How do I check if power steering pump works?

[sixpack_sid]

I have the original power steering pump for a 68 Charger. It is off of the engine-I am putting the engine together on a stand- and when I spin the pulley, no fluid comes out of the return line. Does this mean the pump is no good?
I don't want to buy a new one if mine is ok.
Is there a way to check it without having it on a running car?
Thanks!
Sid

[six-tee-nine]

Put it in a vise or something to hold it and spin the pulley with a drill or something. Try to press a piece of rubber in between your drill head and the pulley centre and spin the pump a little faster and pour some oil in the suction line. If it works the oil should squirt out on the pressure side.