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mosquitto/test/broker/12-prop-maximum-packet-size...

43 lines
1.1 KiB
Python

#!/usr/bin/env python3
# Test whether setting maximum packet size to smaller than a CONNACK packet
# results in the CONNECT being rejected.
# MQTTv5
from mosq_test_helper import *
def do_test(start_broker):
rc = 1
keepalive = 5
props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_MAXIMUM_PACKET_SIZE, 2)
connect_packet = mosq_test.gen_connect("12-max-packet-connect", proto_ver=5, keepalive=keepalive, properties=props)
port = mosq_test.get_port()
if start_broker:
broker = mosq_test.start_broker(filename=os.path.basename(__file__), port=port)
try:
sock = mosq_test.do_client_connect(connect_packet, b"", port=port)
# Exception occurs if connack packet returned
rc = 0
except mosq_test.TestError:
pass
finally:
if start_broker:
broker.terminate()
broker.wait()
(stdo, stde) = broker.communicate()
if rc:
print(stde.decode('utf-8'))
exit(rc)
else:
return rc
def all_tests(start_broker=False):
return do_test(start_broker)
if __name__ == '__main__':
all_tests(True)