mosquitto/test/broker/01-connect-max-connections.py

80 lines
2.4 KiB
Python
Executable File

#!/usr/bin/env python3
# Test whether max_connections works with repeated connections
from mosq_test_helper import *
def write_config(filename, port):
with open(filename, 'w') as f:
f.write("listener %d\n" % (port))
f.write("allow_anonymous true\n")
f.write("max_connections 10\n")
def do_test():
rc = 1
connect_packets_ok = []
connack_packets_ok = []
for i in range(0, 10):
connect_packets_ok.append(mosq_test.gen_connect("max-conn-%d"%i, proto_ver=5))
connack_packets_ok.append(mosq_test.gen_connack(rc=0, proto_ver=5))
connect_packet_bad = mosq_test.gen_connect("max-conn-bad", proto_ver=5)
connack_packet_bad = b""
port = mosq_test.get_port()
conf_file = os.path.basename(__file__).replace('.py', '.conf')
write_config(conf_file, port)
broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port)
socks = []
try:
# Open all allowed connections, a limit of 10
for i in range(0, 10):
socks.append(mosq_test.do_client_connect(connect_packets_ok[i], connack_packets_ok[i], port=port))
# Try to open an 11th connection
try:
sock_bad = mosq_test.do_client_connect(connect_packet_bad, connack_packet_bad, port=port)
except ConnectionResetError:
# Expected behaviour
pass
# Close all allowed connections
for i in range(0, 10):
socks[i].close()
## Now repeat - check it works as before
# Open all allowed connections, a limit of 10
for i in range(0, 10):
socks.append(mosq_test.do_client_connect(connect_packets_ok[i], connack_packets_ok[i], port=port))
# Try to open an 11th connection
try:
sock_bad = mosq_test.do_client_connect(connect_packet_bad, connack_packet_bad, port=port)
except ConnectionResetError:
# Expected behaviour
pass
# Close all allowed connections
for i in range(0, 10):
socks[i].close()
rc = 0
except mosq_test.TestError:
pass
except Exception as err:
print(err)
finally:
os.remove(conf_file)
broker.terminate()
broker.wait()
(stdo, stde) = broker.communicate()
if rc:
print(stde.decode('utf-8'))
exit(rc)
do_test()
exit(0)