#!/usr/bin/env python3
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# Test whether sending a non zero session expiry interval in DISCONNECT after
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# having sent a zero session expiry interval is treated correctly in MQTT v5.
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from mosq_test_helper import *
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rc = 1
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keepalive = 10
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props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_SESSION_EXPIRY_INTERVAL, 0)
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connect_packet = mosq_test.gen_connect("test", proto_ver=5, keepalive=keepalive, properties=props)
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connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5)
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props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_SESSION_EXPIRY_INTERVAL, 1)
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disconnect_client_packet = mosq_test.gen_disconnect(proto_ver=5, properties=props)
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disconnect_server_packet = mosq_test.gen_disconnect(proto_ver=5, reason_code=130)
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port = mosq_test.get_port()
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broker = mosq_test.start_broker(filename=os.path.basename(__file__), port=port)
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try:
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, port=port)
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mosq_test.do_send_receive(sock, disconnect_client_packet, disconnect_server_packet, "disconnect")
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sock.close()
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rc = 0
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finally:
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broker.terminate()
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broker.wait()
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(stdo, stde) = broker.communicate()
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if rc:
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print(stde.decode('utf-8'))
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exit(rc)
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