Test of Wifi Keyboard and mouse

Is there any software to test the wifi keyboard and mouse (ie. automatically stimulate the mouse / keyword click over a long period)

Currently, I use a USB to connect my computer and the monitor. The wifi receiver is plugged in my monitor which is close to my keyboard and mosue. It always fine over a year. Recently, there is no response for my wifi keyboard and mouse occaionally. I unplug and plug in the USB cable and it seems work again.
Any advise for testing ??