Agree. IMO the main benefit/purpose of tests is to ensure you don't unintentionally break something later down the road, when making changes elsewhere. They're there to help you realize that something unexpected has changed.
Secondary, they can help you verify the correctness of certain things that may go unnoticed (produce negative effects elsewhere) otherwise. But it's less useful to spend a lot time/effort on writing tests that verify things that are obvious to see anyway.
Secondary, they can help you verify the correctness of certain things that may go unnoticed (produce negative effects elsewhere) otherwise. But it's less useful to spend a lot time/effort on writing tests that verify things that are obvious to see anyway.