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|---|
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1 | use strict; |
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2 | use Test::More tests => 31; |
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3 | use Test::Exception; |
| 4 | use t::common qw( new_fh ); |
| 5 | |
| 6 | use_ok( 'DBM::Deep' ); |
| 7 | |
| 8 | my ($fh, $filename) = new_fh(); |
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9 | my $db1 = DBM::Deep->new( |
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10 | file => $filename, |
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11 | locking => 1, |
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12 | autoflush => 1, |
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13 | ); |
| 14 | |
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15 | my $db2 = DBM::Deep->new( |
| 16 | file => $filename, |
| 17 | locking => 1, |
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18 | autoflush => 1, |
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19 | ); |
| 20 | |
| 21 | $db1->{x} = 'y'; |
| 22 | is( $db1->{x}, 'y', "Before transaction, DB1's X is Y" ); |
| 23 | is( $db2->{x}, 'y', "Before transaction, DB2's X is Y" ); |
| 24 | |
| 25 | $db1->begin_work; |
| 26 | |
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27 | is( $db1->{x}, 'y', "DB1 transaction started, no actions - DB1's X is Y" ); |
| 28 | is( $db2->{x}, 'y', "DB1 transaction started, no actions - DB2's X is Y" ); |
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29 | |
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30 | $db1->{x} = 'z'; |
| 31 | is( $db1->{x}, 'z', "Within DB1 transaction, DB1's X is Z" ); |
| 32 | is( $db2->{x}, 'y', "Within DB1 transaction, DB2's X is still Y" ); |
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33 | |
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34 | $db2->{other_x} = 'foo'; |
| 35 | is( $db2->{other_x}, 'foo', "DB2 set other_x within DB1's transaction, so DB2 can see it" ); |
| 36 | is( $db1->{other_x}, undef, "Since other_x was added after the transaction began, DB1 doesn't see it." ); |
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37 | |
| 38 | $db1->rollback; |
| 39 | |
| 40 | is( $db1->{x}, 'y', "After rollback, DB1's X is Y" ); |
| 41 | is( $db2->{x}, 'y', "After rollback, DB2's X is Y" ); |
| 42 | |
| 43 | is( $db1->{other_x}, 'foo', "After DB1 transaction is over, DB1 can see other_x" ); |
| 44 | is( $db2->{other_x}, 'foo', "After DB1 transaction is over, DB2 can still see other_x" ); |
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45 | |
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46 | $db1->begin_work; |
| 47 | |
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48 | is( $db1->{x}, 'y', "DB1 transaction started, no actions - DB1's X is Y" ); |
| 49 | is( $db2->{x}, 'y', "DB1 transaction started, no actions - DB2's X is Y" ); |
| 50 | |
| 51 | $db1->{x} = 'z'; |
| 52 | is( $db1->{x}, 'z', "Within DB1 transaction, DB1's X is Z" ); |
| 53 | is( $db2->{x}, 'y', "Within DB1 transaction, DB2's X is still Y" ); |
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54 | |
| 55 | $db1->commit; |
| 56 | |
| 57 | is( $db1->{x}, 'z', "After commit, DB1's X is Z" ); |
| 58 | is( $db2->{x}, 'z', "After commit, DB2's X is Z" ); |
| 59 | |
| 60 | $db1->begin_work; |
| 61 | |
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62 | delete $db2->{other_x}; |
| 63 | is( $db2->{other_x}, undef, "DB2 deleted other_x in DB1's transaction, so it can't see it anymore" ); |
| 64 | is( $db1->{other_x}, 'foo', "Since other_x was deleted after the transaction began, DB1 still sees it." ); |
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65 | |
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66 | delete $db1->{x}; |
| 67 | is( $db1->{x}, undef, "DB1 deleted X in a transaction, so it can't see it anymore" ); |
| 68 | is( $db2->{x}, 'z', "But, DB2 can still see it" ); |
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69 | |
| 70 | $db1->rollback; |
| 71 | |
| 72 | is( $db2->{other_x}, undef, "It's still deleted for DB2" ); |
| 73 | is( $db1->{other_x}, undef, "And now DB1 sees the deletion" ); |
| 74 | |
| 75 | is( $db1->{x}, 'z', "The transaction was rolled back, so DB1 can see X now" ); |
| 76 | is( $db2->{x}, 'z', "DB2 can still see it" ); |
| 77 | |
| 78 | $db1->begin_work; |
| 79 | |
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80 | delete $db1->{x}; |
| 81 | is( $db1->{x}, undef, "DB1 deleted X in a transaction, so it can't see it anymore" ); |
| 82 | is( $db2->{x}, 'z', "But, DB2 can still see it" ); |
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83 | |
| 84 | $db1->commit; |
| 85 | |
| 86 | is( $db1->{x}, undef, "The transaction was committed, so DB1 still deleted X" ); |
| 87 | is( $db2->{x}, undef, "DB2 can now see the deletion of X" ); |
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