People can absolutely do that. I'm very close to that myself. I can "see" through walls, for example. If I'm familiar with a room I can describe to you what it would look like from the angle I'm looking at, with the wall deleted.
> indistinguishable from a real apple
This is like saying what you perceive in your head through the wall is exactly as real, vibrant and tangible as if that wall was actually replaced by a window. Most everybody can describe, or "picture," a familiar room in their head - even from long ago like walking through the house you grew up in - but it is not the same as saying it is indistinguishable from actually being in the room and your eyeballs actually looking at it.
My point is not "I can do this", but rather, "I'm close to that, and it's foolish to think the continuum ends where I am."
All the information is there, not just a visual, so I don't think it'd be a viable test at all.