What is the Regression testing ?
Regression Testing - Regression testing is the bassically use for Check that change in code have not effected the working functionality. Its a re-execution of selected testcases on modified build to ensure bug fix work completeness and correctness. Its testing after the fixing of defect as bug and solving it ,we test this bug whether it effects any thing in future. Its testing the bug encountered build once again after developing with same inputs. Its testing to make sure that there are no new bugs raised due to fixing one. regression testing follows retesting .
Regression testing is of 3 types They are :
> Unit regression testing
> Partial Regression testing and
> Complete regression testing.