Wiper motor testing

I'm in the process of restoring all the small parts to put back together after the engine bay is painted. Is there any way to test the wiper motor function with it removed from the car? Like maybe run a lead from a battery or something like that? I'd like to test it to make sure it works right before I take the time to clean and paint it.
Used this a bunch lately. Assuming your 75 has three speed. From FBBO:
How to test a 3 speed wiper motor