I am not sure I understand the point of making code into a library if it isn't going to be reused outside of the application. YAGNI and all that. I would agre

I am not sure I understand the point of making code into a library if it isn't going to be reused outside of the application. YAGNI and all that. I would agree with unit test logic, integration test glue, but that is heading into truism country.