I was tested in the crew room post flight while sitting around waiting to deadhead a sector. I advised the CASA rep, and they said that because I was technically available to be called to operate, that I would still require testing.
And if I was sitting in the QF Club, would the same reasoning apply? It opens a can of worms, doesn't it?!
That's a bit of a silly point of view from CASA (yet unsurprising all the same), given that you've finished all your operating duties and are not scheduled for any more. By their logic, the fact that we can be phoned at any time of the day while at home and asked to crew a flight if we answer the phone, means we can't have a beer or glass of wine....ever!
