/**
     */
    public function truncateDatabase()
    {
        $conn = $this->container->entityManager->getConnection();

        $conn->beginTransaction();
        try {
            foreach ($conn->getSchemaManager()->listTableNames() as $tableName) {
                $query = $conn->getDatabasePlatform()->getTruncateTableSql($tableName);
                $conn->executeUpdate($query);
            }
            $conn->commit();

        } catch (\Exception $e) {
            throw $e;
        }
    }