Your understanding of shit tests isn’t correct. Shit tests are a subconscious behavior by women used to test a man’s confidence.
It could be a small comment: “your shirt looks weird”. If a man is flustered or defensive by a comment like this, it might signal that he’s less able to protect her and her offspring, and less able to have high status within the tribe.
Occasionally, women might shit-test a man by screaming, shouting and throwing verbal abuse (not many women do this). If a man is able to stay calm and in control, even with a women doing all this, it’s a signal that he can, again, protect her and her children.
Women can’t judge a man’s character by what he says ( he can simply lie). But a shit test is a method of discovering the true character of a man. A man can’t lie his way through a shit test, his body language and sub communications will give away if he gets flustered by a shit test.
This is evolutionary psychology, the very real scientific method red pill ideas are based on.