Hello r/gamedev, I made this free little tool to test out controller inputs, since there's hardly a way to test them out without running a game or some other unrelated software :
Gamepad tester || Check every button on your Controller works perfectly or not || Joysticks Tester - YouTube
PS2 - PS2 controller tester by jbit | PSX-Place
Game Controller Test, su Android la mappatura pulsanti dei gamepad più famosi - HDblog.it