phpbb_functional_test_case::tearDown PHP Method

    protected function tearDown()
    {
        parent::tearDown();
        if ($this->db instanceof \phpbb\db\driver\driver_interface) {
            // Close the database connections again this test
            $this->db->sql_close();
        }
    }

 public function tearDown()
 {
     $this->purge_cache();
     parent::tearDown();
 }