#!perl -w
#
# $Id$
#
# This is testing the transaction support.
#
use DBI;
use Test::More;
use lib 't', '.';
require 'lib.pl';
use vars qw($got_warning $test_dsn $test_user $test_password $table);
my $dbh;
eval {$dbh= DBI->connect($test_dsn, $test_user, $test_password,
{ RaiseError => 1, PrintError => 1, AutoCommit => 0 });};
if ($@) {
plan skip_all =>
"ERROR: $DBI::errstr. Can't continue test";
}
sub catch_warning ($) {
$got_warning = 1;
}
sub num_rows($$$) {
my($dbh, $table, $num) = @_;
my($sth, $got);
if (!($sth = $dbh->prepare("SELECT * FROM $table"))) {
return "Failed to prepare: err " . $dbh->err . ", errstr "
. $dbh->errstr;
}
if (!$sth->execute) {
return "Failed to execute: err " . $dbh->err . ", errstr "
. $dbh->errstr;
}
$got = 0;
while ($sth->fetchrow_arrayref) {
++$got;
}
if ($got ne $num) {
return "Wrong result: Expected $num rows, got $got.\n";
}
return '';
}
$have_transactions = have_transactions($dbh);
my $engine= $have_transactions ? 'InnoDB' : 'MyISAM';
if ($have_transactions) {
plan tests => 21;
ok $dbh->do("DROP TABLE IF EXISTS $table"), "drop table if exists $table";
my $create =<<EOT;
CREATE TABLE $table (
id INT(4) NOT NULL default 0,
name VARCHAR(64) NOT NULL default ''
) ENGINE=$engine
EOT
ok $dbh->do($create), 'create $table';
ok !$dbh->{AutoCommit}, "\$dbh->{AutoCommit} not defined |$dbh->{AutoCommit}|";
$dbh->{AutoCommit} = 0;
ok !$dbh->err;
ok !$dbh->errstr;
ok !$dbh->{AutoCommit};
ok $dbh->do("INSERT INTO $table VALUES (1, 'Jochen')"),
"insert into $table (1, 'Jochen')";
my $msg;
$msg = num_rows($dbh, $table, 1);
ok !$msg;
ok $dbh->rollback, 'rollback';
$msg = num_rows($dbh, $table, 0);
ok !$msg;
ok $dbh->do("DELETE FROM $table WHERE id = 1"), "delete from $table where id = 1";
$msg = num_rows($dbh, $table, 0);
ok !$msg;
ok $dbh->commit, 'commit';
$msg = num_rows($dbh, $table, 0);
ok !$msg;
# Check auto rollback after disconnect
ok $dbh->do("INSERT INTO $table VALUES (1, 'Jochen')");
$msg = num_rows($dbh, $table, 1);
ok !$msg;
ok $dbh->disconnect;
ok ($dbh = DBI->connect($test_dsn, $test_user, $test_password));
ok $dbh, "connected";
$msg = num_rows($dbh, $table, 0);
ok !$msg;
ok $dbh->{AutoCommit}, "\$dbh->{AutoCommit} $dbh->{AutoCommit}";
}
else {
plan tests => 13;
ok $dbh->do("DROP TABLE IF EXISTS $table"), "drop table if exists $table";
my $create =<<EOT;
CREATE TABLE $table (
id INT(4) NOT NULL default 0,
name VARCHAR(64) NOT NULL default ''
) ENGINE=$engine
EOT
ok $dbh->do($create), 'create $table';
# Tests for databases that don't support transactions
# Check whether AutoCommit mode works.
ok $dbh->do("INSERT INTO $table VALUES (1, 'Jochen')");
$msg = num_rows($dbh, $table, 1);
ok !$msg;
ok $dbh->disconnect;
ok ($dbh = DBI->connect($test_dsn, $test_user, $test_password));
$msg = num_rows($dbh, $table, 1);
ok !$msg;
ok $dbh->do("INSERT INTO $table VALUES (2, 'Tim')");
my $result;
$@ = '';
$SIG{__WARN__} = \&catch_warning;
$got_warning = 0;
eval { $result = $dbh->commit; };
$SIG{__WARN__} = 'DEFAULT';
ok $got_warning;
# Check whether rollback issues a warning in AutoCommit mode
# We accept error messages as being legal, because the DBI
# requirement of just issuing a warning seems scary.
ok $dbh->do("INSERT INTO $table VALUES (3, 'Alligator')");
$@ = '';
$SIG{__WARN__} = \&catch_warning;
$got_warning = 0;
eval { $result = $dbh->rollback; };
$SIG{__WARN__} = 'DEFAULT';
ok $got_warning, "Should be warning defined upon rollback of non-trx table";
ok $dbh->do("DROP TABLE $table");
ok $dbh->disconnect();
}