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1 | use strict; |
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2 | use Test::More tests => 99; |
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3 | use Test::Deep; |
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4 | use Test::Exception; |
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5 | use t::common qw( new_fh ); |
6 | |
7 | use_ok( 'DBM::Deep' ); |
8 | |
9 | my ($fh, $filename) = new_fh(); |
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10 | my $db1 = DBM::Deep->new( |
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11 | file => $filename, |
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12 | locking => 1, |
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13 | autoflush => 1, |
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14 | num_txns => 16, |
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15 | ); |
16 | |
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17 | my $db2 = DBM::Deep->new( |
18 | file => $filename, |
19 | locking => 1, |
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20 | autoflush => 1, |
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21 | num_txns => 16, |
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22 | ); |
23 | |
24 | $db1->{x} = 'y'; |
25 | is( $db1->{x}, 'y', "Before transaction, DB1's X is Y" ); |
26 | is( $db2->{x}, 'y', "Before transaction, DB2's X is Y" ); |
27 | |
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28 | cmp_bag( [ keys %$db1 ], [qw( x )], "DB1 keys correct" ); |
29 | cmp_bag( [ keys %$db2 ], [qw( x )], "DB2 keys correct" ); |
30 | |
31 | throws_ok { |
32 | $db1->rollback; |
33 | } qr/Cannot rollback without an active transaction/, "Attempting to rollback without a transaction throws an error"; |
34 | |
35 | throws_ok { |
36 | $db1->commit; |
37 | } qr/Cannot commit without an active transaction/, "Attempting to commit without a transaction throws an error"; |
38 | |
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39 | $db1->begin_work; |
40 | |
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41 | throws_ok { |
42 | $db1->begin_work; |
43 | } qr/Cannot begin_work within an active transaction/, "Attempting to begin_work within a transaction throws an error"; |
44 | |
45 | lives_ok { |
46 | $db1->rollback; |
47 | } "Rolling back an empty transaction is ok."; |
48 | |
49 | cmp_bag( [ keys %$db1 ], [qw( x )], "DB1 keys correct" ); |
50 | cmp_bag( [ keys %$db2 ], [qw( x )], "DB2 keys correct" ); |
51 | |
52 | $db1->begin_work; |
53 | |
54 | lives_ok { |
55 | $db1->commit; |
56 | } "Committing an empty transaction is ok."; |
57 | |
58 | cmp_bag( [ keys %$db1 ], [qw( x )], "DB1 keys correct" ); |
59 | cmp_bag( [ keys %$db2 ], [qw( x )], "DB2 keys correct" ); |
60 | |
61 | $db1->begin_work; |
62 | |
63 | cmp_bag( [ keys %$db1 ], [qw( x )], "DB1 keys correct" ); |
64 | cmp_bag( [ keys %$db2 ], [qw( x )], "DB2 keys correct" ); |
65 | |
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66 | is( $db1->{x}, 'y', "DB1 transaction started, no actions - DB1's X is Y" ); |
67 | is( $db2->{x}, 'y', "DB1 transaction started, no actions - DB2's X is Y" ); |
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68 | |
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69 | $db2->{x} = 'a'; |
70 | is( $db1->{x}, 'y', "Within DB1 transaction, DB1's X is still Y" ); |
71 | is( $db2->{x}, 'a', "Within DB1 transaction, DB2's X is now A" ); |
72 | |
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73 | $db1->{x} = 'z'; |
74 | is( $db1->{x}, 'z', "Within DB1 transaction, DB1's X is Z" ); |
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75 | is( $db2->{x}, 'a', "Within DB1 transaction, DB2's X is still A" ); |
76 | |
77 | $db1->{z} = 'a'; |
78 | is( $db1->{z}, 'a', "Within DB1 transaction, DB1's Z is A" ); |
79 | ok( !exists $db2->{z}, "Since z was added after the transaction began, DB2 doesn't see it." ); |
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80 | |
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81 | $db2->{other_x} = 'foo'; |
82 | is( $db2->{other_x}, 'foo', "DB2 set other_x within DB1's transaction, so DB2 can see it" ); |
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83 | ok( !exists $db1->{other_x}, "Since other_x was added after the transaction began, DB1 doesn't see it." ); |
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84 | |
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85 | # Reset to an expected value |
86 | $db2->{x} = 'y'; |
87 | is( $db1->{x}, 'z', "Within DB1 transaction, DB1's X is istill Z" ); |
88 | is( $db2->{x}, 'y', "Within DB1 transaction, DB2's X is now Y" ); |
89 | |
90 | cmp_bag( [ keys %$db1 ], [qw( x z )], "DB1 keys correct" ); |
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91 | cmp_bag( [ keys %$db2 ], [qw( x other_x )], "DB2 keys correct" ); |
