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Message Icon Topic: Smoke testing and sanity testing - Quick and simpl

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Mithi25
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Quote Mithi25 Replybullet Topic: Smoke testing and sanity testing - Quick and simpl
    Posted: 12Oct2009 at 11:05pm

Despite of hundreds of web articles on Smoke and sanity testing, many people still have confusion between these terms and keep on asking to me. Here is a simple and understandable difference that can clear your confusion between smoke testing and sanity testing.

Here are the differences you can see:

SMOKE TESTING:

  • 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.
  • A smoke test is scripted, either using a written set of tests or an automated test
  • A Smoke test is designed to touch every part of the application in a cursory way. It’s shallow and wide.
  • Smoke testing is conducted to ensure whether the most crucial functions of a program are working, but not bothering with finer details. (Such as build verification).
  • Smoke testing is normal health check up to a build of an application before taking it to testing in depth.

SANITY TESTING:

  • 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.
  • A sanity test is usually unscripted.
  • A Sanity test is used to determine a small section of the application is still working after a minor change.
  • 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.
  • Sanity testing is to verify whether requirements are met or not, checking all features breadth-first.

Hope these points will help you to clearly understand the Smoke and sanity tests and will help to remove any confusion.




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tossy
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Quote tossy Replybullet Posted: 14Oct2009 at 11:00pm
Smoke Testing:
Smoke testing is done at the start of the application is deployed. Smoke test is the entry point for the entire test execution. When the application is passed under the smoke test then only further system testing or regression testing can be carried out.

In general smoke testing is done when the higher version of the build is deployed and is done at each and every time the build is deployed. In smoke testing the main functionalities are tested and the stability of the system is validated.

Sanity Testing:
Sanity testing is also similar to Smoke testing, but has some minor differences. Sanity testing is done when the application is deployed into testing for the very first time and in smoke testing only positive scenarios are validated but in sanity testing both the positive and negative scenarios are validated.

For example, if the new software is crashing systems every 5 minutes, bogging down systems to a crawl, or destroying databases, the software may not be in a 'sane' enough condition to warrant further testing in its current state.


Edited by tossy - 14Oct2009 at 11:01pm

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