Testing an ESC

I recently had a MMM short out and of course i sent it to CC and they replaced it. Now that i have the replacement ready to go in my truggy, i would like to test it for shorts before i plug it in and secure it like i did before. So my question is can i verify that it wont short without plugging it into the motor or radio. I may have just asked a stupid question and fully expect someone to point that out.