If you want to get philosophical the truth it we don’t know what intelligence is and there’s no way to identify it in a black box. We may say that something behaves intelligently or not but we will never be able say if it’s really intelligent. Turing test check if a program is able to chat intelligently. We can come up with a test for solving math intelligently or driving car intelligently but we will never have a test for what most people understand as intelligence.