All You Need to Know About Smoke Testing

qa smoke testing

In software development, ensuring that a product works as intended is crucial. One of the methods used to verify the stability of a software application is a smoke test. This blog will delve into the concept of smoke testing and everything you need to know about it. 

So, let’s dive in!

What is Smoke Testing?

A smoke test, also known as build verification or sanity testing, is a preliminary level of testing performed on a software build or application to ensure that the essential functionalities work as expected and that the build is stable enough for more in-depth testing. Testing serves a similar purpose in software development by validating an application’s essential and critical features without delving into exhaustive testing. The primary goal is to detect fundamental issues that could prevent the software from functioning correctly or impede further testing efforts. 

A smoke test is done after a new build is developed or after significant changes are made to the existing codebase. If the smoke test passes, the software build is stable enough to proceed with more comprehensive testing, such as regression testing, integration testing, and user acceptance testing. Smoke Testing emphasizes breadth rather than depth, covering many functionalities to ensure the system’s integrity.

When to Perform a Smoke Test?

A smoke test should be conducted when a software build is available. It serves as a quick check to ensure the build is stable enough for further testing. By performing testing early on, developers and testers can identify critical issues that may arise during more comprehensive testing phases. It allows for timely bug fixes and ensures that resources are not wasted on testing an unstable build.

Here are a few key points to consider regarding when to perform a smoke test:

  • After Each Build: It should be conducted after each new build to catch any regressions or issues introduced during development.
  • Before Regression Testing: It should ensure the build is stable enough to undergo more extensive testing.
  • After Major Code Changes: If significant code changes have been made, it should be conducted to ensure that the changes have not negatively impacted the software’s basic functionality.

Who will Perform Smoke Test?

Smoke testing is typically carried out by the quality assurance (QA) team. The QA team validates the software build’s stability and ensures it meets the necessary quality standards. QA professionals are trained to identify critical issues that impede the application’s smooth functioning.

Here are a few points to consider regarding who is responsible for conducting smoke test:

  • QA Team: The primary responsibility lies with the QA team. Their expertise in identifying critical issues makes them the ideal candidates for this task.
  • Testers: Testers play a crucial role in testing, as they execute test cases to verify the basic functionality of the software build.
  • Developers: Developers are also involved in testing to address any immediate issues during the testing process.

Need for Smoke Testing With Its Use Cases?

QA Smoke test is needed to ensure a software build is stable and ready for further testing. It helps identify significant issues early on, reducing the chances of wasting time and resources on unstable builds. Here are some critical use cases where smoke test proves to be beneficial:

  • Release Validation: 

Scenario: Before a software release to production or a broader user base.

Use Case: Smoke testing provides a quick check to confirm the essential functionalities are intact, minimizing the risk of releasing software with major defects and enhancing overall software quality.

  • Integration Testing: 

Scenario: When integrating different modules or components of the software.

Use Case: Smoke testing helps identify integration issues early in the development process, allowing teams to address them before moving on to more detailed integration testing.

  • Continuous Integration:

Scenario: When different systems or third-party components are integrated.

Use Case: Smoke testing aids in verifying the interoperability of integrated systems, highlighting any immediate compatibility issues and allowing teams to address them promptly.

Advantages of QA Smoke Test

It offers several advantages to the software development process. By conducting testing, teams can identify critical issues early on, streamline the testing process, and ensure the stability of the software build. Here are some key advantages of the smoke test:

  • Early Detection of Major Issues: It allows for the early detection of significant issues that could hinder further testing. By catching these issues early, teams can address them promptly and prevent delays in the development process.
  • Cost-effective: Testing helps reduce the overall testing cost by identifying critical issues early on. This prevents the need for extensive testing on unstable builds, saving time and resources.
  • Improved Software Quality: By ensuring the stability of a software build through testing, teams can deliver a higher-quality product to end users. This enhances customer satisfaction and reduces the likelihood of post-release issues.


The QA team, along with testers and developers, plays a crucial role in conducting smoke tests and ensuring the overall success of the software build. So, incorporate the QA smoke test into your development process to reap its benefits and achieve a smoother software release. Remember, the QA smoke test is just one piece of the testing puzzle. It should complement other testing techniques to ensure comprehensive coverage and a robust software application. To learn more about smoke testing and other software testing techniques, contact QASource.
Our team of experts can guide you through the intricacies of software testing and help you deliver a top-notch product to your customers.

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