What is regression testing and why is it important in software development?

  • Checks for user acceptance criteria
  • Repeats test cases after code changes
  • Tests new features for bugs
  • Verifies unchanged code behavior
Regression testing involves re-running test cases to ensure that new changes haven't adversely affected existing functionalities. It verifies that the code behavior remains unchanged post-modifications. This is crucial in software development to catch bugs introduced inadvertently during updates and to maintain overall system reliability and stability. It also helps in ensuring that new features don't break existing functionalities.
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