text: import socket
  
  from gevent.testing import util
  from gevent.testing import main
  
  
  class Test(util.TestServer):
      example = 'udp_server.py'
  
      def _run_all_tests(self):
          sock = socket.socket(type=socket.SOCK_DGRAM)
          try:
              sock.connect(('10.28.141.171', 9000))
              sock.send(b'Test udp_server')
              data, _address = sock.recvfrom(8192)
              self.assertEqual(data, b'Received 15 bytes')
          finally:
              sock.close()
  
  
  if __name__ == '__main__':
      main()
  