mosquitto/test/broker/03-publish-qos1-max-inflight-expire.py

71 lines
3.6 KiB
Python
Executable file

#!/usr/bin/env python3
# Test whether a PUBLISH to a topic with QoS 1 results in the correct packet flow for a subscriber.
# With max_inflight_messages set to 1
from mosq_test_helper import *
from broker_config import BrokerConfig
def do_test(proto_ver):
properties = mqtt5_props.gen_uint32_prop(mqtt5_props.SESSION_EXPIRY_INTERVAL, 1000)
sub_connect_packet = mqtt_packets.gen_connect("sub", properties=properties, proto_ver=proto_ver, clean_session=False)
properties = mqtt5_props.gen_uint16_prop(mqtt5_props.TOPIC_ALIAS_MAXIMUM, 10) \
+ mqtt5_props.gen_uint32_prop(mqtt5_props.MAXIMUM_PACKET_SIZE, 2000000) \
+ mqtt5_props.gen_uint16_prop(mqtt5_props.RECEIVE_MAXIMUM, 1)
sub_connack_packet = mqtt_packets.gen_connack(rc=0, proto_ver=proto_ver, properties=properties, property_helper=False)
sub_connack_packet2 = mqtt_packets.gen_connack(rc=0, flags=1, proto_ver=proto_ver, properties=properties, property_helper=False)
mid = 1
subscribe_packet = mqtt_packets.gen_subscribe(mid, "pub/qos1/test", 1, proto_ver=proto_ver)
suback_packet = mqtt_packets.gen_suback(mid, 1, proto_ver=proto_ver)
connect_packet = mqtt_packets.gen_connect("pub-qos1-test", proto_ver=proto_ver)
properties = mqtt5_props.gen_uint16_prop(mqtt5_props.TOPIC_ALIAS_MAXIMUM, 10) \
+ mqtt5_props.gen_uint32_prop(mqtt5_props.MAXIMUM_PACKET_SIZE, 2000000) \
+ mqtt5_props.gen_uint16_prop(mqtt5_props.RECEIVE_MAXIMUM, 1)
connack_packet = mqtt_packets.gen_connack(rc=0, proto_ver=proto_ver, properties=properties, property_helper=False)
mid = 311
properties = mqtt5_props.gen_uint32_prop(mqtt5_props.MESSAGE_EXPIRY_INTERVAL, 1)
publish_packet = mqtt_packets.gen_publish("pub/qos1/test", qos=1, mid=mid, payload="message", proto_ver=proto_ver, properties=properties)
puback_packet = mqtt_packets.gen_puback(mid, proto_ver=proto_ver)
mid = 1
r_publish_packet = mqtt_packets.gen_publish("pub/qos1/test", qos=1, mid=mid, payload="message", proto_ver=proto_ver)
r_puback_packet = mqtt_packets.gen_puback(mid, proto_ver=proto_ver)
port = mosq_test.get_port()
broker_config = BrokerConfig(max_inflight_messages=1)
broker = MosquittoBroker(port=port, config=broker_config)
with broker:
sub_sock = mosq_test.do_client_connect(sub_connect_packet, sub_connack_packet, port=port, timeout=10)
mosq_test.do_send_receive(sub_sock, subscribe_packet, suback_packet, "suback")
sub_sock.close()
sock = mosq_test.do_client_connect(connect_packet, connack_packet, port=port, timeout=10)
mosq_test.do_send_receive(sock, publish_packet, puback_packet, "puback")
time.sleep(2)
sub_sock = mosq_test.do_client_connect(sub_connect_packet, sub_connack_packet2, port=port, timeout=10)
# This message has expired, so we don't expect it
#mosq_test.expect_packet(sub_sock, "publish 2", r_publish_packet)
#sub_sock.send(r_puback_packet)
#
mid = 1
s_publish_packet = mqtt_packets.gen_publish("pub/qos1/test", qos=1, mid=mid, payload="message2", proto_ver=proto_ver)
s_puback_packet = mqtt_packets.gen_puback(mid, proto_ver=proto_ver)
mosq_test.do_send_receive(sock, s_publish_packet, s_puback_packet, "puback")
mid = 2
r_publish_packet = mqtt_packets.gen_publish("pub/qos1/test", qos=1, mid=mid, payload="message2", proto_ver=proto_ver)
r_puback_packet = mqtt_packets.gen_puback(mid, proto_ver=proto_ver)
mosq_test.expect_packet(sub_sock, "publish 3", r_publish_packet)
sub_sock.send(r_puback_packet)
do_test(proto_ver=5)