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