Is Unit testing functional or nonfunctional?

General Discussions
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Is Unit testing functional or nonfunctional?

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Integration tests or functional tests for regression testing rely heavily on unit testing. Unit testing’s major goal is to validate small bits of code, specific functions/algorithms. Unit tests are typically designed by developers with the goal of being as simple as possible.

Unit testing is a type of functional testing for the following reasons:

  1. Early in the development cycle, fix bugs.
  2. A unit test can be used to test small functions and algorithms.
  3. API level unit testing is also possible.
  4. To assist with code reuse.