What is the difference between Regression vs. Retesting?

What is the Regression vs. Retesting?

Regression testing: This is a kind of testing your software application when it undergoes a code change. It helps to ensure that the new code has not affected other software parts.

Re-Testing: After a bug or fault is detected and fixed, the software should be retested to confirm that the original defect has been effectively removed. This is called Re-Testing or Confirmation Testing

Distinction between re-testing and regression

Regression

· To find out the issues which may get introduced because of any modification in the app

· The purpose is that any new change in the application should not bring in any new bug in existing functionality

· Verification of bugs are not countable in the regression testing

· It can be done in parallel with retesting

· For regression testing test cases can be automated

· Defect verification is not comes under this type of testing.

· Regression testing is performed only when any fresh new feature is implemented or any modification has been carried out to the code.

Re-testing

· To confirm whether the failed test cases in the final execution are working appropriate or not after the glitches have been fixed

· It ensure that the bug or issue is resolved and the functionality is working as anticipated

· Verification of bugs are incorporated in the retest

· Retesting is done before the regression testing

· For re-test the test cases cannot be automated

· Defect verification always comes under Retesting

· It is executed in the same environment with same data but in new build.