I hate wiring

I took a Denso Mopar mini starter to Orielys this week to get checked, the guy played around with it in his machine, it wouldnt do any thing. I watched him. He said it was no good.
Wanted to sell me a reman for around $85.00, I said no.
On the way home I went to Advance Auto. They couldnt get it to work either. So I took it home.
Got a battery, 3 test wires, Secured the starter in my bench vice, and proceded to test, and that drive gear just jumed right out, and started to spin. So I guess they just didnt wire it correctly, and I have a good Denso/Mopar starter, I bought for $40.00 at a swap meet a week ago.
Dave