San Jose people whos out there?

Bummed - finally went to pick up my '71 Demon and could not get it to start. No fuel to the carb. Pulled the Fuel line fromt he fuel pump and it appears we may have a bad pump. I'm rusty very rusty, the last time I wrenched was on a '76 crusader (boat) about 6 yrs ago and prior to that a '72 Lnd crsr.

How do I confirm the fuel pump is toast before I start swapping parts?

(I know must be a dumb quest - go gentle)