Sure. Only it is a lie that it is cheap. Maybe CPU cycles are cheap, but writing that code is not. Which is exactly the point of my rant. My position is that

Sure. Only it is a lie that it is cheap. Maybe CPU cycles are cheap, but writing that code is not. Which is exactly the point of my rant. My position is that it makes much more sense to focus on tests that test observable behaviour that is not supposed to change a lot because it is a contract between the service and whoever the client is. Writing this code is still expensive, but at least now it is much easier to make sure the return is higher than the investment.