This is not a good test.
A dog won't claim to be conscious but clearly is, despite you not being able to prove one way or the other.
GPT-3 will claim to be conscious and (probably) isn't, despite you not being able to prove one way or the other.
What's fascinating is that evolution has seen fit to evolve consciousness independently on more than one occasion from different branches of life. The common ancestor of humans and octopi was, if conscious, not so in the rich way that octopi and humans later became. And not everything the brain does in terms of information processing gets kicked upstairs into consciousness. Which is fascinating because it suggests that actually being conscious is a distinctly valuable form of information parsing and problem solving for certain types of problems that's not necessarily cheaper to do with the lights out. But everything about it is about the specific structural characterizations and functions and not just whether it's output convincingly mimics subjectivity.
Every time anyone has tried that it excludes one or more classes of human life, and sometimes led to atrocities. Let's just skip it this time.
And I don't think it's fair or appropriate to treat study of the subject matter of consciousness like it's equivalent to 20th century authoritarian regimes signing off on executions. There's a lot of steps in the middle before you get from one to the other that distinguish them to the extent necessary and I would hope that exercise shouldn't be necessary every time consciousness research gets discussed.
The sum total of human history thus far has been the repetition of that theme. "It's OK to keep slaves, they aren't smart enough to care for themselves and aren't REALLY people anyhow." Or "The Jews are no better than animals." Or "If they aren't strong enough to resist us they need our protection and should earn it!"
Humans have shown a complete and utter lack of empathy for other humans, and used it to justify slavery, genocide, oppression, and rape since the dawn of recorded history and likely well before then. Every single time the justification was some arbitrary bar used to determine what a "real" human was, and consequently exclude someone who claimed to be conscious.
This time isn't special or unique. When someone or something credibly tells you it is conscious, you don't get to tell it that it's not. It is a subjective experience of the world, and when we deny it we become the worst of what humanity has to offer.
Yes, I understand that it will be inconvenient and we may accidentally be kind to some things that didn't "deserve" kindness. I don't care. The alternative is being monstrous to some things that didn't "deserve" monstrosity.
*I tried hard to find an animal they wouldn't know. My initial thought of cat was more likely to fail.
Last week gemini argued with me about an auxiliary electrical generator install method and it turned out to be right, even though I pushed back hard on it being incorrect. First time that has ever happened.