Tuesday, January 31

Types, tools, various techniques for regression testing

Regression Testing Tools

Automated Regression Testing is a kind of testing that allows us to automate most of our testing work. On a fresh build, we performed all of the previously run test cases.

This indicates that we have a collection of test cases accessible and that manually executing these test cases is time-consuming. Because we know what to anticipate, automating these test cases saves time and is an effective regression test strategy. The amount of automation required is determined by the number of test cases that will remain relevant throughout time.

If test cases change over time, the application’s scope expands, then regression method automation becomes a waste of time.

The majority of regression testing tools are record and playback in nature. You may record test cases by traversing through the AUT (application under test) and confirming whether or not the anticipated outcomes are there.

Tools to Consider

1) Avo Assure

Avo Assure is a no-code and flexible test automation solution that simplifies and accelerates regression testing.

Because of its cross-platform compatibility, you may test on the web, mobile, desktop, Mainframe, ERPs, and related emulators, among other platforms. You can conduct end-to-end regression tests with Avo Assure without writing a single line of code, ensuring fast, high-quality delivery.

Avo Assure assists you in:

  • Run end-to-end regression tests frequently to achieve >90% test automation coverage.
  • With a single click, you can see your whole testing structure. The Mindmaps tool allows you to create test plans and test cases.
  • Use more than 1500 keywords, including more than 100 SAP-specific keywords, to deliver applications quicker.
  • Use the Smart Scheduling and Execution functionality to run many scenarios at the same time.
  • Integrate with Jira, Sauce Labs, ALM, TFS, Jenkins, and QTest, among other SDLC and Continuous Integration technologies.
  • Use easy-to-read images and videos of test case execution to analyze reports quickly.
  • Make your apps accessible by enabling accessibility testing.

2) TimeShiftX

TimeShiftX provides businesses a significant edge by decreasing test cycles, meeting deadlines, and lowering resource requirements, resulting in a faster release cycle with excellent software dependability.

What Level of Regression Is Necessary?

This is determined by the extent of the newly introduced functionality.

If the scope of a repair or feature is too broad, the application area that will be impacted is as broad. Therefore testing should be done correctly, including all application test cases. However, this may be successfully determined when the tester receives feedback from a developer regarding the scope, type, and quantity of change.

Since they are repeating tests, test cases may be automated such that a single set of test cases can be run on a new build with ease.

Regression test cases must be carefully chosen such that the greatest functionality is covered with the fewest possible test cases. For newly introduced functionality, these test cases will need to be improved regularly.

When the application scope is significant and there are frequent increments or changes to the system, it becomes very tough. In such circumstances, specific tests must be run to save money and time on testing. These particular test cases were chosen based on the system’s improvements and the areas that may have the most significant impact.

Techniques for Regression Testing

The numerous approaches are listed below.

Regression Testing Techniques  
Types of Regression Testing

1) Retest Everything

As the name implies, the whole test suite is re-run to guarantee that no issues have arisen due to a change in the code. This approach is more costly than the others since it involves more time and money.

2) Choosing a Regression Test

Test cases from the test suite are chosen to be re-executed in this technique. It’s not like the whole suite has been re-run. The test cases are determined based on the changes in the module’s code.

There are two types of test cases: reusable test cases and obsolete test cases. Reusable test cases may be reused in subsequent regression cycles, but outdated test cases will not be utilized in subsequent regression cycles.

3) Prioritization of Test Cases

High-priority test cases are conducted first, followed by medium- and low-priority test cases. The importance of a test case is determined by its criticality and influence on the Product and the functionality of the Product that is utilized most often.

4) Hybrid

Regression Test Selection and Test Case Prioritization are combined in the hybrid approach. Select just the test cases that are re-executed based on their priority rather than the whole test suite.

What Should You Look For When Choosing A Regression Test Suite?

The majority of issues discovered in the production environment result from modifications made or bugs corrected in the eleventh hour, i.e., adjustments made afterward. The problem repair at the end of the process may cause new difficulties or defects in the Product. As a result, regression testing is critical before launching a product.

The following is a set of test scenarios that may be utilized in this test:

  • Functionalities that are employed regularly.
  • Test cases for the module in which the modifications were done.
  • Test instances that are difficult.
  • Test cases for the integration of all critical components.
  • Test cases for the Product’s basic functionality or features.
  • Test cases from Priority 1 and Priority 2 should be included.
  • For the same, test cases of regularly failed or current testing faults were discovered.

Regression in Agile

Agile is a flexible technique that is iterative and incremental. The sprint iteration, which lasts two to four weeks, is used to build the Product. There are a lot of iterations in agile; thus, testing is essential since new features or code changes are done in iterations.

The regression test suite should be established at the start of the project and updated with each sprint.

Regression checks are divided into two groups in Agile:

  • Regression of Sprint Levels
  • Regression from beginning to end

Regression in Sprint Levels

Sprint Level Regression is used to roll back new functionality or additions from the previous sprint. The test cases in the test suite are chosen based on the newly introduced functionality or enhancements.

Regression from beginning to end

End-to-End Regression comprises all test cases that must be re-run to test the whole Product end-to-end, including all of the Product’s fundamental capabilities.

Agile has short sprints, and as time goes on, it becomes more important to automate the test suite. Test cases are rerun, and this, too, must be done in a short time. Automating test cases cuts down on execution time and defect recurrence.


The benefits of the regression test are listed below.

  • It enhances the Product’s quality.
  • This guarantees that any bug patches or additions made do not affect the Product’s current functioning.
  • This testing may be done with the help of automation technologies.
  • This will guarantee that problems that have previously been resolved do not recur.


Although there are several benefits, there are also some drawbacks. They are as follows:

  • This must be done even if the code change is minor since even little code changes might cause problems with current functionality.
  • If the project does not employ automation for this testing, executing the test cases again and over will be a time-consuming and tiresome effort.

For more information regarding software testing such as Agile testing, you can also check our management section on our website by clicking here.

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