Added tests for 3 transactions at the same time

diff --git a/t/35_transaction_multiple.t b/t/35_transaction_multiple.t
new file mode 100644 (file)
index 0000000..659d9a8
--- /dev/null
+++ b/t/35_transaction_multiple.t
@@ -0,0 +1,111 @@
+use strict;
+use Test::More tests => 51;
+use Test::Deep;
+use t::common qw( new_fh );
+
+use_ok( 'DBM::Deep' );
+
+my ($fh, $filename) = new_fh();
+my $db1 = DBM::Deep->new(
+    file => $filename,
+    locking => 1,
+    autoflush => 1,
+);
+
+my $db2 = DBM::Deep->new(
+    file => $filename,
+    locking => 1,
+    autoflush => 1,
+);
+
+my $db3 = DBM::Deep->new(
+    file => $filename,
+    locking => 1,
+    autoflush => 1,
+);
+
+$db1->{foo} = 'bar';
+is( $db1->{foo}, 'bar', "Before transaction, DB1's foo is bar" );
+is( $db2->{foo}, 'bar', "Before transaction, DB2's foo is bar" );
+is( $db3->{foo}, 'bar', "Before transaction, DB3's foo is bar" );
+
+$db1->begin_work;
+
+is( $db1->{foo}, 'bar', "Before transaction work, DB1's foo is bar" );
+is( $db2->{foo}, 'bar', "Before transaction work, DB2's foo is bar" );
+is( $db3->{foo}, 'bar', "Before transaction work, DB3's foo is bar" );
+
+$db1->{foo} = 'bar2';
+
+is( $db1->{foo}, 'bar2', "After DB1 foo to bar2, DB1's foo is bar2" );
+is( $db2->{foo}, 'bar', "After DB1 foo to bar2, DB2's foo is bar" );
+is( $db3->{foo}, 'bar', "After DB1 foo to bar2, DB3's foo is bar" );
+
+$db1->{bar} = 'foo';
+
+ok(  exists $db1->{bar}, "After DB1 set bar to foo, DB1's bar exists" );
+ok( !exists $db2->{bar}, "After DB1 set bar to foo, DB2's bar doesn't exist" );
+ok( !exists $db3->{bar}, "After DB1 set bar to foo, DB3's bar doesn't exist" );
+
+$db2->begin_work;
+
+is( $db1->{foo}, 'bar2', "After DB2 transaction begin, DB1's foo is bar2" );
+is( $db2->{foo}, 'bar', "After DB2 transaction begin, DB2's foo is bar" );
+is( $db3->{foo}, 'bar', "After DB2 transaction begin, DB3's foo is bar" );
+
+ok(  exists $db1->{bar}, "After DB2 transaction begin, DB1's bar exists" );
+ok( !exists $db2->{bar}, "After DB2 transaction begin, DB2's bar doesn't exist" );
+ok( !exists $db3->{bar}, "After DB2 transaction begin, DB3's bar doesn't exist" );
+
+$db2->{foo} = 'bar333';
+
+is( $db1->{foo}, 'bar2', "After DB2 foo to bar2, DB1's foo is bar2" );
+is( $db2->{foo}, 'bar333', "After DB2 foo to bar2, DB2's foo is bar333" );
+is( $db3->{foo}, 'bar', "After DB2 foo to bar2, DB3's foo is bar" );
+
+$db2->{bar} = 'mybar';
+
+ok(  exists $db1->{bar}, "After DB2 set bar to mybar, DB1's bar exists" );
+ok(  exists $db2->{bar}, "After DB2 set bar to mybar, DB2's bar exists" );
+ok( !exists $db3->{bar}, "After DB2 set bar to mybar, DB3's bar doesn't exist" );
+
+is( $db1->{bar}, 'foo', "DB1's bar is still foo" );
+is( $db2->{bar}, 'mybar', "DB2's bar is now mybar" );
+
+$db2->{mykey} = 'myval';
+
+ok( !exists $db1->{mykey}, "After DB2 set mykey to myval, DB1's mykey doesn't exist" );
+ok(  exists $db2->{mykey}, "After DB2 set mykey to myval, DB2's mykey exists" );
+ok( !exists $db3->{mykey}, "After DB2 set mykey to myval, DB3's mykey doesn't exist" );
+
+cmp_bag( [ keys %$db1 ], [qw( foo bar )], "DB1 keys correct" );
+cmp_bag( [ keys %$db2 ], [qw( foo bar mykey )], "DB2 keys correct" );
+cmp_bag( [ keys %$db3 ], [qw( foo )], "DB3 keys correct" );
+
+$db1->commit;
+
+is( $db1->{foo}, 'bar2', "After DB1 commit, DB1's foo is bar2" );
+is( $db2->{foo}, 'bar333', "After DB1 commit, DB2's foo is bar333" );
+is( $db3->{foo}, 'bar2', "After DB1 commit, DB3's foo is bar2" );
+
+is( $db1->{bar}, 'foo', "DB1's bar is still foo" );
+is( $db2->{bar}, 'mybar', "DB2's bar is still mybar" );
+is( $db3->{bar}, 'foo', "DB3's bar is now foo" );
+
+cmp_bag( [ keys %$db1 ], [qw( foo bar )], "DB1 keys correct" );
+cmp_bag( [ keys %$db2 ], [qw( foo bar mykey )], "DB2 keys correct" );
+cmp_bag( [ keys %$db3 ], [qw( foo bar )], "DB3 keys correct" );
+
+$db2->commit;
+
+is( $db1->{foo}, 'bar333', "After DB2 commit, DB1's foo is bar333" );
+is( $db2->{foo}, 'bar333', "After DB2 commit, DB2's foo is bar333" );
+is( $db3->{foo}, 'bar333', "After DB2 commit, DB3's foo is bar333" );
+
+is( $db1->{bar}, 'mybar', "DB1's bar is now mybar" );
+is( $db2->{bar}, 'mybar', "DB2's bar is still mybar" );
+is( $db3->{bar}, 'mybar', "DB3's bar is now mybar" );
+
+cmp_bag( [ keys %$db1 ], [qw( foo bar mykey )], "DB1 keys correct" );
+cmp_bag( [ keys %$db2 ], [qw( foo bar mykey )], "DB2 keys correct" );
+cmp_bag( [ keys %$db3 ], [qw( foo bar mykey )], "DB3 keys correct" );