Regression testing

lastmod 2026-06-12created 2022-02-165 edits

Any software testing method that looks for regression bugs can be called regression testing (also non-regression testing). A regression bug is a problem in a software feature that previously worked correctly. Regression bugs usually occur unintentionally while the program is being changed.

A common regression testing method is to rerun previously executed tests and check whether previously fixed bugs reappear.

See also

• TDD
• UnitTest
• Test
• Software testing
• Smoke testing (Korean: 스모크 테스트)
• Sanity testing (Korean: 새너티 테스트)
• Regression testing (Korean: 회귀 테스트)

Favorite site

• Wikipedia (en) Regression testing
• What is a Regression Test?
• The difference between a Sanity Test and a Smoke Test, plus Regression Test