i used to think crank sensor worked or didn't, run or not. but i've had a couple that caused weird driveablity for a short time, then no start, and not restart till it sat.
but if you poor gas in the throttle body and it runs, its getting spark. a spark tester would be better though, they are around 12 bux and its just a test light, but it has a spark plug boot on one end to fit on the plug, and the other end looks like a spark plug, the light flashes with the spark. you need to have nice constant flashing. there's special noid lights for pulse, but you can check for power pulsing with a regular test light also.