We are such Disney freaks that we are even interested in looking at the testing of a ride that is still under construction!
Attractions Magazine has a video of the testing of the Dumbo ride at the new expansion of Fantasyland at the Magic Kingdom.
Notice that Dumbo now is flying in the opposite direction as the old Dumbo attraction. We were pointed to this when we were at the last year's (2010) DVC annual condo association meeting. We got to see a scaled model of the Dumbo ride vehicle, and the imagineer pointed out that the door to get on the vehicle was on the opposite side to the old one. So that's when it was revealed that Dumbo will be flying in the opposite direction!