In this article we will be learning about regression testing but in a compact manner. Remember how desperate students become during exams to find concise and compact notes? This article would help you during your exams as well. So let’s get into regression testing definition.
Regression testing is a crucial part of software testing that verifies a software application still performs correctly after changes or modifications are made. It is done to ensure that any corrections, modifications, bug fixes, and enhancements that are made to a software application do not adversely affect or break the existing features and functions of the application.
WHEN IS REGRESSION TESTING PERFORMED?
Regression testing is typically performed after changes or modifications are made to the application's source code. It is a type of testing that focuses on verifying that modifications do not have a negative effect on existing features and functions. This type of testing also ensures that changes do not introduce any new errors or bugs into the application.
When performing regression testing, testers will typically execute the same tests that were run prior to the change being made. This helps to ensure that existing features still work the same way as they did prior to changes being made. Additionally, testers may also create new tests that can be used to verify any new features or changes that were introduced by the modifications.
TYPES OF REGRESSION TESTING
- Unit Regression Testing
Unit regression testing is a type of software testing that focuses on testing individual units of code and validating that each unit works as expected. This type of testing is often done by developers who are building a codebase, to ensure that every piece of code is functioning correctly. - Regional Regression Testing
Regional Regression testing is a specialized form of software testing that is used to test the impacts of changes or modifications made to the software in specific areas or regions. This testing is important as it helps to identify any potential problems that may arise due to the changes made. - Full Regression Testing
Full regression testing is an important part of software testing. It is the process of testing a software application after making modifications, adding new functionalities, and fixing defects. It is usually performed in later releases after the first or first two releases as a final test before launching.
PROS & CONS
Regression testing has many benefits, including enhanced quality, reduced defects, increased productivity, and reliability. It aids in locating software flaws and directs programmers toward areas that need testing. The high expense of developing test cases, the time-consuming nature of running tests, and the challenge of managing test cases are some of its drawbacks. Particularly for projects that must be completed quickly, the cost of developing test cases can be considerable, and updating existing test cases can take a lot of time and money. Overall, striking a balance between these benefits and drawbacks is essential for effective software development.
TOOLS USED
- IN SELENIUM: Selenium offers a strong tool for online application testing, enabling testers to automate browser actions, carry out cross-browser testing, and carry out regression testing. Additionally, it enables testers to create tests in a variety of computer languages, including Python, JavaScript, Java, C#, and Java. In addition, Selenium provides automated client-side and server-side testing, giving testers quick and simple access to web application feature testing.
- JUnit: JUnit, on the other hand, is a unit testing framework for Java-based applications. It provides a set of annotations, assertions, and test runners that can be used to create and execute regression tests for individual units of code. It allows developers to easily create tests that can be run over and over again to ensure that the code is working as expected.
CONCLUSION
In conclusion, regression testing is a vital tool in software testing that can save organizations both time and money. It helps to ensure that any changes to the software have not caused any unintended side effects or bugs, and helps to identify any potential problems that may have been introduced by the changes. Regression testing is an effective strategy that should be incorporated into any software testing process.
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