re: What are your biggest problems with unit testing? VIEW POST

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My biggest issue is that it feels like I'm being redundant and that it takes twice as long to code and write tests, tests which, as someone mentioned, the client will most likely not see the value in and want to pass on

 

Unit testing in software engineering is the equivalent of double-entry practices in accounting. If you hire an accountant and ask them to itemize the invoice they send you, and in the invoice you notice that they are doing the double-entry practice, you are not going to deny the value of entering details twice and refuse to pay them for their work. Because that is a proven practice that works, is practices all over the world, and ensures quality of accounting. Why would building software all of a sudden be exempt from the requirements for quality?

 

See I’m not familiar with that practice either. But I think once more experience is gained , the value of testing becomes more apparent. I think it’s hard to remember what it’s like to not see value in something once you do. Thanks for your response!

In simpler terms, writing unit tests first is the equivalent of measuring before you cut. If you hire a contractor and they start measuring before they begin to cut (whatever the task at hand might be), you would look foolish if you start to complain about why are they wasting their time on measuring.

The same applies to software development. No one has a valid argument complaining that you writing a unit test (you measuring before you cut) is a wasted effort. Those arguments simply do not hold water under any circumstances.

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