The need for a way to test it first is because the breaker box is downstairs into the basement and then to the opposite corner of the house. I worry that if the switches weren't wired right, I might see pretty sparks when I run zoom upstairs and around a corner to check on my repair job. And then have run zoom back downstairs and across to make sure the power is back off. Just the thought makes me nervous.
Any hints or ideas will be gratefully appreciated. Thank you,