Regression Testing trong Scrum

Tram Ho

As we all know, Regression Testing is considered the most common type of test and most testers are aware of this type of test. This type of testing is important and nearly indispensable in testing because we cannot (or find it difficult to) predict whether even the smallest change can affect other modules. Therefore, regression is considered to be the safest solution. Through this article we will review the knowledge of Regression Testing and learn about the combination of Regression Testing in Scrum.

1. What is Regression Testing?

Regression Testing (also called regression testing) is a form of software testing to verify that any new features or requirements for changes or bug fixes do not create any detrimental impact on the system. current affairs and no new errors.

2. Why do you need Regression Testing? And why is Regression Testing important in the Scrum project?

2.1. Why do you need Regression Testing?

It is often difficult to know whether even the slightest change could affect other modules. So we need to perform Regression Testing to:

  • To ensure the continuous development of the application or software without any errors
  • To discover all software regressions effectively and easily.

2.2. Why is Regression Testing important in the Scrum project?

  • With the software development method with traditional models such as Waterfall, the testing phase will be conducted separately and only after the development stage is completed.
  • For an Agile model development project, the testing phase is conducted simultaneously with development and coding. The project is developed in cycles and constantly has new features, features that change as required … in every sprint.

Therefore, we need to test whether changes including bug fixes, performance bug fixes, new function additions, or request changes create new bugs that affect software performance and functionality. already checked available; It is necessary to ensure that existing code in the system will not be affected or negatively impacted on it, and not related functions.

3. When do Regression Testing be conducted?

Regression testing is required when there is a:

  • Changes in the request and the code are modified as required
  • New features added to the software
  • Fixes
  • Troubleshoot performance

4. How to perform Regression Testing.

Regression testing can be performed by the following techniques:

1. Run all current tests

This means all pre-written and run tests should be re-run after release. However, especially if all is manual, the tester will have a huge workload. Perhaps you do not have too much time and resources to waste. The fact that 100% overall product testing cannot be performed adds to this.

2. Run the test with high risk

In this method, you should consider the tests that bring the highest value to your business users. Most such tests are ones that must be performed with the most frequent functions and activities of business users. It is no exaggeration to note that with product changes, the main procedures may also differ. Allocate 30-40% of the total regression time for high-risk tests depending on other things to be tested.

3. Check for high defect features

You can also check areas with high product defects, usually very complex areas. Usually complex is the feature that includes sophisticated calculations or integration with other applications. Functions that have many defects in the past also come in this set.

4. Testing exploration

It is about building test case design along with implementation. During the process of building and executing these tests, you may discover problems in the application that will promote your later tests.

5. Check automation

You can cut test numbers to be run manually by automating them. For quick performance, use automated tools that help reduce the time it takes to run the test. However, make sure you take the time to develop automation scripts. Also note that in the event of an environmental change, they will need to update accordingly

5. Challenges faced by Agile team in Regression Testing.

The following are the key test issues to perform regression testing:

  • With successive regressions, the test suites became quite large. Due to time and budget constraints, the entire regression test cannot be executed
  • Minimizing the test set while achieving maximum test coverage remains a challenge
  • Determining the frequency of Regression Test, that is, after each revision or update of the build or after a series of bug fixes, is a challenge.

Regression testing is essential in an Agile environment. However, to get it right, testers must focus on the effective bot and the speed of the test cases. Without a solid strategy, many problems and challenges can occur over the course of an entire project.


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Source : Viblo