mosquitto/test/lib/03-publish-c2b-qos2.py
2020-08-12 15:18:18 +01:00

76 lines
2.7 KiB
Python
Executable File

#!/usr/bin/env python3
# Test whether a client sends a correct PUBLISH to a topic with QoS 2.
# The client should connect to port 1888 with keepalive=60, clean session set,
# and client id publish-qos2-test
# The test will send a CONNACK message to the client with rc=0. Upon receiving
# the CONNACK the client should verify that rc==0. If not, it should exit with
# return code=1.
# On a successful CONNACK, the client should send a PUBLISH message with topic
# "pub/qos2/test", payload "message" and QoS=2.
# The test will not respond to the first PUBLISH message, so the client must
# resend the PUBLISH message with dup=1. Note that to keep test durations low, a
# message retry timeout of less than 10 seconds is required for this test.
# On receiving the second PUBLISH message, the test will send the correct
# PUBREC response. On receiving the correct PUBREC response, the client should
# send a PUBREL message.
# The test will not respond to the first PUBREL message, so the client must
# resend the PUBREL message with dup=1. On receiving the second PUBREL message,
# the test will send the correct PUBCOMP response. On receiving the correct
# PUBCOMP response, the client should send a DISCONNECT message.
from mosq_test_helper import *
port = mosq_test.get_lib_port()
rc = 1
keepalive = 60
connect_packet = mosq_test.gen_connect("publish-qos2-test", keepalive=keepalive)
connack_packet = mosq_test.gen_connack(rc=0)
disconnect_packet = mosq_test.gen_disconnect()
mid = 1
publish_packet = mosq_test.gen_publish("pub/qos2/test", qos=2, mid=mid, payload="message")
publish_dup_packet = mosq_test.gen_publish("pub/qos2/test", qos=2, mid=mid, payload="message", dup=True)
pubrec_packet = mosq_test.gen_pubrec(mid)
pubrel_packet = mosq_test.gen_pubrel(mid)
pubcomp_packet = mosq_test.gen_pubcomp(mid)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.settimeout(10)
sock.bind(('', port))
sock.listen(5)
client_args = sys.argv[1:]
env = dict(os.environ)
env['LD_LIBRARY_PATH'] = '../../lib:../../lib/cpp'
try:
pp = env['PYTHONPATH']
except KeyError:
pp = ''
env['PYTHONPATH'] = '../../lib/python:'+pp
client = mosq_test.start_client(filename=sys.argv[1].replace('/', '-'), cmd=client_args, env=env, port=port)
try:
(conn, address) = sock.accept()
conn.settimeout(10)
mosq_test.do_receive_send(conn, connect_packet, connack_packet, "connect")
mosq_test.do_receive_send(conn, publish_packet, pubrec_packet, "publish")
mosq_test.do_receive_send(conn, pubrel_packet, pubcomp_packet, "pubrel")
mosq_test.expect_packet(conn, "disconnect", disconnect_packet)
rc = 0
conn.close()
except mosq_test.TestError:
pass
finally:
client.terminate()
client.wait()
sock.close()
exit(rc)