I was using a circular saw and thought that I blew the circuit breaker.
The breaker I have on the line is a GFI and I noticed that "test" button on the breaker was no longer working and I couldn't get light to go on even after resetting the breaker.
I purchased new breaker and replaced the old one. Now the "test" is working and I detect current at the circuit breaker between a black wire and the ground (the breaker box itself). At the wire that feeds the light (and the receptacle I connected the saw to) I still detect current between black wire and ground but not between the black and white wires. And light is not turning on.
Additionally when I use a non-contact current tester it beeps both at the white and the black wire, so I'm not sure what's going on. The whole line is out because I have a few lights along it and none are working.
Any ideas? Or is it time to call professionals? I'm pretty good with wiring but have little experience with circuit breakers and switch boxes.