Regrassion Testing

It's a Black box testing Technique.

Testing Conducts on modified build to make sure there will not be impact on existing functionality.

Regression testing is making sure that the product works fine with new functionality, bug fixes, or any change in the existing feature.

In Regrassion Testing Test cases are re-executed to check the previous functionality of the application is working fine, and the new changes have not produced any bugs.

• When we  perform Regression Testing?

- when new functionality added to software

- when there is a change in requirement

- when the bug is fixed

• Types of Regression Testing

1. Unit Regression Testing [URT]

2. Regional Regression Testing[RRT]

3. Full or Complete Regression Testing [FRT]