"If you have a good set of functional tests, is it necessary to write unit tests?".

YES, unit tests shall be applied to each module before functional tests, even before the whole system/program is ready. And should save a lot of debugging time.

As matija suggested above a good set of functional tests guarantee that the product works fine for the time being. However, consider future extentions - individual units may become exposed to inputs you have never dreamt of.

But if you are limited in your time - consider writing "release notes".


In reply to Re: Functional and Unit Test Redundancy by bfilipow
in thread Functional and Unit Test Redundancy by saintbrie

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