It gets a few miles (single digits) testing inside the factory and a lap on the test track outside the factory.It gets a few miles being moved around the parking lot prior to transport, being put in a lot off site, being put in a lot at a delivery center (service center, store, etc).I wouldn't say 30 miles of testing but I would say it can rack up 5-15 miles just in the normal course of manufacturing + delivery.As you can see at Odometer Reading at Delivery | Tesla they used to put 95 miles on the delivery paperwork, then went to 50 miles.I think the lowest someone has had for non California delivery was 7 miles on the odometer.