def extraSetUp(self):
        """
        Set up the database and create a connection pool pointing at it.
        """
        self.startDB()
        self.dbpool = self.makePool(cp_openfun=self.openfun)
        self.dbpool.start()

        Set up the database and create a connection pool pointing at it.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_adbapi.py