def test_call():
     ee = QueueEventEngine()
     client = EventRPCClient(ee, 'test')
     server = EventRPCServer(ee, 'test')
     server.register("server_print_hello", server_print_hello)
     ee.start()
     client.call("server_print_hello", { 'msg': 'parral_client'}, client_print_hello)
     return ee
 def test_call():
     ee = QueueEventEngine()
     client = EventRPCClient(ee, 'test')
     server = EventRPCServer(ee, 'test')
     server.register("server_print_hello", server_print_hello)
     ee.start()
     client.call("server_print_hello", {'msg': 'parral_client'},
                 client_print_hello)
     return ee