text: #!/usr/bin/env python
  
  # Test whether a connection is denied if it provides just a username when it
  # needs a username and password.
  
  import inspect, os, sys
  # From http://stackoverflow.com/questions/279237/python-import-a-module-from-a-folder
  cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() ))[0],"..")))
  if cmd_subfolder not in sys.path:
      sys.path.insert(0, cmd_subfolder)
  
  import mosq_test
  
  def write_config(filename, port):
      with open(filename, 'w') as f:
          f.write("port %d\n" % (port))
          f.write("password_file %s\n" % (filename.replace('.conf', '.pwfile')))
          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
  keepalive = 10
  connect_packet = mosq_test.gen_connect("connect-uname-test", keepalive=keepalive, username="user")
  connack_packet = mosq_test.gen_connack(rc=5)
  
  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, port=port)
      sock.close()
      rc = 0
  finally:
      os.remove(conf_file)
      broker.terminate()
      broker.wait()
      (stdo, stde) = broker.communicate()
      if rc:
          print(stde)
  
  exit(rc)
  
  