Software Testing Tutorial #23 - What is Regression Testing

[@manoj_mafiosi]

**Demystifying Regression Testing - Software Testing Tutorial #23 - Notes** **Understanding Regression Testing:** - Regression Testing verifies that the existing functionality of software continues to work as expected, even after changes or additions to the code. - It differs from Retesting, which focuses solely on testing specific defects. **When to Perform Regression Testing:** 1. **Defect Fix:** After identifying and fixing a defect to confirm its resolution. 2. **New Functionality:** When adding new features to ensure they don't disrupt existing functionalities. 3. **Code Refactoring:** After refactoring to check for new issues. 4. **Configuration Changes:** To verify that changes in configuration settings don't affect the application adversely. **Regression Testing Techniques:** 1. **Execute All Test Cases:** Re-run all existing test cases (usually with comprehensive automated Regression Test Suites). 2. **Test Selection:** Select test cases based on an analysis of impacted modules, often with developer input. 3. **Prioritize Test Cases:** Focus on high-priority test cases, especially those related to critical functionalities. 4. **Integration Testing:** Ensure integration points remain functional after code changes. **Selecting Regression Test Cases:** 1. **Frequently Used Functionalities:** Include test cases for frequently used functionalities. 2. **High Priority:** Prioritize high-priority test cases, especially for critical functionalities. 3. **Integration Test Cases:** Include integration test cases to maintain functionality at integration points. 4. **Module-Based Selection:** Analyze the impact of code changes on modules and select test cases accordingly.

[@ayeshabinshahbel696]

Thank you so much for the brief notes! Truly appreciate it 💮

[@alawiSahel]

Is it not Regression Testing Techniques are the same as Selecting Regression Test Cases?? You select the test cases based on which Technique do you want to use?

[@manoj_mafiosi]

@@alawiSahel Selecting regression test cases is the specific action of choosing which tests to run based on the chosen technique. The technique you choose influences how you pick these cases. For example: If using retesting everything, you simply select all existing test cases. If using equivalence partitioning, you select a representative sample of test cases from each identified area. If using module regression, you only select test cases that interact with the changed modules. If using risk-based selection, you analyze code changes and identify areas with higher risk of regression, then prioritize test cases related to those areas.

[@jacekm2985]

​@@alawiSahelwas wondering the same . Its confusing

[@jacekm2985]

​@@alawiSahelor maybe just the naming (selecting test cases) is confusing and it's more about what should be included in the whole regression test suite. And then based on that you use one of the techniques mentioned - either testing all, selecting based on impacted areas, based on prioritisation

[@krisy8434]

very well explained. your work is much appreciated, Thanks

[@softwaretestingmentor]

Glad it was helpful!

[@avoautomation8573]

Regression testing is the type of software testing used to verify any modification or update in a software to see that those modifications did not alter the software in anyway. Avo Automation provide best-in-class automated testing platform to make regression testing or any other type of testing easy and error-free.

[@bryanhall9230]

Great video, thank you for the quick and concise information.

[@jijinini4863]

Very easy and clear explanation Thank you very much sir for your help

[@SoftwareTestSolutions]

Thank you very much for explaining the Regression Test in detail. Can you also make a video explaining the difference between Regression and System Tests?

[@merigrigoryan2020]

The videos are very helpful. Please, create more content.

[@marianagevorkyan4196]

I agree

[@archukutehere]

This exactly what I m looking for

[@elnino61]

Thanks a lot for everything. You are a good teacher.

[@hasanozdemir1067]

Awesome video! Thank u so much!

[@softwaretestingmentor]

Thanks and most welcome.😊 Keep watching for more videos!

[@nothingness627]

Excellent videos to understand the testing process. Tried to send some dollars, but some issues with UPI.

[@mikkid340]

Thanks life changing content your creating!

[@ritaneliman1351]

This was very easy and educational for me thank you. 🙏

[@softwaretestingmentor]

You're very welcome. Keep watching for more videos and tutorials.

[@PriyankaYadav-cp5ss]

So good explanation

[@softwaretestingmentor]

Glad you liked it. Keep watching for more videos!

[@shanks9926]

What is Regression Testing? Regression testing is a type of software testing conducted after a code update to ensure that the update introduced no new bugs. This is because new code may bring in new logic that conflicts with the existing code, leading to defects.

[@archukutehere]

Perfect perfect.

[@repalda4736]

THANKS DUDE

[@softwaretestingmentor]

You're welcome! Keep watching and sharing.

[@ma8969]

thank you

[@vijnavijayan6209]

Thanks 👍🙏

[@softwaretestingmentor]

Welcome 👍! Thank you very much. Keep watching and sharing.

[@archukutehere]

Mean no of all test suites are different or we will continue all in single test suite?

[@archukutehere]

Sir can u tell me who decidea the entry & exit criteria? Plz reply

[@mangal_ava9]

Sir , please provide us notes also

[@user-us5zm2ve7o]

explain test policy concept

[@archukutehere]

I have one question that if we make test suite of sprint 1 because of bug fixes in sprint 2 i.e. test suite 1 then we run it.. now I got bug in sprint 3 so the test suite which I will going to create of sprint 1 & sprint 2 .. we will give name test suite2 or we will continue it in test suite1

[@archukutehere]

Sir answer

[@pallavisatpute4910]

Why you are not writing defination on blackboard

[@KaisarAnvar]

because YOU are responsible to take notes when the teacher speaks.

[@amansharma-zp1tn]

Hi