Salam Ailakom,
I have a test July 27th that I have to drive 2 hours to get to. Also my test is 8 hours long. My question is, is it ok if I don't fast that day and make up for it later?
Thank you.

It is conditioned for breaking the fast during traveling that you must leave before the time of dawn. Otherwise, you must observe fast, but if it poses difficulty upon you, you can refrain from fasting.
May Allah grant you success.