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Regression Test - CI/CD Glossary Definition

A regression test guards against breaking things that used to work when new code lands.

A regression test re-runs existing tests after a change to confirm that previously working behavior still works and that a fix or feature did not reintroduce an old defect.

A regression test guards against breaking things that used to work when new code lands.

In CI

The regression suite is usually the full test set run on every pull request; a good practice is adding a regression test for each bug fix so the same defect cannot silently return.

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