A Comparison of Retesting and Regression Testing

The goal of every programmer is to write an error-free program. Fortunately, Software Testing can help enhance this process. While there are various types of testing, the biggest scuffle is between retesting and regression testing. Both of these sound similar and have similar functionalities, yet they have some differences as well.

So let's take a closer look at the differences between retesting and regression testing!

Retesting vs Regression Testing

1. Basic Terminology

How does regression testing work? A regression test looks at the software application, particularly when changes are made to the code. Tests such as these help determine whether the changes adversely affect the code.

On the other hand, the name “retesting” says it all! Once the tester finds a defect and fixes it, they must confirm whether it is wholly eliminated obviously with the help of retesting.

2. Types

Among the types of retesting, there are two: automated and manual. In contrast to functional testing, regression testing involves manual testing, unit regression testing, load/stress testing, integration testing, and automation for regression testing.

3. Advantages

Regression Testing

• It thoroughly checks whether the latest software versions have any bugs or not.
• Analyses whether all functions and features are stable.
• Check on the changes in the design.
• Keeps a tab on updating of databases and ensures that the data entered by the users are stored safely.
• Ensures that the website looks good on all types of devices.

Retesting

• It ensures that all the bugs are fixed, and the application is working aptly.
• It takes meager time as the issue is limited to a specific part of the program.
• Once the retesting is done, the bug is closed officially.
• Retesting plays a pivotal role in retaining the quality of the code.

4. Disadvantages

Retesting in Software Testing

Every time for verification, it needs a new build.

Test cases of retesting can be acquired only while testing and not before that. It can take ample time and extra effort because of the repeated execution of failed tests. The test cases cannot be automated, thus becoming tedious. Regression testing in software testing Regression testing, if done manually, becomes a tedious task. It takes away immense human efforts and time. Regression testing has to be done in every minute code, and one has to stay very attentive while undertaking it. It is because a tiny bug can lead to issues in the software. When the timeliness is constricted, achieving maximum test coverage with limited test cases becomes tricky. The purpose has to be precise while undertaking regression testing. If the testing team fails to acknowledge the goal, they might implement wrong steps leading to problems. 5. When is it performed? In the event of added functionality, a change in the environment, or performance issues, regression testing is necessary. Software is retested before regression testing is carried out after fixing a defect. This special procedure is carried out when a defect changes its status to "awaiting retest." We believe that you now have a solid understanding of regression testing in software testing and retesting as well! The benefits and drawbacks of both are clear. Choosing a career path in these fields, however, requires absolute knowledge, and that is where software testing certification comes in! Do you want to know where you can take this course and what it entails? Then read on!