dryer was running and in mid cycle it shut down,checked for power at receptacle and power is present,any ideas or test points to troubleshoot the unit?

I just went through the whole process of checking every possible point of electrical continuity with a multi-tester. Everything passed with flying colors.

By dumb luck, as I rested my head against the front of the open dryer, knelt down trying to figure out what to check next, my finger grazed the plastic tab that extends out from the dryer switch. I noticed it felt rough on the bottom edge. Sure enough, the plastic tab, which is actually a small door striker that closes the circuit on the door switch (which electrically tested out fine, in my case), which, when actuated, allows the dryer to operate, was ever-so-slightly broken. When I closed the door slowly, there was enough contact with the remaining striker to flip the switch and, voila! We're back in drying business!

Letting the dryer door swing up and shut on its own accord blew right past the remaining striker, which left the door switch open, thus keeping the dryer from operating.

So, a fingernail's worth of duct tape was used to bolster the broken tab and all is right with the clothes-drying world again.

This scenario may also explain why some of the other threads I've read report, "sometimes it turns on, sometimes it doesn't."

Hope this helps. The actual part can be found here:

Part Details - WHIRLPOOL Dryer door switch assembly, part number: AP3132865

However, the duct-tape solution is working just fine for me!