The idea of “unit testing” is pretty well-known in programming circles. Everyone has some concept of what it means and most software developers practice some form of unit testing.
Yet, there is disagreement about unit testing. If you’re trying to get a handle on this topic for purposes of supporting existing applications in a z/OS environment, you may find a lot of contradictory information online. Opinions are often presented as facts, and are defended strongly. I’d like to try to tease some of that apart so you can make practical sense of it.
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