Why Regression testing?
Because it allows developers to make continuous improvements to applications without disturbing the end user's experience. In addition to validating the functionality of new code, it ensures its compatibility with existing features.
When Regression testing is done?
- When new feature or functionality is added
- When the defect fixed
- When new version of the software is released
- When changes to the User Interface are made
- When new requirement is added to an existing feature
How to select test for Regression
- Select test cases where there are recent code changes
- Select test cases in the areas with frequent defects occur
- Select all complex functionality
- Select the test case which is high priority
- Select failed test cases
How to perform regression?
- Identify source code changes
- Prioritize code changes and product requirements
- Select test cases to re-run
- Categorize test cases
- Prioritize test cases
- Schedule and execute test cases
To improve Regression Testing
- Build your Regression suite
- Select your regression test approach
- Select test cases for the regression suite
- Decide how often you want to run regression tests to run.