Smoke Testing vs. Sanity Testing

Smoke Testing and Sanity Testing are both quality assurance testing tools. Those tests are highly used at an international level in the world.

Main Difference

The primary function of Smoke Testing is to test the parts of a software or application. On the other hand, Sanity Testing is mainly used to detect faults and wrong actions. Moreover, many people are confused about what smoke and sanity testing are. So to clarify their confusion, let us discuss the main differences between Smoke and Sanity Testing in detail.

What is Smoke Testing?

Smoke Testing is specific for the quality assurance professionals that test the functions of the software. The people that so smoke testing are known as testers or developers. It tells how software or application are built and how they perform.

Moreover, sometimes Smoke Testing may be stable, and sometimes it may be unstable. Furthermore, the primary function of Smoke Testing is to verify the application’s stability. The test is used at the starting level of a product. In addition, it checks the default at a high software and application level.

Features and users

  • Documented
  • Check the ability of a software
  • High-level checking
  • Use for the verification of software
  • Stable or unstable both
  • Test the functions

What is Sanity Testing?

Sanity Testing is a testing and checking tool that is highly used professionally. The primary function of Sanity Testing is to detect the defaults and errors in software or an application. Moreover, Sanity Testing is always stable.

Furthermore, Sanity Testing has more stability in contrast to Sanity Testing. In addition, Sanity Testing is unscripted. Also, it checks whether the software or company is working correctly. This testing system is cheap than other tests. Lastly, it does not take a lot of time.

Features and uses

  • Always stable
  • Detect the errors
  • Highly using
  • Easy to use
  • Use to check the stability
  • Unscripted
  • Affordable cost

Key Differences between Smoke Testing and Sanity Testing

  1. Sanity Testing is always stable, whereas Smoke Testing may be stable or may be unstable.
  2. Sanity Testing is less costly as compared to Smoke Testing.
  3. Smoke Testing performs before regression. On the other hand, Sanity Testing works before relapse and after the smoke test.
  4. Smoke Testing is Scripted, whereas Sanity Testing is unscripted.
  5. Smoke Testing is to check the stability, while Sanity Testing detects errors.
  6. Sanity Testing is accepted while Smoke Testing is regressing.

Comparison table between Smoke Testing and Sanity Testing

Features Smoke Testing Sanity Testing
Type Regression Acceptance
Rechecking service No available No available
Function To check stability To detect the errors


In a nutshell, we can say that Smoke Testing and Sanity Testing are different. These tests are used for checking the strength of a building.