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1 | ## |
2 | # DBM::Deep Test |
3 | ## |
4 | use strict; |
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5 | use Test::More tests => 49; |
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6 | use Test::Exception; |
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7 | use t::common qw( new_fh ); |
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8 | |
9 | use_ok( 'DBM::Deep' ); |
10 | |
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11 | my ($fh, $filename) = new_fh(); |
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12 | my $db = DBM::Deep->new( |
13 | file => $filename, |
14 | fh => $fh, |
15 | ); |
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16 | |
17 | ## |
18 | # put/get key |
19 | ## |
20 | $db->{key1} = "value1"; |
21 | is( $db->get("key1"), "value1", "get() works with hash assignment" ); |
22 | is( $db->fetch("key1"), "value1", "... fetch() works with hash assignment" ); |
23 | is( $db->{key1}, "value1", "... and hash-access also works" ); |
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24 | |
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25 | $db->put("key2", undef); |
26 | is( $db->get("key2"), undef, "get() works with put()" ); |
27 | is( $db->fetch("key2"), undef, "... fetch() works with put()" ); |
28 | is( $db->{key2}, undef, "... and hash-access also works" ); |
29 | |
30 | $db->store( "key3", "value3" ); |
31 | is( $db->get("key3"), "value3", "get() works with store()" ); |
32 | is( $db->fetch("key3"), "value3", "... fetch() works with put()" ); |
33 | is( $db->{key3}, 'value3', "... and hash-access also works" ); |
34 | |
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35 | # Verify that the keyval pairs are still correct. |
36 | is( $db->{key1}, "value1", "Key1 is still correct" ); |
37 | is( $db->{key2}, undef, "Key2 is still correct" ); |
38 | is( $db->{key3}, 'value3', "Key3 is still correct" ); |
39 | |
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40 | ok( $db->exists("key1"), "exists() function works" ); |
41 | ok( exists $db->{key2}, "exists() works against tied hash" ); |
42 | |
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43 | ok( !exists $db->{key4}, "exists() function works for keys that aren't there" ); |
44 | is( $db->{key4}, undef, "Autovivified key4" ); |
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45 | ok( exists $db->{key4}, "Autovivified key4 now exists" ); |
46 | |
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47 | delete $db->{key4}; |
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48 | |
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49 | ok( !exists $db->{key4}, "And key4 doesn't exists anymore" ); |
50 | |
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51 | # Keys will be done via an iterator that keeps a breadcrumb trail of the last |
52 | # key it provided. There will also be an "edit revision number" on the |
53 | # reference so that resetting the iterator can be done. |
54 | # |
55 | # Q: How do we make sure that the iterator is unique? Is it supposed to be? |
56 | |
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57 | ## |
58 | # count keys |
59 | ## |
60 | is( scalar keys %$db, 3, "keys() works against tied hash" ); |
61 | |
62 | ## |
63 | # step through keys |
64 | ## |
65 | my $temphash = {}; |
66 | while ( my ($key, $value) = each %$db ) { |
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67 | $temphash->{$key} = $value; |
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68 | } |
69 | |
70 | is( $temphash->{key1}, 'value1', "First key copied successfully using tied interface" ); |
71 | is( $temphash->{key2}, undef, "Second key copied successfully" ); |
72 | is( $temphash->{key3}, 'value3', "Third key copied successfully" ); |
73 | |
74 | $temphash = {}; |
75 | my $key = $db->first_key(); |
76 | while ($key) { |
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77 | $temphash->{$key} = $db->get($key); |
78 | $key = $db->next_key($key); |
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79 | } |
80 | |
81 | is( $temphash->{key1}, 'value1', "First key copied successfully using OO interface" ); |
82 | is( $temphash->{key2}, undef, "Second key copied successfully" ); |
