What is the regression testing definition? What are the advantages of regression testing? How to perform regression tests? What is the basic difference between regression testing and retesting? Don’t let these questions bother you. This blog will assist you in gaining knowledge about regression testing.
Try to understand by example. Suppose you created a small water reminder app. The app will notify the user to drink water. For every two hours it reminds them to do so. You tested the application after building it, and it functions well. You want to add fitness monitoring to the app in the next round of development. This time, after testing the fitness monitoring functionality, you also test the first functionality – water reminder. We call this as regression testing.
Testing is sometimes neglected. Also, obtaining less importance than development. The importance of it is equal to or greater than that of development. It is because a feature-rich app that is unstable may cost business dollars and member base erosion. As a result, maintaining the top standard of software is essential. The Quality assurance team does regression testing. To determine if the software is working as intended upon any new feature enhancement or major update.
In short, in order to verify that the app’s capabilities are operating as intended, testing entails running previously passed test scenarios again with the updated version. Additionally, It is a set of checks rather than a unique test that is run each time something new functionality is added.
There are various advantages of regression testing. It guarantees whether any code modification has negative effects on other functionalities or not. It ensures that problems that have resolved should not come back. Also, it acts as a risk-reduction tactic when testing. Thus, it is simple to learn, comprehend, and analyze. On the other hand, there are some points to keep in mind. That includes regression testing that takes time and we need patience. Each time a code line changes, you have to perform the testing. You need to write difficult test cases to perform the test. Therefore, you must consider both perspectives before choosing.
There are 4 testing methods performed most commonly. Choice of Regression Testing, Prioritizing test cases, Retesting all and Hybrid. The hybrid approach is the most successful of all these. This really is due to the fact that you run the necessary test instances dependent on whether you intend to initially do regression test selection or test case prioritisation, rather than picking all at once. As a result, it saves a great amount of time and energy.
There are various challenges we can face during regression testing. The test suite grows pretty extensive when regression tests we perform repeatedly. The whole kit may not run due to time and funds restrictions. It might be difficult to determine how frequently regression tests should run, such as after each modification, each build update, or after a large number of problem fixes. Getting maximal test coverage while minimising the test suite is still difficult.
On the other hand, retesting focuses primarily on test scenarios that failed. No test case automation is possible. We do it to fix particular flaws. It is impossible to get test cases before the testing procedure has begun. It determines if a repair results in a unique problem in the software. Retesting is carried out first since it has a greater priority than regression testing. It only looks for errors that were present at the beginning of the testing procedure.
In short, retesting refers to running tests once more after fixing the code base or if a test case fails during the final implementation. Whereas, regression testing refers to making sure that an update or modification is not impacting the functioning of the current application.
Testing is essential if you wish to create reliable, high-quality products that encourage user loyalty. Taking such possibilities into account, we have given you a complete description of regression testing and have covered all the questions in this blog.
Mevil Bhojani is the Co- Founder of Alian Software. A technical expert helping more than 100+ Fortune companies in developing cutting-edge custom software using the leading technologies by providing talented and skilled resources.