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1 | use strict; |
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2 | use Test::More tests => 47; |
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3 | use Test::Deep; |
4 | use t::common qw( new_fh ); |
5 | |
6 | use_ok( 'DBM::Deep' ); |
7 | |
8 | my ($fh, $filename) = new_fh(); |
9 | my $db1 = DBM::Deep->new( |
10 | file => $filename, |
11 | locking => 1, |
12 | autoflush => 1, |
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13 | num_txns => 16, |
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14 | type => DBM::Deep->TYPE_ARRAY, |
15 | ); |
16 | |
17 | my $db2 = DBM::Deep->new( |
18 | file => $filename, |
19 | locking => 1, |
20 | autoflush => 1, |
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21 | num_txns => 16, |
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22 | type => DBM::Deep->TYPE_ARRAY, |
23 | ); |
24 | |
25 | $db1->[0] = 'y'; |
26 | is( $db1->[0], 'y', "Before transaction, DB1's 0 is Y" ); |
27 | is( $db2->[0], 'y', "Before transaction, DB2's 0 is Y" ); |
28 | |
29 | $db1->begin_work; |
30 | |
31 | is( $db1->[0], 'y', "DB1 transaction started, no actions - DB1's 0 is Y" ); |
32 | is( $db2->[0], 'y', "DB1 transaction started, no actions - DB2's 0 is Y" ); |
33 | |
34 | $db1->[0] = 'z'; |
35 | is( $db1->[0], 'z', "Within DB1 transaction, DB1's 0 is Z" ); |
36 | is( $db2->[0], 'y', "Within DB1 transaction, DB2's 0 is still Y" ); |
37 | |
38 | $db2->[1] = 'foo'; |
39 | is( $db2->[1], 'foo', "DB2 set 1 within DB1's transaction, so DB2 can see it" ); |
40 | ok( !exists $db1->[1], "Since 1 was added after the transaction began, DB1 doesn't see it." ); |
41 | |
42 | cmp_ok( scalar(@$db1), '==', 1, "DB1 has 1 element" ); |
43 | cmp_ok( scalar(@$db2), '==', 2, "DB2 has 2 elements" ); |
44 | |
45 | $db1->rollback; |
46 | |
47 | is( $db1->[0], 'y', "After rollback, DB1's 0 is Y" ); |
48 | is( $db2->[0], 'y', "After rollback, DB2's 0 is Y" ); |
49 | |
50 | is( $db1->[1], 'foo', "After DB1 transaction is over, DB1 can see 1" ); |
51 | is( $db2->[1], 'foo', "After DB1 transaction is over, DB2 can still see 1" ); |
52 | |
53 | cmp_ok( scalar(@$db1), '==', 2, "DB1 now has 2 elements" ); |
54 | cmp_ok( scalar(@$db2), '==', 2, "DB2 still has 2 elements" ); |
55 | |
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56 | $db1->begin_work; |
57 | |
58 | is( $db1->[0], 'y', "DB1 transaction started, no actions - DB1's 0 is Y" ); |
59 | is( $db2->[0], 'y', "DB1 transaction started, no actions - DB2's 0 is Y" ); |
60 | |
61 | $db1->[2] = 'z'; |
62 | is( $db1->[2], 'z', "Within DB1 transaction, DB1's 2 is Z" ); |
63 | ok( !exists $db2->[2], "Within DB1 transaction, DB2 cannot see 2" ); |
64 | |
65 | cmp_ok( scalar(@$db1), '==', 3, "DB1 has 3 elements" ); |
66 | cmp_ok( scalar(@$db2), '==', 2, "DB2 has 2 elements" ); |
67 | |
68 | $db1->commit; |
69 | |
70 | is( $db1->[0], 'y', "After rollback, DB1's 0 is Y" ); |
71 | is( $db2->[0], 'y', "After rollback, DB2's 0 is Y" ); |
72 | |
73 | is( $db1->[2], 'z', "After DB1 transaction is over, DB1 can still see 2" ); |
74 | is( $db2->[2], 'z', "After DB1 transaction is over, DB2 can now see 2" ); |
75 | |
76 | cmp_ok( scalar(@$db1), '==', 3, "DB1 now has 2 elements" ); |
77 | cmp_ok( scalar(@$db2), '==', 3, "DB2 still has 2 elements" ); |
78 | |
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79 | $db1->begin_work; |
80 | |
81 | push @$db1, 'foo'; |
82 | unshift @$db1, 'bar'; |
83 | |
84 | cmp_ok( scalar(@$db1), '==', 5, "DB1 now has 5 elements" ); |
85 | cmp_ok( scalar(@$db2), '==', 3, "DB2 still has 3 elements" ); |
86 | |
87 | is( $db1->[0], 'bar' ); |
88 | is( $db1->[-1], 'foo' ); |
89 | |
90 | $db1->rollback; |
91 | |
92 | cmp_ok( scalar(@$db1), '==', 3, "DB1 is back to 3 elements" ); |
93 | cmp_ok( scalar(@$db2), '==', 3, "DB2 still has 3 elements" ); |
94 | |
95 | $db1->begin_work; |
96 | |
97 | push @$db1, 'foo'; |
98 | unshift @$db1, 'bar'; |
99 | |
100 | cmp_ok( scalar(@$db1), '==', 5, "DB1 now has 5 elements" ); |
101 | cmp_ok( scalar(@$db2), '==', 3, "DB2 still has 3 elements" ); |
102 | |
103 | $db1->commit; |
104 | |
105 | cmp_ok( scalar(@$db1), '==', 5, "DB1 is still at 5 elements" ); |
106 | cmp_ok( scalar(@$db2), '==', 5, "DB2 now has 5 elements" ); |
107 | |
108 | is( $db1->[0], 'bar' ); |
109 | is( $db1->[-1], 'foo' ); |
110 | |
111 | is( $db2->[0], 'bar' ); |
112 | is( $db2->[-1], 'foo' ); |
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113 | |
114 | $db1->begin_work; |
115 | |
116 | @$db1 = (); # clear() |
117 | |
118 | cmp_ok( scalar(@$db1), '==', 0, "DB1 now has 0 elements" ); |
119 | cmp_ok( scalar(@$db2), '==', 5, "DB2 still has 5 elements" ); |
120 | |
121 | $db1->rollback; |
122 | |
123 | cmp_ok( scalar(@$db1), '==', 5, "DB1 now has 5 elements" ); |
124 | cmp_ok( scalar(@$db2), '==', 5, "DB2 still has 5 elements" ); |
125 | |