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What Is Regression Testing?

Regression testing ensures that code changes do not introduce new defects into existing functionality.

Related terms: automated testing, code coverage, CI/CD pipeline, test impact analysis

Regression Testing: Examples in Context

A software development team runs regression tests after each code change to ensure that new features do not introduce defects or disrupt existing functionality.

An e-commerce website conducts regression testing before a major release to verify that core shopping cart functionality remains intact.