text: #!/usr/bin/env python3
  
  # Test whether message parameters are passed to the plugin acl check function.
  
  from mosq_test_helper import *
  
  def write_config(filename, port):
      with open(filename, 'w') as f:
          f.write("port %d\n" % (port))
          f.write("auth_plugin c/auth_plugin_context_params.so\n")
          f.write("allow_anonymous false\n")
  
  port = mosq_test.get_port()
  conf_file = os.path.basename(__file__).replace('.py', '.conf')
  write_config(conf_file, port)
  
  rc = 1
  connect_packet = mosq_test.gen_connect("client-params-test", keepalive=42, username="client-username")
  connack_packet = mosq_test.gen_connack(rc=0)
  
  mid = 2
  subscribe_packet = mosq_test.gen_subscribe(mid, "param/topic", 1)
  suback_packet = mosq_test.gen_suback(mid, 1)
  
  mid = 3
  publish_packet = mosq_test.gen_publish(topic="param/topic", qos=1, payload="payload contents", retain=1, mid=mid)
  puback_packet = mosq_test.gen_puback(mid)
  
  mid = 1
  publish_packet_recv = mosq_test.gen_publish(topic="param/topic", qos=1, payload="payload contents", retain=0, mid=mid)
  
  
  broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port)
  
  try:
      sock = mosq_test.do_client_connect(connect_packet, connack_packet, timeout=20, port=port)
      rc = 0
  
      sock.close()
  except mosq_test.TestError:
      pass
  finally:
      os.remove(conf_file)
      broker.terminate()
      broker.wait()
      (stdo, stde) = broker.communicate()
      if rc:
          print(stde.decode('utf-8'))
  
  
  exit(rc)
  
  