Imagine a situation where a software system, after a minor patch, begins to exhibit issues in previously stable functionalities. How might a well-structured regression testing plan have prevented this?

  • By only testing the new functionality
  • By testing only the patch itself
  • By retesting the entire software
  • By ignoring the patch
A well-structured regression testing plan would have prevented issues after a minor patch by retesting the entire software. This ensures that not only the newly patched code is checked but also that it doesn't break any previously stable functionalities. Ignoring the patch (option 4) or only testing the new functionality (option 1) would not provide adequate coverage.
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