I had a fluorescent lighting fixture in my kitchen that would only
turn on, usually, with many attempt at the lighting switch. I decided
finally to replace the fixture, but it won't turn on at all. I have
found the "hot" wire in the ceiling box by using a continuity tester
with one probe connected to the hot wire and the other to a ground--
the tester glowed. The wall switch does stop and allow the current to
flow to the hot wire. Next I attached an incandescent bulb fixture
and bulb by attaching one wire of the incandescent fixture to the hot
wire in the ceiling box and the other fixture wire to the other
(neutral?) wire. The switch will not turn the incandescent bulb on.

My first question is whether there is a test to see whether the non-
hot wire in the ceiling (the putative neutral wire) is in good order?
Secondarily, if that is the wrong question, any suggestions?

Thanks in advance.