02-subpub-qos2-receive-maximum-2.py

#!/usr/bin/env python

# Does the broker respect receive maximum==2?
# MQTT v5

from mosq_test_helper import *

rc = 1
keepalive = 60
props = mqtt5_props.gen_uint16_prop(mqtt5_props.PROP_RECEIVE_MAXIMUM, 2)
props = mqtt5_props.prop_finalise(props)
connect_packet = mosq_test.gen_connect("subpub-qos2-test", keepalive=keepalive, proto_ver=5, properties=props)
connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)

mid = 1
subscribe_packet = mosq_test.gen_subscribe(mid, "subpub/qos2", 2, proto_ver=5)
suback_packet = mosq_test.gen_suback(mid, 2, proto_ver=5)

mid = 1
publish_packet1 = mosq_test.gen_publish("subpub/qos2", qos=2, mid=mid, payload="message1", proto_ver=5)
pubrec_packet1 = mosq_test.gen_pubrec(mid, proto_ver=5)
pubrel_packet1 = mosq_test.gen_pubrel(mid, proto_ver=5)
pubcomp_packet1 = mosq_test.gen_pubcomp(mid, proto_ver=5)

mid = 2
publish_packet2 = mosq_test.gen_publish("subpub/qos2", qos=2, mid=mid, payload="message2", proto_ver=5)
pubrec_packet2 = mosq_test.gen_pubrec(mid, proto_ver=5)
pubrel_packet2 = mosq_test.gen_pubrel(mid, proto_ver=5)
pubcomp_packet2 = mosq_test.gen_pubcomp(mid, proto_ver=5)

mid = 3
publish_packet3 = mosq_test.gen_publish("subpub/qos2", qos=2, mid=mid, payload="message3", proto_ver=5)
pubrec_packet3 = mosq_test.gen_pubrec(mid, proto_ver=5)
pubrel_packet3 = mosq_test.gen_pubrel(mid, proto_ver=5)
pubcomp_packet3 = mosq_test.gen_pubcomp(mid, 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")

    pub = subprocess.Popen(['./02-subpub-qos2-receive-maximum-helper.py', str(port)], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    pub.wait()
    (stdo, stde) = pub.communicate()

    if mosq_test.expect_packet(sock, "publish1", publish_packet1):
        if mosq_test.expect_packet(sock, "publish2", publish_packet2):
            mosq_test.do_send_receive(sock, pubrec_packet1, pubrel_packet1, "pubrel1")
            sock.send(pubcomp_packet1)

            if mosq_test.expect_packet(sock, "publish3", publish_packet3):
                mosq_test.do_send_receive(sock, pubrec_packet2, pubrel_packet2, "pubrel2")
                sock.send(pubcomp_packet2)

                mosq_test.do_send_receive(sock, pubrec_packet3, pubrel_packet3, "pubrel3")
                sock.send(pubcomp_packet3)

                rc = 0

    sock.close()
finally:
    broker.terminate()
    broker.wait()
    (stdo, stde) = broker.communicate()
    if rc:
        print(stde)

exit(rc)