Regression testing is a type of testing that ensures that a software update does not have an impact on the product\'s current functionality. These code modifications could include adding new features, resolving problems, or updating an existing feature, for example.

To put it another way, regression testing entails re-running previously cleared test cases against the new version to check that the app\'s functions are working properly. Furthermore, regression testing is a series of tests, not a single test, that is run anytime new code is added.

This is to ensure that any new functionality, bug patches, or changes to current features don\'t break the product. To verify the impact of the modification, previously executed test cases are re-executed.

Pros and Cons of Regression Testing 

Pros

• Ensure that any code change has no negative impact on other functionalities.
• Ensures that previously addressed issues do not resurface.
• During testing, it acts as a risk mitigation approach.
• Regression testing is simple to learn, comprehend, and analyze.

Cons

• Regression testing can be time-consuming without automation.
• Every tiny code change necessitates a performance.
• The agile sprint may be harmed by an excessively repetitive procedure.
• It necessitates the creation of sophisticated test scenarios.

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