mosquitto/test/lib/02-subscribe-qos1.py

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2014-05-07 22:27:00 +00:00
#!/usr/bin/env python
# Test whether a client sends a correct SUBSCRIBE to a topic with QoS 1.
# The client should connect to port 1888 with keepalive=60, clean session set,
# and client id subscribe-qos1-test
# The test will send a CONNACK message to the client with rc=0. Upon receiving
# the CONNACK and verifying that rc=0, the client should send a SUBSCRIBE
# message to subscribe to topic "qos1/test" with QoS=1. If rc!=0, the client
# should exit with an error.
# Upon receiving the correct SUBSCRIBE message, the test will reply with a
# SUBACK message with the accepted QoS set to 1. On receiving the SUBACK
# message, the client should send a DISCONNECT message.
import inspect
import os
import subprocess
import socket
import sys
import time
# From http://stackoverflow.com/questions/279237/python-import-a-module-from-a-folder
cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() ))[0],"..")))
if cmd_subfolder not in sys.path:
sys.path.insert(0, cmd_subfolder)
import mosq_test
rc = 1
keepalive = 60
connect_packet = mosq_test.gen_connect("subscribe-qos1-test", keepalive=keepalive)
connack_packet = mosq_test.gen_connack(rc=0)
disconnect_packet = mosq_test.gen_disconnect()
mid = 1
subscribe_packet = mosq_test.gen_subscribe(mid, "qos1/test", 1)
suback_packet = mosq_test.gen_suback(mid, 1)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.settimeout(10)
sock.bind(('', 1888))
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 = subprocess.Popen(client_args, env=env)
try:
(conn, address) = sock.accept()
conn.settimeout(10)
if mosq_test.expect_packet(conn, "connect", connect_packet):
conn.send(connack_packet)
if mosq_test.expect_packet(conn, "subscribe", subscribe_packet):
conn.send(suback_packet)
if mosq_test.expect_packet(conn, "disconnect", disconnect_packet):
rc = 0
conn.close()
finally:
client.terminate()
client.wait()
sock.close()
exit(rc)