#!/usr/bin/env python3
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# Test whether a client sends a correct PUBLISH to a topic with QoS 1 and responds to a delay.
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# The client should connect to port 1888 with keepalive=60, clean session set,
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# and client id publish-qos2-test
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# The test will send a CONNACK message to the client with rc=0. Upon receiving
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# the CONNACK the client should verify that rc==0. If not, it should exit with
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# return code=1.
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# On a successful CONNACK, the client should send a PUBLISH message with topic
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# "pub/qos2/test", payload "message" and QoS=2.
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# The test will not respond to the first PUBLISH message, so the client must
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# resend the PUBLISH message with dup=1. Note that to keep test durations low, a
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# message retry timeout of less than 10 seconds is required for this test.
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# On receiving the second PUBLISH message, the test will send the correct
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# PUBREC response. On receiving the correct PUBREC response, the client should
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# send a PUBREL message.
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# The test will not respond to the first PUBREL message, so the client must
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# resend the PUBREL message with dup=1. On receiving the second PUBREL message,
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# the test will send the correct PUBCOMP response. On receiving the correct
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# PUBCOMP response, the client should send a DISCONNECT message.
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from mosq_test_helper import *
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port = mosq_test.get_lib_port()
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rc = 1
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keepalive = 60
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connect_packet = mosq_test.gen_connect("publish-qos2-test", keepalive=keepalive)
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connack_packet = mosq_test.gen_connack(rc=0)
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disconnect_packet = mosq_test.gen_disconnect()
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mid = 1
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publish_packet = mosq_test.gen_publish("pub/qos2/test", qos=2, mid=mid, payload="message")
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publish_dup_packet = mosq_test.gen_publish("pub/qos2/test", qos=2, mid=mid, payload="message", dup=True)
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pubrec_packet = mosq_test.gen_pubrec(mid)
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pubrel_packet = mosq_test.gen_pubrel(mid)
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pubcomp_packet = mosq_test.gen_pubcomp(mid)
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.settimeout(10)
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sock.bind(('', port))
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sock.listen(5)
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client_args = sys.argv[1:]
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env = dict(os.environ)
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env['LD_LIBRARY_PATH'] = '../../lib:../../lib/cpp'
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try:
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pp = env['PYTHONPATH']
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except KeyError:
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pp = ''
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env['PYTHONPATH'] = '../../lib/python:'+pp
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client = mosq_test.start_client(filename=sys.argv[1].replace('/', '-'), cmd=client_args, env=env, port=port)
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try:
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(conn, address) = sock.accept()
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conn.settimeout(10)
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if mosq_test.expect_packet(conn, "connect", connect_packet):
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conn.send(connack_packet)
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if mosq_test.expect_packet(conn, "publish", publish_packet):
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# Delay for > 3 seconds (message retry time)
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if mosq_test.expect_packet(conn, "dup publish", publish_dup_packet):
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conn.send(pubrec_packet)
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if mosq_test.expect_packet(conn, "pubrel", pubrel_packet):
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if mosq_test.expect_packet(conn, "dup pubrel", pubrel_packet):
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conn.send(pubcomp_packet)
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if mosq_test.expect_packet(conn, "disconnect", disconnect_packet):
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rc = 0
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conn.close()
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finally:
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client.terminate()
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client.wait()
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sock.close()
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exit(rc)
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