A Complete Guide to Automated Regression Testing

Automated regression testing is fundamental to software development. Its goal impacts the software’s quality or dependability. Technology is likewise advancing, and software programmes are becoming more complicated as a result.

For this level of complexity, automated regression testing is required. It entails the use of one-of-a-kind tools and scripts to automate the carrying out of test cases. By automating repetitive, time-consuming operations, incredible levels of productivity can be achieved.

Welcome to yet another blog in which we will provide you with all of the knowledge you require about automation testing. Its relevance shall be addressed. We’d also go over the differences between automation and manual testing, among other things. So, let’s get started.

What exactly is the importance of automated regression testing?

The speed and effectiveness

When compared to manual regression tests, automated tests are usually much faster. As a result, they could repeat through many test scenarios quickly and save a lot of time.


Because automated tests complete the same processes each time they are run, any problems related to defects or software faults are eliminated through automation regression testing.

Early discovery of bugs

When bugs and issues are introduced, automated regression testing can help detect them. As a result, developers may immediately rectify errors. As a result, the debugging method is simplified.


Tracking and fixing faults in the late stages of development is greatly more expensive than addressing this issue early on. Furthermore, automated regression testing helps in the early detection of issues. As a result, it saves money in the long run.

Code change confidence

Developers can be confident in making changes to the codebase because automated tests are in place to immediately discover errors. This acts as a motivator for regular code upgrades and enhancements.

Regression reduction

These tests ensure that the new code modifications do not interfere with existing functionalities in an unanticipated way. This acts as a safeguard against software regression.

Productivity gains

By automating repetitive testing activities, it allows developers to focus on more complicated and innovative initiatives. As a result, productivity rises.

We’ll now look at the fundamental differences between automation and manual testing.

Important differences between manual and automated regression testing

Other components included in standard practices that reveal if the software functions well or not include automated testing and manual verification of functioning capacity.

As a result, the tests are carried out by computer programmes, as shown in automated testing. It’s essentially having a fast robot that can carry out orders and test software quickly. This is useful for huge projects with a lot of things to test. It is also useful for retesting.

Manual testing, on the other hand, involves people testing the software step by step. The only difference is that in this scenario, it works similarly to how you would use a phone app. It is useful for manual testing since testers may inspect each component of the software. This is especially true in the early stages of software development, when changes are frequent.

Testers might discover a variety of issues, including how easy the software is to use or whether it “looks” right. Sometimes testers employ a combination of the two, although both are necessary for testing. It assures that the software is of high quality and free of flaws.

What exactly is automated regression testing?

In today’s data-driven environment, we can confidently state that automated regression testing is vital in software development. As a result, here’s how regression testing works.

Creation of tests

Testers generate a list of particular activities to verify various aspects of the programme. Furthermore, these are the duties that the automated tool will carry out.

Writing scripts

Scripts, which are sets of instructions in a programming language, are written by testers or developers. Furthermore, these scripts instruct the testing tool on what steps to do during the tests.

Execution of tests

The scripts are executed by the automated testing programme. As a result, it simulates user interactions with software. It clicks buttons, enters data, and tests to see if the programme is responding correctly.


The tool analyses actual results to projected results. A mismatch indicates that there is an issue with the software.

Problem reporting

When the tool detects problems, it creates reports that explain what went wrong. These reports are also analysed by testers and developers to better understand the issues.

Bug correction

Developers correct the issues found in the reports. They also modify the code to address concerns discovered during testing.

Regression Testing

The automatic tests are rerun whenever the programme is modified. This also guarantees that future changes do not damage current features, hence preserving the software’s stability.

Isn’t it true that you need the necessary instruments to complete the procedure successfully? So, what exactly are these tools? We’ll look at them in the following part.

What tools are used for automated regression testing?

It is critical for software testing teams to select the appropriate tools for automated regression testing. So, here are some regularly used tools for this purpose


Selenium is a web browser simulator that interacts with web applications. It can click buttons, fill out forms, and make sure web pages function properly.


Jenkins helps with automation, which leads to testing. The ability to have it automatically perform tests while testing any changes made to the software. As a result, it assures that nothing breaks.


Appium, like Selenium, is used for mobile application testing. The tests could entail the usage of various devices, such as tablets and cellphones.


It is even possible for testers to create tests in simple English using a programme called Cucumber. It may also help teams that want to understand the tests but are unfamiliar with complex programming languages.


JUnit is a well-known tool for testing Java-based applications. It also aids developers in the design and execution of tests for Java code functionality.


TestNG is yet another Java app testing tool. It allows testers to run several types of tests, such as unit tests and integration tests, among others.


Postman is a tool for testing APIs. It assists testers in making API calls to assess their response loads.

We do not end there. Here, we also give some best practices that you can follow to make it more productive. So, let’s see what happens.

How can you secure the success of automated regression testing?

The following are some of the best and most wonderful approaches for making regression testing a simple, goal-oriented procedure for everyone.

Specific test goals

To begin, outline the needs and expectations for your test findings. Finally, it should be exact about the features or specificity of an automated test case that should be included.

Error correction

When an error occurs, the test script should produce clear and actionable error signals. As a result, it is easier to diagnose and resolve problems. You may also use service testing automation to make your testing process more efficient.

Keep track of test cases

Organise and maintain your test cases. As software develops, it should be evaluated and updated on a regular basis. It is also critical to have test cases that are straightforward to understand.

Version management

Track changes to your test scripts using version control technologies like Git. This is how they cope with several test versions and collaborate with others.

Managing data

Differentiate between test data and test scripts. When data is stored in external databases or files, it is possible to make changes to the data without having to rewrite the test scripts. As a result, it promotes flexibility and reusability.


In the final section of our tutorial to Automated Regression Testing, we looked at how this practice improves software stability. Are you ready to go deeper into this important component of automation testing? Enrol in our complete automation software testing course and classes to get the knowledge and skills required for efficient automated regression testing. Improve your testing abilities and secure the dependability of your programme. Enrol today for a testing adventure that is future-proof.

Guest article written by: I’m Shashidhara, a passionate tech blogger. I enjoy writing technology blogs and developing educational content for Automation Testing Courses and the Software Testing Industry. I’ve always believed in smart learning techniques that help readers understand things, and one of them is writing. I always choose stories that will assist IT enthusiasts in their professional growth.

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