+use strict;
+use DBI;
+use Test::More;
+
+if (defined $ENV{DBI_DSN}) {
+ plan tests => 3;
+} else {
+ plan skip_all => 'cannot test without DB info';
+}
+
+my $dbh = DBI->connect($ENV{DBI_DSN}, $ENV{DBI_USER}, $ENV{DBI_PASS},
+ {RaiseError => 1, AutoCommit => 0}
+ );
+ok(defined $dbh,
+ 'connect with transaction'
+ );
+
+ok($dbh->disconnect(),
+ 'disconnect'
+ );
+
+$dbh = DBI->connect($ENV{DBI_DSN}, $ENV{DBI_USER}, $ENV{DBI_PASS},
+ {RaiseError => 1, AutoCommit => 0}
+ );
+
+$dbh->disconnect();
+$dbh->disconnect();
+$dbh->disconnect();
+ok($dbh->disconnect(),
+ 'disconnect on already disconnected dbh'
+ );