Had to use a new garage but the tester has tested my cars elsewhere before, but not the Griff. Think she enjoyed using the Tapley brake tested rather than the ramp rollers.
The honest answer is I am not sure. It's on axle stands at the mo, safe to say that standard metal DIY garage ramps are no good trolley jack has to go between wheel and the wheel arch for jacking. The brake test rolling roads tend to be a drop-down as well.