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https://github.com/eclipse-mosquitto/mosquitto.git
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97 lines
3.7 KiB
Python
Executable file
97 lines
3.7 KiB
Python
Executable file
#!/usr/bin/env python3
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# Test whether "topic alias" works from the broker
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# MQTT v5
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from mosq_test_helper import *
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def do_test(start_broker):
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rc = 1
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props = mqtt5_props.gen_uint16_prop(mqtt5_props.TOPIC_ALIAS_MAXIMUM, 65535)
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connect_packet = mosq_test.gen_connect("02-b2c-topic-alias", proto_ver=5, properties=props)
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connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)
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subscribe_packet = mosq_test.gen_subscribe(topic="02/b2c/topic/alias/#", qos=0, mid=1, proto_ver=5)
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suback_packet = mosq_test.gen_suback(qos=0, mid=1, proto_ver=5)
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connect_packet_helper = mosq_test.gen_connect("02-b2c-topic-alias-helper", proto_ver=5)
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connack_packet_helper = mosq_test.gen_connack(rc=0, proto_ver=5)
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port = mosq_test.get_port()
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if start_broker:
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broker = mosq_test.start_broker(filename=os.path.basename(__file__), port=port, nolog=True)
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try:
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, timeout=5, port=port)
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helper = mosq_test.do_client_connect(connect_packet_helper, connack_packet_helper, timeout=5, port=port)
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mosq_test.do_send_receive(sock, subscribe_packet, suback_packet)
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# This test allows us to test up to the 65535 aliases, but the default
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# max_topic_alias_broker setting is 10, so use that.
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max_alias = 10
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# Send messages so the broker configures topic aliases
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publish_packet_s = b""
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publish_packet_r = b""
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for i in range(1, max_alias):
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# This doesn't make sense in the max_alias=10 case, but for higher values it speeds up the test
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if i % 50 == 0:
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sock.send(publish_packet_s)
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mosq_test.expect_packet(sock, "publish %da"%(i), publish_packet_r)
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publish_packet_s = b""
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publish_packet_r = b""
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publish_packet_s += mosq_test.gen_publish("02/b2c/topic/alias/%d"%(i), qos=0, payload="message", proto_ver=5)
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props = mqtt5_props.gen_uint16_prop(mqtt5_props.TOPIC_ALIAS, i)
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publish_packet_r += mosq_test.gen_publish("02/b2c/topic/alias/%d"%(i), qos=0, payload="message", proto_ver=5, properties=props)
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if len(publish_packet_s) > 0:
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sock.send(publish_packet_s)
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mosq_test.expect_packet(sock, "publish %da"%(i), publish_packet_r)
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# Re-send now aliases have been configured by the broker
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publish_packet_s = b""
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publish_packet_r = b""
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for i in range(1, max_alias):
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if i % 50 == 0:
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sock.send(publish_packet_s)
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mosq_test.expect_packet(sock, "publish %db"%(i), publish_packet_r)
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publish_packet_s = b""
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publish_packet_r = b""
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publish_packet_s += mosq_test.gen_publish("02/b2c/topic/alias/%d"%(i), qos=0, payload="message", proto_ver=5)
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props = mqtt5_props.gen_uint16_prop(mqtt5_props.TOPIC_ALIAS, i)
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publish_packet_r += mosq_test.gen_publish("", qos=0, payload="message", proto_ver=5, properties=props)
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if len(publish_packet_s) > 0:
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sock.send(publish_packet_s)
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mosq_test.expect_packet(sock, "publish %db"%(i), publish_packet_r)
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rc = 0
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sock.close()
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except mosq_test.TestError:
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pass
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finally:
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if start_broker:
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mosq_test.terminate_broker(broker)
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if mosq_test.wait_for_subprocess(broker):
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print("broker not terminated")
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if rc == 0: rc=1
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if rc:
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print(mosq_test.broker_log(broker))
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if rc:
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exit(rc)
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def all_tests(start_broker=False):
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do_test(start_broker)
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if __name__ == '__main__':
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all_tests(True)
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