Do all dogs go to heaven? R.I.P. Foxy Johnson

Well, it's been a couple of days since my dog was put to sleep Monday. My family has had her since 1995. She was a Basenji, and it was always fun explaining to people "what kind of dog" that is because no one really ever knew. Originally from Africa, Basenji's where they were used to hunt lions. They can't bark, and they also do not like the water. (drinking water is ok.) Every time I would give her a bath, she would hate it... just like a cat. Over the years she got used to it, because and I turned the water on the hot. She loved to sit in the sun and soak up the warmth. R.I.P. Foxy.