def METHOD_NAME(self):
    self.tb.start()
    self.tb.lock()
    rem = pdu.pdu_remove(pmt.intern('foo'))
    dbg = blocks.message_debug()
    self.tb.msg_connect((rem, 'pdus'), (dbg, 'store'))
    self.tb.unlock()
    msg = pmt.cons(pmt.PMT_NIL, pmt.init_u8vector(3, (1, 2, 3)))
    rem.to_basic_block()._post(pmt.intern('pdus'), msg)
    time.sleep(0.2)
    self.tb.stop()
    self.assertEqual(dbg.num_messages(), 1)
    data = pmt.u8vector_elements(pmt.cdr(dbg.get_message(0)))
    self.assertEqual([1, 2, 3], data)