92 | |
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93 | $db1->rollback; |
94 | |
95 | is( $db1->{x}, 'y', "After rollback, DB1's X is Y" ); |
96 | is( $db2->{x}, 'y', "After rollback, DB2's X is Y" ); |
97 | |
98 | is( $db1->{other_x}, 'foo', "After DB1 transaction is over, DB1 can see other_x" ); |
99 | is( $db2->{other_x}, 'foo', "After DB1 transaction is over, DB2 can still see other_x" ); |
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100 | |
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101 | $db1->begin_work; |
102 | |
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103 | cmp_bag( [ keys %$db1 ], [qw( x other_x )], "DB1 keys correct" ); |
104 | cmp_bag( [ keys %$db2 ], [qw( x other_x )], "DB2 keys correct" ); |
105 | |
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106 | is( $db1->{x}, 'y', "DB1 transaction started, no actions - DB1's X is Y" ); |
107 | is( $db2->{x}, 'y', "DB1 transaction started, no actions - DB2's X is Y" ); |
108 | |
109 | $db1->{x} = 'z'; |
110 | is( $db1->{x}, 'z', "Within DB1 transaction, DB1's X is Z" ); |
111 | is( $db2->{x}, 'y', "Within DB1 transaction, DB2's X is still Y" ); |
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112 | |
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113 | $db2->{other_x} = 'bar'; |
114 | is( $db2->{other_x}, 'bar', "DB2 set other_x within DB1's transaction, so DB2 can see it" ); |
115 | is( $db1->{other_x}, 'foo', "Since other_x was modified after the transaction began, DB1 doesn't see the change." ); |
116 | |
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117 | $db1->{z} = 'a'; |
118 | is( $db1->{z}, 'a', "Within DB1 transaction, DB1's Z is A" ); |
119 | ok( !exists $db2->{z}, "Since z was added after the transaction began, DB2 doesn't see it." ); |
120 | |
121 | cmp_bag( [ keys %$db1 ], [qw( x other_x z )], "DB1 keys correct" ); |
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122 | cmp_bag( [ keys %$db2 ], [qw( x other_x )], "DB2 keys correct" ); |
123 | |
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124 | $db1->commit; |
125 | |
126 | is( $db1->{x}, 'z', "After commit, DB1's X is Z" ); |
127 | is( $db2->{x}, 'z', "After commit, DB2's X is Z" ); |
128 | |
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129 | is( $db1->{z}, 'a', "After commit, DB1's Z is A" ); |
130 | is( $db2->{z}, 'a', "After commit, DB2's Z is A" ); |
131 | |
132 | is( $db1->{other_x}, 'bar', "After commit, DB1's other_x is bar" ); |
133 | is( $db2->{other_x}, 'bar', "After commit, DB2's other_x is bar" ); |
134 | |
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135 | $db1->begin_work; |
136 | |
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137 | cmp_bag( [ keys %$db1 ], [qw( x z other_x )], "DB1 keys correct" ); |
138 | cmp_bag( [ keys %$db2 ], [qw( x z other_x )], "DB2 keys correct" ); |
139 | |
140 | is( $db1->{x}, 'z', "After commit, DB1's X is Z" ); |
141 | is( $db2->{x}, 'z', "After commit, DB2's X is Z" ); |
142 | |
143 | is( $db1->{z}, 'a', "After commit, DB1's Z is A" ); |
144 | is( $db2->{z}, 'a', "After commit, DB2's Z is A" ); |
145 | |
146 | is( $db1->{other_x}, 'bar', "After begin_work, DB1's other_x is still bar" ); |
147 | is( $db2->{other_x}, 'bar', "After begin_work, DB2's other_x is still bar" ); |
148 | |
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149 | delete $db2->{other_x}; |
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150 | ok( !exists $db2->{other_x}, "DB2 deleted other_x in DB1's transaction, so it can't see it anymore" ); |
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151 | is( $db1->{other_x}, 'bar', "Since other_x was deleted after the transaction began, DB1 still sees it." ); |
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152 | |
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153 | cmp_bag( [ keys %$db1 ], [qw( x z other_x )], "DB1 keys correct" ); |
154 | cmp_bag( [ keys %$db2 ], [qw( x z )], "DB2 keys correct" ); |
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155 | |
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156 | delete $db1->{x}; |
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157 | ok( !exists $db1->{x}, "DB1 deleted X in a transaction, so it can't see it anymore" ); |
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158 | is( $db2->{x}, 'z', "But, DB2 can still see it" ); |
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159 | |
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160 | cmp_bag( [ keys %$db1 ], [qw( other_x z )], "DB1 keys correct" ); |
161 | cmp_bag( [ keys %$db2 ], [qw( x z )], "DB2 keys correct" ); |
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162 | |
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163 | $db1->rollback; |
164 | |
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165 | ok( !exists $db2->{other_x}, "It's still deleted for DB2" ); |
