The test for unintended movement, and ascending car is to assure the E-Brake or Rope Gripper will decelerate, and stop the empty car in the up direction, by tripping the Governor at 110% of rated speed. It will do the same in the down direction using a 125% load. Most tests I observed the Main Brake is held open either mechanically, or electrically, and the car is allowed to ascend or move down with a load. The Gov. must trip the over speed switch and stop the car.