What Is Smoke Testing? Benefits and Implementation Strategies

Testing a product in the final development stage is a risky approach. As the developers proceed with the further stages, they might overlook the imperfections and continue with the plan. However, the earlier the bugs are detected, the easier it is to fix them. That is why conducting smoke testing is crucial.

This article will shed more light on the smoke testing process, its pros and cons, and the most effective implementation strategies.

What Is Smoke Testing, and When Do We Do It?

Smoke testing, also known as build verification testing or confidence testing, is a procedure that determines whether the software build is stable or not. It is conducted in the early development stages and thus helps recognize global issues that prevent users from using basic software functions.

This testing approach doesn’t go into detail, like, for example, unit or usability testing. Its concept is to verify whether the basic functionality runs as planned. If the quality assurance (QA) team discovers the issues, they send the build to the developers for fixing.

What Is the Difference Between Sanity and Smoke Testing?

Smoke testing is performed by the testing and development team and aims to approve software stability. Sanity testing focuses on the rationality of the platform and is only conducted by QA. The first testing type checks the whole software and verifies all the basic functionality, whereas the second one observes certain parts of the program and focuses on new functionality.

What Is the Difference Between Regression and Smoke Testing?

Regression testing goes beyond the key functions and discovers more in-depth issues on a stable build. It is performed when the new features have been deployed. However, smoke testing comes before regression, and it serves to accept or decline the build.

Advantages of Smoke Testing

Conducting smoke tests comes with many benefits. Here are some of them.

Early Detection of Serious Defects

Build verification testing discovers the issues at the very first development stage. And when the errors get fixed earlier, it minimizes the risks of receiving software full of bugs at the final creation phases. Rebuilding functions at the beginning is cost-effective but may take a lot from a budget at the end of the process.

Improved Software Stability and Reliability

The software build is stable and well-developed if it passes a smoke test. On bug-free software, developers can add more functionality without being concerned about whether it will provoke more bugs.

Improved Efficiency of the Software Development Life Cycle

By implementing the practices of smoke testing, there are more chances to stick to a software development life cycle (SDLC). By discovering and fixing errors early, the structured process will enable you to receive a high-quality product within the deadlines.

Higher User Satisfaction and Level of Trust

The winning strategy is providing excellent quality software that satisfies users’ needs and simplifies workflows. Customers will stay with your company When they experience smooth and easy product usage. Smoke tests ensure end-users receive the best software quality.

Disadvantages of Smoke Testing

Smoke software testing also has its disadvantages. Here is what QA teams may face when performing confidence testing.

Limited Coverage

Even though smoke testing verifies the whole software functionality, it still focuses on the basic features. So, only critical paths get tested, while the rest of the functionality doesn’t. This may cause issues, as the principal functions can also contain bugs.

Superficial Analysis

Confidence testing doesn’t dive deep into the tiny details. Its main concept is determining whether the software runs generally, not whether every part of it is ideal. And some errors hide deeper and need in-depth investigation, which is not possible with smoke testing.

How to Perform Smoke Testing

The process of smoke testing consists of several steps. The following are the main stages testers follow when conducting build verification testing.

• Defining the scope of work. Before getting into the testing procedure, testers identify the features they will be testing. For smoke tests, QA teams decide on the basic functionality and what parts of the software belong to the key elements.
• Developing a comprehensive test plan. At this stage, testers write down the test cases and the expected results. This helps to stay on track and build a structured process.
• Choosing the tools. As there is a great variety of tools and platforms for automation, the team chooses the most suitable ones. The proper tool choice depends on how quickly and effectively the smoke testing will go.
• Implementing tests regularly. Part of the strategy is to create and run test suites regularly. Smoke testing is necessary after every major update and code change.
• Documenting results. The final step in smoke testing is documenting results and following the procedure for fixing errors. It serves as a reference for future testing activities.

Smoke Testing Tools

In this section, we will review some of the most helpful tools for smoke testing.

Selenium

This platform is the number one choice for web smoke testing. Selenium allows the team to run tests with the help of a special integrated development environment (IDE). It supports the most commonly used languages, such as C#, Phyton, and Java. Combined with available automatic interactions, it helps run smoke tests with the highest efficiency level.

Cucumber

Cucumber was explicitly used for Ruby-based projects. With time, it added integration with Java and JS, which became commonly used for testing software. Using the Gherkin parser language, this tool works based on behavior-driven development (BDD). All that helps Cucumber run complicated smoke tests to prevent issues in the subsequent development stages.

Appium

Unlike Selenium, commonly used in web development, Appium is perfect for app testing. This platform helps run cross-platform smoke tests due to a special application programming interface (API) that provides IOS and Android operational systems with united test scenarios.

Smoke Testing Best Practises

Implementation of certain practices can significantly increase the efficiency of the testing routine. We gathered some of the best tips for successful smoke tests.

• Involve testers in the early stages. The crucial thing in smoke testing is defining clear goals and requirements. So, it is essential to involve specialists in the early stages of the development process.
• Communicate with the developers. Communication with the development team helps the testers stay in touch with the recent updates and implement the necessary changes into the test routines. It will help make smoke tests more accurate and avoid unwanted edits during manual smoke testing.
• Automate as much as possible. Automated smoke testing is a guarantee of quality during the early development stages. It helps to save time, prevent any potential issues, and significantly increase efficiency.
• Integrate the smoke testing into continuous integration and continuous deployment (CI/CD) pipelines. Continuing the smoke testing after revealing the product in the deployed scenario is crucial. Thus, all the basic functions will run like a clock before transitioning to more complex tests.

Smoke Testing Examples

Smoke testing is commonly used for different purposes. Here are some of the most basic spheres where smoke testing is used.

• Software development. Smoke testing is used in software deployment. It helps to check the basic functions of the program. For example, with the help of confidence testing, specialists can check the ability to log in to the program or order goods on the e-commerce platform.
• Marketing development. In marketing, smoke tests can be used to create possible outcomes of the customer’s behavior. For example, smoke tests are used on fictional websites to check marketing hypotheses.
• Banking development. The financial sphere also requires the presence of smoke testing. For example, developing banking applications needs this kind of testing to ensure the program’s safety.

Conclusion

Smoke testing is a necessary step that verifies software stability. It helps identify the bugs that prevent users from using functionality as intended. Implementing confidence testing methods ensures the product is of high quality and gets a green light for further development steps.