APUE Learning Example Source Code
guowenxue
2019-06-26 157be0b0d4c7d4809cfcafc76235cc18388378c8
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#!/usr/bin/env python3
 
# Test whether a client subscribed to a topic receives its own message sent to that topic.
# MQTT v5
 
from mosq_test_helper import *
 
rc = 1
mid = 53
keepalive = 60
connect_packet = mosq_test.gen_connect("subpub-qos0-test", keepalive=keepalive, proto_ver=5)
connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)
 
subscribe_packet = mosq_test.gen_subscribe(mid, "subpub/qos0", 0, proto_ver=5)
suback_packet = mosq_test.gen_suback(mid, 0, proto_ver=5)
 
publish_packet = mosq_test.gen_publish("subpub/qos0", qos=0, payload="message", proto_ver=5)
 
port = mosq_test.get_port()
broker = mosq_test.start_broker(filename=os.path.basename(__file__), port=port)
 
try:
    sock = mosq_test.do_client_connect(connect_packet, connack_packet, timeout=20, port=port)
 
    mosq_test.do_send_receive(sock, subscribe_packet, suback_packet, "suback")
    mosq_test.do_send_receive(sock, publish_packet, publish_packet, "publish")
 
    rc = 0
 
    sock.close()
finally:
    broker.terminate()
    broker.wait()
    (stdo, stde) = broker.communicate()
    if rc:
        print(stde.decode('utf-8'))
 
exit(rc)