#!/usr/bin/env python3
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# Test whether a client sends a correct PUBLISH to a topic with QoS 0 and no payload.
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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-qos0-test-np
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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 and verifying that rc=0, the client should send a PUBLISH message
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# to topic "pub/qos0/no-payload/test" with zero length payload and QoS=0. If
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# rc!=0, the client should exit with an error.
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# After sending the PUBLISH message, 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-qos0-test-np", keepalive=keepalive)
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connack_packet = mosq_test.gen_connack(rc=0)
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publish_packet = mosq_test.gen_publish("pub/qos0/no-payload/test", qos=0)
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disconnect_packet = mosq_test.gen_disconnect()
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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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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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