What really makes a person, a person anyways, if a 12 month old child can't pass such a self-awareness test? Or perhaps a severely brain damaged adult human?
Both philosophy and the science that was born from it have been trying to answer that question since the BCs. We don't have an answer yet (Well, we have shittonnes of answers but nothing definitive. Same thing, really.). Behavioral tests are the best we can do, and will have to suffice, really, at least until we figure out some facsimile of telepathy.
The personhood of children or the brain damaged has actually been a long running battle, though. It's a question a lot of people really don't like being asked, huhuhu.
Well, say a computer is programmed as such to pass self-awareness tests at least as well as a dolphin, does that computer become a 'non human person'? Can you really point to a dolphin human and claim it understands the metaphysical concepts related to 'self' and deserves personhood because it can recognize its self in a mirror?
FTFY
Considering a significant amount of humans don't even know what the blazes metaphysics
are or actually have much of a self-reflective understanding of the self, well...
In any case, hell, sure, if a computer can pass the same self-awareness tests a dolphin can pass, it's as self aware as a dolphin. Self-awareness isn't the only qualifying point for person, though, non-human or otherwise.