I think that the root of such test is the idea that "I write more test than you so i'm better" mentality. Similarly to evaluating productivity to number of line

I think that the root of such test is the idea that "I write more test than you so i'm better" mentality. Similarly to evaluating productivity to number of line of code, evaluating "seriousness/professionalism" on number of tests bring us this sort of irrational behaviours.