When you try to define what testing is, you will come up with a multitude of answers, and many of us will not understand the full benefits of testing until we've been burnt by buggy software or we have tried to change a complex code base which has no tests.
When I tried to define testing, I came up with the following:
"The art of a good night's sleep is knowing you will not get woken by a support call and the piece of mind from being able to confidently change your software in an always moving market."
OK, so I am trying to be funny, but the concept is correct. Nobody enjoys debugging poorly written code, and indeed, nobody enjoys the stress caused when a system fails. Starting out with a mantra of quality first can alleviate many of these problems.
Over the last 20 years, techniques like TDD have become commonplace. In some instances, it is not as...
