The Importance of Testing Your Architecture

If something is difficult to test, then it's probably architected awkwardly. Sometimes things are hard to test because they are just fundamentally hard or something and there's no way around this. If you run into those kinds of issues where I really need to overload this class or whatever, then maybe you've painted yourself into a corner architecture wise. And in terms of actually testing the UI, it's either manual or you invest in some automated hardware in the loop setup.