An Overview of Regression Testing

Regression Testing

Regression testing is a black-box testing technique. It's used to authenticate that a code change in the software doesn't impact the existing functionality of the product. Regression testing is making sure that the product works fine with new functionality, bug fixes, or any change in the existing feature. The test cases are executed to check the previous functionality of the application is working alright, and the new changes haven't produced any bugs.

Regression testing can be performed on a new build when there's a significant change in the original functionality. It ensures that the code still works indeed when the changes are occurring. Regression means re-test those parts of the application, which are unchanged.

Regression tests are also known as the Verification Method. Test cases are often automated. Test cases are needed to execute numerous times and running the same test case again and again manually is time-consuming and tedious too.

Examples of regression testing

1. Bug regression We check a specific bug that has been allegedly fixed.

2. Old fix regression testing We check several old bugs that were fixed, to see if they're back.

3. Smoke testing is also known as build verification testing fairly small suite of tests That is used to qualify a new build. Typically, the tester is asking whether any factors are so obviously or poorly broken that the figure isn't worth testing or some components are broken in obvious ways that suggest a corrupt build or some critical fixes that are the primary intent of the new build did not work. The typical result of a failed smoke test is the rejection of the build, not just a new set of bug reports.

Types of Regression Testing

• Unit Regression Testing
• Regional Regression Testing
• Full or Complete Regression Testing

Conclusion

Regression Testing is one of the essential aspects as it helps to deliver a quality product that saves associations time and money. It helps to give a quality product by making sure that any change in the code doesn't affect the functionality.

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