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Saturday, March 20, 2010

Difference between Smoke and Sanity testing


Smoke : Smoke testing originated in the hardware testing practice of turning on a new piece of hardware for the first time and considering it a success if it does not catch fire and smoke. In software industry, smoke testing is a shallow and wide approach whereby all areas of the application without getting into too deep, is tested.
Sanity : A sanity test is a narrow regression test that focuses on one or a few areas of functionality. Sanity testing is usually narrow and deep.


Smoke : A smoke test is scripted--either using a written set of tests or an automated test
Sanity : A sanity test is usually unscripted.


Smoke : A Smoke test is designed to touch every part of the application in a cursory way. It's is shallow and wide.
Sanity : A Sanity test is used to determine a small section of the application is still working after a minor change.


Smoke : Smoke testing will be conducted to ensure whether the most crucial functions of a program work, but not bothering with finer details. (Such as build verification).
Sanity : Sanity testing is a cursory testing; it is performed whenever a cursory testing is sufficient to prove the application is functioning according to specifications. This level of testing is a subset of regression testing.


Smoke : Smoke testing is normal health check up to a build of an application before taking it to testing in depth.
Sanity : sanity testing is to verify whether requirements are met or not,
checking all features breadth-first.

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