/**
* Test rollback.
*/
public function testRollback()
{
$this->assertEquals(3, $this->connection->executeFirstCell('SELECT COUNT(`id`) AS "row_count" FROM `writers`'));
$this->connection->beginWork();
$this->connection->execute('INSERT INTO `writers` (`name`, `birthday`) VALUES (?, ?)', 'Anton Chekhov', new DateTime('1860-01-29'));
$this->connection->rollback();
$this->assertEquals(3, $this->connection->executeFirstCell('SELECT COUNT(`id`) AS "row_count" FROM `writers`'));
}