How well are the tests covering the code?

The student asked: “Master, what should I pay more attention to, my tests or my code?”. The master said: “I cannot answer you when you ask the wrong question.” The student thought “oh fuck, here we go again”, but just said: “But master, is it not one or the other?” The master said, “If a bridge is suspended from the pillars. Which is more important the walkway or the pillars?” The student t...