I would ask a school counselor to see if there is anything you can do. If you were skipping class every other day I can understand his being like this, but it was your first and only time (hopefully) this happened and it seems unfair. Being it was Remembrance Day he could have chosen a different day for the test, but that's his class. Seems a little rigid to me. Good luck.
The only true wisdom is in knowing you know nothing.