Not sure if this is possible, but couldn't they capture all the LIDAR inputs from a car being driven by a person, then feed that into the software to see if it actually recognizing objects correctly?

Or even do it on a closed track. That way you could throw all sorts of things at it like kids, bikes, garbage cans, whatever.

Should be able to see what works and what doesn't work pretty quickly.

EDIT: Never mind! That's what Waymo does in the article another person posted.

https://www.theatlantic.com/technology/archive/2017/08/insid...