A bug which is fixed by the development team needs to be tested completely to check if any other other features of the applications have been affected due to the defect fix.
Anonimo
9 gen 2019
When a new functionality/defect fix is introduced in a software program, it is important to make sure that it has not affected the already existing functionalities and the software program behaviour has not changed from the expected. A set of already existing test cases related to older critical functionalities are re executed. This is called as regression testing.