Regression Testing Guide Tools, Types and Techniques

1. Regression Testing Guide Tools, Types and Techniques

2. What is Regression Testing? According to Wikipedia, Regression testing is an important type of software testing that revolves around re-running functional and non-functional tests. These tests are conducted to ensure and check the previously developed and tested software still perform well even after a change is made in the software. Primarily, it checks whether the previous functionality of an application is working as intended even with a new feature added. It checks for any new bug or error in the existing software and is a verification process that takes place in the software.

3. When Should Regression Testing Be Taken Up? Whenever a new feature is developed, or when an existing feature is improved or if there are any UI updates made, ideally there is a dierneed to perform software regression testing. Functional and regression testing should be performed to ensure that the changes do not impact the existing functionality of the software. In addition, the regression testing process should be performed whether there is a small or a large change in an application that might affect any change to its old functionality. Functional regression testing teams must verify that the new code does not conflict with older code, and also confirms that the code that has not been changed is still working as expected.

4. What are Types of Regression Testing? 1. Corrective Regression Testing 2. Retest-all Regression Testing 3. Selective Regression Testing 4. Progressive Regression Testing 5. Complete Regression Testing 6. Partial Regression Testing 7. Unit Regression Testing Various types of regression testing can be taken up to ensure existing functionality is not affected by the recent changes in the application. Interestingly, within the software development process, there are many types of software testing that are taken up along with regression testing to achieve quality software.

5. What is Regression Testing in Agile? In an agile environment, software testing needs to be taken up with each sprint and the quality assurance testers should make sure that new changes do not affect the existing functionality of the application. Moreover, in agile scenarios with iterative changes, there are more frequent build cycles and continuous changes are added to the application. This sort of frequent change makes software regression testing mandatory in agile. Thus, for successful regression testing in agile, the testing team should follow an effective regression testing strategy and build the regression testing suite from the onset of software product development. The QA teams should continue developing the test scripts alongside each development sprints to ensure effective regression testing is achieved.

6. What should be a Regression Testing Strategy? Define and Identify Needs and Components of Initial Phase: This is the first and important step to start with the software regression testing process wherein as soon as changes takes place within the software, regression tests should ideally be initiated. The main motive is to test the existing code or functionality with the help of regression test scripts. Therefore, careful planning should be taken up to identify the needs and components of regression testing. Define Testing Requirements: This is the second phase wherein defining of the right test cases for a project should be taken up. This phase is achieved with an effective collaborative approach established between stakeholders, developers, and software test engineers. Therefore, a common consensus is required to decide upon the test cases that need to be prepared which could be reused each time there is a change in the application. Define Entry & Exit Criteria: There is an effective need to define the entry and exit points of regression testing such that the test objectives are in sync with the project requirements. Before beginning the software regression testing, the entry and exit criteria should be identified to smoothen the process of regression testing.

7. Conclusion Thus, Regression testing is a reliable way to ensure that the application remains defect-free even after frequent changes. It also ensures that the recent changes have not broken any existing functionality. Regression testing should be performed to find bugs in a new software release and ensures the previous bugs are fixed. The process of regression testing should be taken up with any new change in features and these should be verified with an effective regression test automation strategy and can be tested either manually or by using an automated regression testing framework and tools. How TestingXperts(Tx) can help? Tx delivers a spectrum of Regression testing services such as: – Software Regression Testing – System Integration Testing Regression – Functional Regression Testing – Automated Regression Testing – End-to-End Regression Testing Leverage our next-gen software regression testing services to ensure quality software that delivers great user experience.