it’s not really extra work at all. Writing these tests is simply the work of specifying the system. Specifying at this level of detail is the only way we, as programmers, can know what “done” means. Specifying at this level of detail is the only way that the stakeholders can ensure that the system they are paying for really does what they need. And specifying at this level of detail is the only way to successfully automate the tests. So don’t look at these tests as extra work. Look at them as massive time and money savers.
