Sanity and smoke testing difference

Question

Accepted Answer

Sanity testing is a narrow regression test while smoke testing is a broad acceptance test.

Sanity testing is a quick test to check if the critical functionalities are working after a change in code.
Smoke testing is a preliminary test to check if the software is stable enough for further testing.
Sanity testing is usually performed after a build while smoke testing is performed before a build.
Sanity testing is a subset of regression testing while smoke testing is a subset of acceptance testing.
Sanity testing is focused on specific areas of the software while smoke testing is focused on the entire software system.
Example of sanity testing: checking if login functionality is working after a code change.
Example of smoke testing: checking if the software can be installed and launched without crashing.

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