166 | ok( !exists $db1->{other_x}, "And now DB1 sees the deletion" ); |
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167 | |
168 | is( $db1->{x}, 'z', "The transaction was rolled back, so DB1 can see X now" ); |
169 | is( $db2->{x}, 'z', "DB2 can still see it" ); |
170 | |
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171 | cmp_bag( [ keys %$db1 ], [qw( x z )], "DB1 keys correct" ); |
172 | cmp_bag( [ keys %$db2 ], [qw( x z )], "DB2 keys correct" ); |
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173 | |
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174 | $db1->begin_work; |
175 | |
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176 | delete $db1->{x}; |
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177 | ok( !exists $db1->{x}, "DB1 deleted X in a transaction, so it can't see it anymore" ); |
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178 | |
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179 | is( $db2->{x}, 'z', "But, DB2 can still see it" ); |
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180 | |
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181 | cmp_bag( [ keys %$db1 ], [qw( z )], "DB1 keys correct" ); |
182 | cmp_bag( [ keys %$db2 ], [qw( x z )], "DB2 keys correct" ); |
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183 | |
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184 | $db1->commit; |
185 | |
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186 | ok( !exists $db1->{x}, "The transaction was committed, so DB1 still deleted X" ); |
187 | ok( !exists $db2->{x}, "DB2 can now see the deletion of X" ); |
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188 | |
189 | $db1->{foo} = 'bar'; |
190 | is( $db1->{foo}, 'bar', "Set foo to bar in DB1" ); |
191 | is( $db2->{foo}, 'bar', "Set foo to bar in DB2" ); |
192 | |
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193 | cmp_bag( [ keys %$db1 ], [qw( foo z )], "DB1 keys correct" ); |
194 | cmp_bag( [ keys %$db2 ], [qw( foo z )], "DB2 keys correct" ); |
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195 | |
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196 | $db1->begin_work; |
197 | |
198 | %$db1 = (); # clear() |
199 | ok( !exists $db1->{foo}, "Cleared foo" ); |
200 | is( $db2->{foo}, 'bar', "But in DB2, we can still see it" ); |
201 | |
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202 | cmp_bag( [ keys %$db1 ], [qw()], "DB1 keys correct" ); |
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203 | cmp_bag( [ keys %$db2 ], [qw( foo z )], "DB2 keys correct" ); |
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204 | |
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205 | $db1->rollback; |
206 | |
207 | is( $db1->{foo}, 'bar', "Rollback means 'foo' is still there" ); |
208 | is( $db2->{foo}, 'bar', "Rollback means 'foo' is still there" ); |
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209 | |
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210 | cmp_bag( [ keys %$db1 ], [qw( foo z )], "DB1 keys correct" ); |
211 | cmp_bag( [ keys %$db2 ], [qw( foo z )], "DB2 keys correct" ); |
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212 | |
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213 | SKIP: { |
214 | skip "Optimize tests skipped on Win32", 5 |
215 | if $^O eq 'MSWin32' || $^O eq 'cygwin'; |
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216 | |
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217 | $db1->optimize; |
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218 | |
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219 | is( $db1->{foo}, 'bar', 'After optimize, everything is ok' ); |
220 | is( $db2->{foo}, 'bar', 'After optimize, everything is ok' ); |
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221 | |
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222 | is( $db1->{z}, 'a', 'After optimize, everything is ok' ); |
223 | is( $db2->{z}, 'a', 'After optimize, everything is ok' ); |
224 | |
225 | cmp_bag( [ keys %$db1 ], [qw( foo z )], "DB1 keys correct" ); |
226 | cmp_bag( [ keys %$db2 ], [qw( foo z )], "DB2 keys correct" ); |
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227 | |
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228 | $db1->begin_work; |
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229 | |
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230 | cmp_ok( $db1->_engine->trans_id, '==', 1, "Transaction ID has been reset after optimize" ); |
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231 | |
232 | $db1->rollback; |
233 | } |
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234 | |
235 | __END__ |
236 | |
237 | Tests to add: |
238 | * Two transactions running at the same time |
239 | * Doing a clear on the head while a transaction is running |