Difference between Smoke and Regression Testing.

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Smoke testing is a quick test to check if the software build is stable, while regression testing is a comprehensive test to ensure new changes do not affect existing functionality.

Smoke testing is done to check if the critical functionalities of the software are working fine after a build, while regression testing is done to ensure that new changes do not impact existing functionalities.
Smoke testing is a subset of regression testing and is usually done before regression testing.
Smoke testing is a shallow and wide approach, while regression testing is a deep and narrow approach.
Example: After a new feature is added to a software, smoke testing will check if the basic functionalities are working, while regression testing will check if the new feature has not affected existing functionalities.

Difference between Smoke and Regression Testing.

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