So how could you expect to go from zero to full fledge software state of the art goodness? With an existing code base never the less! Well, you can't :) Won't happen! But what I am seeing is something positive never the less, because if one set of tests are created, that does something, it can inevitably show that tests are *good*. That they have some form of payback. Which can prove that investing in the right kind of test is a great improvement and a gain.
So what is the right kind of test you might ask? One that finds something wrong with your software so that you can fix it, have more confidence in your code, and costs less than the gains. No point in expensive tests that doesn't find anything wrong!
One thing among many that tests can lead to is something I personally think is a good thing™ Always having shipping quality. I think that by always having a branch (or as they are sometimes called, stream) that is fully tested and ready to ship gives rapid development a new meaning. Any new development will have to reside on a different branch until ready (and thus having tests) and then integrated.
So what is so good about it? Think of how things usually go when it is time to ship to the customer. Tests are inevitably done at the end, and fails, or deployment fails, or the customer finds something hideously wrong. If you automatically test your software all the time, and only have finished features in it, you can any day ship it off to a customer with confidence. That's pretty cool to me. It also means that you have to have a state of the art deployment system. But that is a topic for another day:)
If anything in this little post seems a bit distracted it's because I am not feeling to well. I am in fact sick, which has affected my poor head. Trying to keep a thought up there among the cotton balls has proven almost futile. I might return to the subject some day, as I have more to say about it. And if there are things that seems to sound like it was agile don't fret, good ideas are good ideas, no matter the label or who thought of them:) And sharing ideas are good™