Regression vs Retesting

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Regression testing ensures new code changes do not adversely affect existing functionality, while retesting focuses on verifying that specific defects have been fixed.

Regression testing is performed to ensure that new code changes do not introduce new defects or negatively impact existing functionality.
Retesting is done to verify that specific defects identified in previous testing cycles have been successfully fixed.
Regression testing is typically done after every code change, while retesting is focused on specific defects and may be repeated multiple times.
Examples: After a new feature is added to a software application, regression testing is done to ensure that existing features still work as expected. Retesting is done to confirm that a bug reported in a previous release has been fixed.
Regression testing involves running a full suite of test cases, while retesting focuses on the specific test cases related to the fixed defect.

Regression vs Retesting

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