def METHOD_NAME(self):
    cls = self.__class__
    t1 = TcOpsPyRoute2()
    t2 = TcOpsCmd()
    iface = cls.IFACE
    qid = "0xae"
    max_bw = 10000
    rate = 1000
    unit = 'bit'
    parent_qid = '1:fffe'
    err1 = t2.create_htb(iface, qid, max_bw, rate, unit, parent_qid)
    self.assertEqual(err1, 0)
    err1 = t2.create_filter(iface, qid, qid)
    self.assertEqual(err1, 0)
    self.assertTrue(self.check_qid_in_tc(qid))
    err = t1.del_filter(iface, qid, qid)
    self.assertEqual(err, 0)
    err = t1.del_htb(iface, qid)
    self.assertEqual(err, 0)
    self.assertFalse(self.check_qid_in_tc(qid))
    self.assertEqual(err, 0)
    self.assertEqual(err1, 0)