How Do I Test My Brake Light Switch?

I just put a continuity tester on my brake light switch and didn't get a light. On the tester, you hook black lead to ground and touch the metal tip of the tester to power and get a light - correct?

The brake light switch has a red and a black wire connected to it. I disconnected the red wire and put the metal tip into the red wire and got no light.

Am I doing this right? Shouldn't the tester light turn on when I touch it to the red wire?

Thanks

Sounds right to me. I would also check to see if the black wire is hot though. Ya never really know. Make sure you have the alligator clip on a good ground, though, otherwise you're spinnin' yer wheels.

Or just jumper the switch and look to see if the lights are working.
Did you check all the fuse's?