Smoke, Sanity and Regression Testing

Smoke Testing

• Performed on initial builds.
• Tests the stability of a new build.
• Covers end-to-end basic functionalities.
• Executed by testers & sometimes also by developers.
• A part of basic testing.

Sanity Testing

• Performed on stable builds.
• Tests the stability of a new functionality or code changes in the existing build.
• Covers certain modules, in which code changes have been made.
• Executed by testers.
• A part of regression testing.

Regression Testing

• Performed on stable builds.
• Tests the functionality of all affected areas after new functionality /code changes in the existing build.
• Covers detailed testing targeting all the affected areas after new functionalities are added.
• Executed by testers, mostly via automation.
• Regression Testing is a superset of Smoke and Sanity Testing.