It's possible but a lot depends on the time of year (aka crowds) and I think your best chance is to get through Soarin and Spaceship Earth and then be "experiencing" Test Track by 9:00...maybe not done with Test Track. Assuming your goal is to really have these 3 covered before the 9 o'clockers come in, you should be good to go.
Only problem with this approach is that you have to skip some things on that side of the park (like Living with the Land, maybe Circle of Life) or you would have to come back to this side of the park. Depending on your strategy a better approach may be to do The Land (Soarin, Living, etc) in time to do Spaceship Earth just before 9:00 and get a Fastpass+ for Test Track. On a side note, we also go straight to Soarin but also get a Fastpass+ for Soarin around 9:30 and staying on this side of the park for the early morning doing The Land, The Seas, Sunshine Seasons snack, maybe Figment so we can get 2 Soarins in. Spaceship Earth is a fairly fast loader so you can get on later even with crowds and same for Ellen. Of course you need a Fastpass+ for Test Track later.EPCOT is not a good park to criss cross to try and beat crowds. It's huge.
