If you’re basing your belief on the results of the test, then it either isn’t based on faith any more, or there’s nothing that isn’t based on faith. Which is it?
I think everything we do starts as faith. Then we try it.
It either works or doesn’t.
If it doesn’t, we don’t have ‘faith’ in it any more (usually).
If it works; then it moves to the realm of knowledge, and we then have faith in another area.
The original statement said we weren’t ALLOWED to test it; I merely showed that we are.