what is difference between smoke & sanity testing?
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Answer Posted / moonish
Smoke Test:
When a build is received, a smoke test is run to ascertain
if the build is stable and it can be considered for further
testing.
Smoke testing can be done for testing the stability of any
interim build.
Smoke testing can be executed for platform qualification
tests.
Sanity testing:
Once a new build is obtained with minor revisions, instead
of doing a through regression, a sanity is performed so as
to ascertain the build has indeed rectified the issues and
no further issue has been introduced by the fixes. Its
generally a subset of regression testing and a group of
test cases are executed that are related with the changes
made to the app.
Generally, when multiple cycles of testing are executed,
sanity testing may be done during the later cycles after
through regression cycles.
Smoke Sanity
1 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 sanity test is a narrow regression test that focuses on
one or a few areas of functionality. Sanity testing is
usually narrow and deep.
2 A smoke test is scripted--either using a written
set of tests or an automated test
A sanity test is usually unscripted.
3 A Smoke test is designed to touch every part of the
application in a cursory way. It's is shallow and wide.
A Sanity test is used to determine a small section of the
application is still working after a minor change.
4 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 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.
5 Smoke testing is normal health check up to a build
of an application before taking it to testing in depth.
sanity testing is to verify whether requirements
are met or not,
checking all features breadth-first.
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