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Thread: What exactly Regression testing?

  1. #1
    bhushanbhangale
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    What exactly Regression testing?

    Hi friends,

    Please any one tell me what is exactly Regression testing. Can you execute all test case again or important test case again after fixing the bug.
    if i am wrong please correct me.


  2. #2
    Contributing Member
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    Feb 2010
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    49

    Re: What exactly Regression testing?

    Quote Originally Posted by bhushanbhangale View Post
    Hi friends,

    Please any one tell me what is exactly Regression testing. Can you execute all test case again or important test case again after fixing the bug.
    if i am wrong please correct me.

    Hi Friend,

    You don't need to run all the test cases again(Retest), All you need to do is identify the cases that would have affected the fixed defect and do verify the selected cases alone.After that, if you want you can do a rough adhoc kind of testing.

    note:
    Few ppl are executing the entire cases, but if the no. of cases are too high then its hectic.


    Regards,
    Godwin


  3. #3
    Expert Member
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    Apr 2008
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    1,859

    Re: What exactly Regression testing?

    Quote Originally Posted by bhushanbhangale View Post
    Hi friends,

    Please any one tell me what is exactly Regression testing. Can you execute all test case again or important test case again after fixing the bug.
    if i am wrong please correct me.
    Hi friend,

    You have three modules A,B,C where A and B is already existing module but C is newly created module. You need to check after integrating the new module C the existing module A and B works fine.

    Before testing module C you should know which part of A and B is likely to be affected by the module C then you should cover all test cases which is likely to fail.

    Thanks,
    Deepa

    Arise Awake And Stop Not Till The Goal Is Reached

  4. #4
    Junior Member
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    Apr 2008
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    13

    Re: What exactly Regression testing?

    Regression testing is basically aimed at "Testing whether a newly added functionality is effecting the older functinality or not". So, when a new module is integrated with the existing modules, regression test is run to check for the performance of the integrated system on the whole.


  5. #5
    Contributing Member
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    Sep 2010
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    32

    Re: What exactly Regression testing?

    Regression testing is any type of software testing that seeks to uncover software errors by partially retesting a modified program. The intent of regression testing is to provide a general assurance that no additional errors were introduced in the process of fixing other problems.


  6. #6
    Contributing Member
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    Re: What exactly Regression testing?

    When any changes or any environment or configuration changes happen to the application then we perform regression testing. This is where we execute all the existing test-cases to make sure that the corrected changes have not introduce any other bug to the system behavior.

    Some strategies and factors to consider during this process include the following:

    • Test fixed bugs promptly. The programmer might have handled the symptoms but not have gotten to the underlying cause.
    • Watch for side effects of fixes. The bug itself might be fixed but the fix might create other bugs.
    • Write a regression test for each bug fixed.
    • If two or more tests are similar, determine which is less effective and get rid of it.
    • Identify tests that the program consistently passes and archive them.
    • Focus on functional issues, not those related to design.
    • Make changes (small and large) to data and find any resulting corruption.
    • Trace the effects of the changes on program memory.



  7. #7

    Re: What exactly Regression testing?

    Regression testing is the type of testing in which we test already tested functionality again and again
    this will be seen in two scenarios i.e, is
    1) when ever test engineers raise some defects the developers is going to rectify and send once again to test engineer then that time we will test weather the developers are really rectified or not and we test the rectified and also while modifying the developers may modify the previous one so we will test the modified and also entirely module we will test once again.
    2)when ever some new features added to the application,next build is released to testing department then the test engineers will check the related features of new features which is already tested once again .


  8. #8

    Re: What exactly Regression testing?

    hi i am siva krishna Raggidi me working as a software trainee if any openings on testing please inform me sivakrishna1987@gmail.com


  9. #9
    Junior Member
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    May 2013
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    2

    Re: What exactly Regression testing?

    Let us say you took your car to the mechanic for your car brakes to be fixed,and once he has finished fixing the brakes you decided to take the car for a test,while testing the car you decide to check your clutch,and you found out that the repair done to the brakes has affected the clutch.
    So you see,regression is all about checking existing functionality of the app in other to see if fixes have not destroyed anything,or have not made the app regress.


  10. #10
    Junior Member
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    Mar 2013
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    Re: What exactly Regression testing?

    Regression testing is a process of testing the application again whether the fixed bug is impact the other modules or not


  11. #11
    Expert Member
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    Re: What exactly Regression testing?

    What is Regression Testing?

    If a piece of Software is modified for any reason testing needs to be done to ensure that it works as specified and that it has not negatively impacted any functionality that it offered previously. This is known as Regression Testing.

    Regression Testing attempts to verify:

    - That the application works as specified even after the changes/additions/modification were made to it

    - The original functionality continues to work as specified even after changes/additions/modification to the software application

    - The changes/additions/modification to the software application have not introduced any new bugs

    What is Regression Testing?


  12. #12
    Junior Member
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    Re: What exactly Regression testing?

    Nice Explanation Suji. Nice to share this


  13. #13
    Junior Member
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    Re: What exactly Regression testing?

    Regression Testing
    a type of testing in which one will test the already tested functionalities again and again.

    Usually do it in two scenarios:

    1. Whenever the testers find some defects/bugs send it to the Development team, after rectification, developers will releases the next build. Testers will test the defect functionality as well as the related functionalities.

    2. Whenever new features are incorporated or added, next build is released to the testing team then the testers will once again test all the related features of those new features. In order to check whether they are working same as previous or not.

    Note:
    i) Testing the new feature for the first time is known as testing but not Regression testing.
    ii) Regression test starts from 2nd build and continues up to the last build.

    Last edited by shammu; 11-12-2013 at 08:18 AM.

  14. #14

    Re: What exactly Regression testing?

    When any changes are done to the software it is possible that other areas within the application can be affected by this change.This testing is to identify any new bugs which is introduced accidentally by the changes in the application.


  15. #15
    Junior Member
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    Oct 2016
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    2

    Re: What exactly Regression testing?

    Quote Originally Posted by muthu_qpt View Post
    Regression testing is a process of testing the application again whether the fixed bug is impact the other modules or not
    YES! for QA Test engineer, this answer is CORRECT!


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