83 | is( $temphash->{key3}, 'value3', "Third key copied successfully" ); |
84 | |
85 | ## |
86 | # delete keys |
87 | ## |
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88 | is( delete $db->{key2}, undef, "delete through tied inteface works" ); |
89 | is( $db->delete("key1"), 'value1', "delete through OO inteface works" ); |
90 | is( $db->{key3}, 'value3', "The other key is still there" ); |
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91 | ok( !exists $db->{key1}, "key1 doesn't exist" ); |
92 | ok( !exists $db->{key2}, "key2 doesn't exist" ); |
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93 | |
94 | is( scalar keys %$db, 1, "After deleting two keys, 1 remains" ); |
95 | |
96 | ## |
97 | # delete all keys |
98 | ## |
99 | ok( $db->clear(), "clear() returns true" ); |
100 | |
101 | is( scalar keys %$db, 0, "After clear(), everything is removed" ); |
102 | |
103 | ## |
104 | # replace key |
105 | ## |
106 | $db->put("key1", "value1"); |
107 | is( $db->get("key1"), "value1", "Assignment still works" ); |
108 | |
109 | $db->put("key1", "value2"); |
110 | is( $db->get("key1"), "value2", "... and replacement works" ); |
111 | |
112 | $db->put("key1", "value222222222222222222222222"); |
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113 | is( $db->get("key1"), "value222222222222222222222222", "We set a value before closing the file" ); |
114 | |
115 | ## |
116 | # Make sure DB still works after closing / opening |
117 | ## |
118 | undef $db; |
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119 | open $fh, '+<', $filename; |
120 | $db = DBM::Deep->new( |
121 | file => $filename, |
122 | fh => $fh, |
123 | ); |
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124 | is( $db->get("key1"), "value222222222222222222222222", "The value we set is still there after closure" ); |
125 | |
126 | ## |
127 | # Make sure keys are still fetchable after replacing values |
128 | # with smaller ones (bug found by John Cardenas, DBM::Deep 0.93) |
129 | ## |
130 | $db->clear(); |
131 | $db->put("key1", "long value here"); |
132 | $db->put("key2", "longer value here"); |
133 | |
134 | $db->put("key1", "short value"); |
135 | $db->put("key2", "shorter v"); |
136 | |
137 | my $first_key = $db->first_key(); |
138 | my $next_key = $db->next_key($first_key); |
139 | |
140 | ok( |
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141 | (($first_key eq "key1") || ($first_key eq "key2")) && |
142 | (($next_key eq "key1") || ($next_key eq "key2")) && |
143 | ($first_key ne $next_key) |
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144 | ,"keys() still works if you replace long values with shorter ones" |
145 | ); |
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146 | |
147 | # Test autovivification |
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148 | $db->{unknown}{bar} = 1; |
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149 | ok( $db->{unknown}, 'Autovivified hash exists' ); |
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150 | cmp_ok( $db->{unknown}{bar}, '==', 1, 'And the value stored is there' ); |
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151 | |
152 | # Test failures |
153 | throws_ok { |
154 | $db->fetch(); |
155 | } qr/Cannot use an undefined hash key/, "FETCH fails on an undefined key"; |
156 | |
157 | throws_ok { |
158 | $db->fetch(undef); |
159 | } qr/Cannot use an undefined hash key/, "FETCH fails on an undefined key"; |
160 | |
161 | throws_ok { |
162 | $db->store(); |
163 | } qr/Cannot use an undefined hash key/, "STORE fails on an undefined key"; |
164 | |
165 | throws_ok { |
166 | $db->store(undef, undef); |
167 | } qr/Cannot use an undefined hash key/, "STORE fails on an undefined key"; |
168 | |
169 | throws_ok { |
170 | $db->delete(); |
171 | } qr/Cannot use an undefined hash key/, "DELETE fails on an undefined key"; |
172 | |
173 | throws_ok { |
174 | $db->delete(undef); |
175 | } qr/Cannot use an undefined hash key/, "DELETE fails on an undefined key"; |
176 | |
177 | throws_ok { |
178 | $db->exists(); |
179 | } qr/Cannot use an undefined hash key/, "EXISTS fails on an undefined key"; |
180 | |
181 | throws_ok { |
182 | $db->exists(undef); |
183 | } qr/Cannot use an undefined hash key/, "EXISTS fails on an undefined key"; |