Question: My probationary period passed three days ago, I have not been told if I passed it, and I have my evaluation early next week. Should I assume that I have passed probation?

Answer: 
Check your contract. As a fellow Canadian, usually when I've seen probation contracts, the probation period is set by a specified number of days, not by an evaluation procedure. If that's what your contract looks like, then congratulations, you passed!

I have never had a formal meeting in any job to discuss passing probation; I have only had such a meeting when I failed it. If you are confused, you should ask your manager, but your manager will probably think you're being silly (not in a bad way, just in a "isn't it obvious?" way).
> 
> I have not been told if i passed it and have my evaluation early next
>  week should I assume that i have passed probation?
> 
> 
> 

No.

Your evaluation will tell you whether you have passed probation or not. Be patient.