":", values %$self); |
70 | } |
71 | |
72 | sub STORABLE_thaw { |
73 | my ($self, $cloning, $frozen) = @_; |
74 | my ($keys, $values) = split(/;/, $frozen); |
75 | my @keys = split(/:/, $keys); |
76 | my @values = split(/:/, $values); |
77 | for (my $i = 0; $i < @keys; $i++) { |
78 | $self->{$keys[$i]} = $values[$i]; |
79 | } |
80 | $main::hash_hook2++; |
81 | } |
82 | |
83 | package TIED_ARRAY; |
84 | |
85 | sub TIEARRAY { |
86 | my $self = bless [], shift; |
87 | return $self; |
88 | } |
89 | |
90 | sub FETCH { |
91 | my $self = shift; |
92 | my ($idx) = @_; |
93 | $main::array_fetch++; |
94 | return $self->[$idx]; |
95 | } |
96 | |
97 | sub STORE { |
98 | my $self = shift; |
99 | my ($idx, $value) = @_; |
100 | $self->[$idx] = $value; |
101 | } |
102 | |
103 | sub FETCHSIZE { |
104 | my $self = shift; |
105 | return @{$self}; |
106 | } |
107 | |
108 | sub STORABLE_freeze { |
109 | my $self = shift; |
110 | $main::array_hook1++; |
111 | return join(":", @$self); |
112 | } |
113 | |
114 | sub STORABLE_thaw { |
115 | my ($self, $cloning, $frozen) = @_; |
116 | @$self = split(/:/, $frozen); |
117 | $main::array_hook2++; |
118 | } |
119 | |
120 | package TIED_SCALAR; |
121 | |
122 | sub TIESCALAR { |
123 | my $scalar; |
124 | my $self = bless \$scalar, shift; |
125 | return $self; |
126 | } |
127 | |
128 | sub FETCH { |
129 | my $self = shift; |
130 | $main::scalar_fetch++; |
131 | return $$self; |
132 | } |
133 | |
134 | sub STORE { |
135 | my $self = shift; |
136 | my ($value) = @_; |
137 | $$self = $value; |
138 | } |
139 | |
140 | sub STORABLE_freeze { |
141 | my $self = shift; |
142 | $main::scalar_hook1++; |
143 | return $$self; |
144 | } |
145 | |
146 | sub STORABLE_thaw { |
147 | my ($self, $cloning, $frozen) = @_; |
148 | $$self = $frozen; |
149 | $main::scalar_hook2++; |
150 | } |
151 | |
152 | package main; |
153 | |
154 | $a = 'toto'; |
155 | $b = \$a; |
156 | |
157 | $c = tie %hash, TIED_HASH; |
158 | $d = tie @array, TIED_ARRAY; |
159 | tie $scalar, TIED_SCALAR; |
160 | |
161 | $scalar = 'foo'; |
162 | $hash{'attribute'} = 'plain value'; |
163 | $array[0] = \$scalar; |
164 | $array[1] = $c; |
165 | $array[2] = \@array; |
166 | $array[3] = "plaine scalaire"; |
167 | |
168 | @tied = (\$scalar, \@array, \%hash); |
169 | %a = ('key', 'value', 1, 0, $a, $b, 'cvar', \$a, 'scalarref', \$scalar); |
170 | @a = ('first', 3, -4, -3.14159, 456, 4.5, $d, \$d, |
171 | $b, \$a, $a, $c, \$c, \%a, \@array, \%hash, \@tied); |
172 | |
173 | ok 1, defined($f = freeze(\@a)); |
174 | |
175 | $dumped = &dump(\@a); |
176 | ok 2, 1; |
177 | |
178 | $root = thaw($f); |
179 | ok 3, defined $root; |
180 | |
181 | $got = &dump($root); |
182 | ok 4, 1; |
183 | |
184 | ok 5, $got ne $dumped; # our hooks did not handle refs in array |
185 | |
186 | $g = freeze($root); |
187 | ok 6, length($f) == length($g); |
188 | |
189 | # Ensure the tied items in the retrieved image work |
190 | @old = ($scalar_fetch, $array_fetch, $hash_fetch); |
191 | @tied = ($tscalar, $tarray, $thash) = @{$root->[$#{$root}]}; |
192 | @type = qw(SCALAR ARRAY HASH); |
193 | |
194 | ok 7, tied $$tscalar; |
195 | ok 8, tied @{$tarray}; |
196 | ok 9, tied %{$thash}; |
197 | |
198 | @new = ($$tscalar, $tarray->[0], $thash->{'attribute'}); |
199 | @new = ($scalar_fetch, $array_fetch, $hash_fetch); |
200 | |
201 | # Tests 10..15 |
202 | for ($i = 0; $i < @new; $i++) { |
203 | ok 10 + 2*$i, $new[$i] == $old[$i] + 1; # Tests 10,12,14 |
204 | ok 11 + 2*$i, ref $tied[$i] eq $type[$i]; # Tests 11,13,15 |
205 | } |
206 | |
207 | ok 16, $$tscalar eq 'foo'; |
208 | ok 17, $tarray->[3] eq 'plaine scalaire'; |
209 | ok 18, $thash->{'attribute'} eq 'plain value'; |
210 | |
211 | # Ensure hooks were called |
212 | ok 19, ($scalar_hook1 && $scalar_hook2); |
213 | ok 20, ($array_hook1 && $array_hook2); |
214 | ok 21, ($hash_hook1 && $hash_hook2); |
215 | |