Smoke Testing Vs Sanity Testing: Explained With Example

Bethany Wilson
3 min readJun 2, 2022


Smoke testing and sanity testing play a key role in the software development process. After a software build has been released, the inclusion of smoke testing and sanity testing sets in. The entire application is focused and worked upon in smoke testing. Only a particular component of the entire application is focused and worked upon in the sanity testing method. Once this particular component is justified, which means it is working as per the expectations, then the next component of the application is focused and worked upon.

In this article, you will get to know about the differences between smoke and sanity testing explained with an example.

What is a software build?

Software build plays a very important role in smoke and sanity testing and hence needs to be understood.

It is obvious that a single code cannot build complete software. Depending upon the complexity of the software, there may be source code files in thousands. The compilation of these source codes is done into a single executable file that will be shared by the release team and can then be deployed.

The build is the process where the required source code files are taken and then compiled, through which a build artifact is generated, such as executable programs or binaries, for a software release. Eventually, the software is being developed, so that it can be implemented.

What is Smoke testing?

It is a testing method that verifies whether a deployed software build is stable or not. Specific sections of the program are looked into to identify problems rather than the entire application. The specific software functionality is tested. When a new build is delivered by developers to the QA team, smoke testing is performed. It can be performed by both testers and developers as it is a simple testing process and requires less time to perform. This testing method is also known as “Build Verification Testing.”

Example of smoke testing:

Assume that a company is in the process of developing an e-commerce site. When the release of a new build takes place for testing, the QA team must ensure that the core functionalities are working just fine. The e-commerce site is accessed and an item is added to the cart to place an order. This is the general workflow in most of the e-commerce sites. If the flow works then it means the build has passed. Then, further rounds of testing can be performed.

What is Sanity testing?

It is a testing method that determines whether the new modules that have been added to the existing software build are stable enough so that they can be passed on to the next phase of testing. The quality of software regressions is quickly assessed by this testing method. Sanity testing also provides a platform to ascertain whether the build can go through end-to-end testing effortlessly in the case of small code changes. If the sanity test fails, then the build is refused and will not be sent for further stages of testing. Sanity testing is also called as “Surface Level Testing.”

Example of sanity testing:

Assume that a company is in the process of developing an e-commerce site. Search functionality is a new feature that has been released. In this testing method, the focus is on making sure that the search functionality is working fine as per the stated expectations. Then, the other functionality of the site can be focused and worked upon.

Conclusion: If you are looking forward to implementing smoke Testing or sanity testing or both for your specific project, then do get connected with a top-notch software testing services company that will provide you with structured testing solutions that are in line with the project requirements.

About the author: I am a technical content writer focused on writing technology specific articles. I strive to provide well-researched information on the leading market savvy technologies.



Bethany Wilson

Hi, this is Bethany. I’m working as Senior Software QA Tester with TestingXperts.