For questions about the Turing Test, a test designed to see whether a third-party person can identify, from a written transcript, who was the AI and who was the human is an human/AI conversation.
The Turing test was designed in 1950 by Alan Turing, to evaluate a machine's ability to exhibit natural-language. He introduced the test in his essay Computing Machinery and Intelligence, which can be read online here.
The test has a human and an AI have a conversation, which is limited to on-screen text, and then a judge will look over the transcript, and try to see if they can tell who was who in the conversation.
