It depends on how large the company is. Are you doing it on your own, you'll probably won't need unit cases because you know it from the inside and out. You al

It depends on how large the company is. Are you doing it on your own, you'll probably won't need unit cases because you know it from the inside and out. You also know what to test. Larger companies and eg. Distributed companies are code-meshes. Everyone works in most of the code. You need code-relviews. And smaller companies are in between. They aren't sure yet which road to take. You will have to do the grunt work if you want something to change