def METHOD_NAME(self):
    """Test that we ignore invalid commands"""
    msg = message.Message()
    msg.header.command_code = 0xfa4e
    msg.header.request = True
    # Encode request message into buffer
    req_buf = bytearray(msg.length)
    msg.encode(req_buf, 0)
    self._check_reply(req_buf, b'')