if by "chemical tests" you mean compatibility with the human digestive tract and metabolism, then yes

I mean no. It looks very wrong to me to think that art's primary purpose is to be examined. Am I the only one?

Nope. I think art's purpose is to change and mature you, if you let it.

It's just that the Internet is home to a lot of people that believe rationalism is the only valid way to perceive the universe, when in reality it is just one way to do so. Personally, I found myself unhappy when I restricted myself to it. The universe seemed cold, empty, and cruel. I think a lot of people hit this stage and then just give up completely.

It's really sad.

I only meant "examine" as in "observe", "look at", "listen to", as opposed to "use", "run" or "execute". I never meant to make the universe seem cold or cruel. Sorry about that.

To quote the great philosopher Karl Pilkington: "Art is just something for your eyes to look at."