That's a beneficial side effect, not the purpose of having tests.
It's like saying the purpose of eating is to fill your senses with wonderful flavours and texture. No, that's a beneficial side effect: the purpose of eating is to prevent death from starvation.
It's like saying the purpose of eating is to fill your senses with wonderful flavours and texture. No, that's a beneficial side effect: the purpose of eating is to prevent death from starvation.