Apple now distributes app that tests various aspects of iPhone accessories. App is intended to help accessory developers to ensure that those accessories work properly with the iPhone and iPad.
App Store: Accessory Developer Assistant (unlisted)
Developer:Consider using the app, if you’re developing iPhone accessories requiring MFi program.
QA engineer:Consider using the app, if you’re testing iPhone accessories requiring MFi program.
PM/DM:Business as usual.