Sure, enforcing invariants is a good thing to do right off the bat. But not "does this code do what it says on the tin?" kinds of tests. Those are better run gr

Sure, enforcing invariants is a good thing to do right off the bat. But not "does this code do what it says on the tin?" kinds of tests. Those are better run gradually, at the (current) developer's behest (and most certainly, not blocking compilation).