mosquitto/test/broker/07-will-delay-session-expiry2.py

#!/usr/bin/env python3

# Test whether a client that connects with a will delay that is shorter than
# their session expiry interval has their will published.
# MQTT 5
# https://github.com/eclipse/mosquitto/issues/1401

from mosq_test_helper import *

rc = 1
keepalive = 60

mid = 1
connect1_packet = mosq_test.gen_connect("will-test", keepalive=keepalive, proto_ver=5)
connack1_packet = mosq_test.gen_connack(rc=0, proto_ver=5)

will_props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_WILL_DELAY_INTERVAL, 2)
connect_props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_SESSION_EXPIRY_INTERVAL, 4)

connect2_packet = mosq_test.gen_connect("will-helper", keepalive=keepalive, proto_ver=5, properties=connect_props, will_topic="will/test", will_payload=b"will delay", will_qos=2, will_properties=will_props)
connack2_packet = mosq_test.gen_connack(rc=0, proto_ver=5)

subscribe_packet = mosq_test.gen_subscribe(mid, "will/test", 0, proto_ver=5)
suback_packet = mosq_test.gen_suback(mid, 0, proto_ver=5)

publish_packet = mosq_test.gen_publish("will/test", qos=0, payload="will delay", proto_ver=5)

port = mosq_test.get_port()
broker = mosq_test.start_broker(filename=os.path.basename(__file__), port=port)

try:
    sock1 = mosq_test.do_client_connect(connect1_packet, connack1_packet, timeout=30, port=port, connack_error="connack1")
    mosq_test.do_send_receive(sock1, subscribe_packet, suback_packet, "suback")

    sock2 = mosq_test.do_client_connect(connect2_packet, connack2_packet, timeout=30, port=port, connack_error="connack2")
    time.sleep(1)
    sock2.close()

    # Wait for session to expire
    time.sleep(3)
    mosq_test.expect_packet(sock1, "publish", publish_packet)
    rc = 0

    sock1.close()
except mosq_test.TestError:
    pass
finally:
    broker.terminate()
    broker.wait()
    (stdo, stde) = broker.communicate()
    if rc:
        print(stde.decode('utf-8'))
        exit(rc)