public function setUp()
{
$yaml = new \Symfony\Component\Yaml\Parser();
$config = $yaml->parse(file_get_contents(__DIR__ . '/../../config/mysql.yml'));
$this->functions = array_merge($config['doctrine']['orm']['dql']['datetime_functions'], $config['doctrine']['orm']['dql']['numeric_functions'], $config['doctrine']['orm']['dql']['string_functions']);
}