A crucial step in the software testing process is regression testing. It ensures that any software application modifications have no adverse effects on the functionality or features already in place. It is a lengthy and difficult process, particularly for newcomers who might not know where to begin or what tests to run. Regression testing checklists are useful in situations like these. A list can assist in guaranteeing that all necessary test cases are included, and none are missed. 

The key elements of a regression testing checklist for beginners, such as how to get ready for regression testing, what to test, best practices, and more, will be covered in this article.

What Is Regression Testing?

Regression testing is a kind of software testing done to ensure that modifications made to a software application or program haven’t negatively impacted any of its current functionalities or features. It is an essential step in software testing since even little modifications to the software application might have unpredictable results and affect the system’s overall performance.

Regression testing is the process of rerunning previously completed test cases on an altered or updated software application to ensure no new flaws were created due to the modifications made. The objective is to guarantee that the software application continues to be fully functional and that all of its features and functionalities function as intended.

LambdaTest is an incredibly useful tool for conducting regression testing. It allows you to test your web and mobile applications on various browsers and devices, ensuring your software performs as expected across all platforms. Regression testing is a crucial part of the software development process as it helps to identify and fix any issues or defects that may have been introduced due to changes or updates in the software. 

LambdaTest offers a variety of automation testing tools, such as Selenium and Appium, which significantly reduce the time and effort required for testing. With real-time testing, you can quickly detect and resolve any issues or defects during the testing process. Moreover, multiple team members can collaborate on testing with LambdaTest, making sharing test cases, results, and feedback with stakeholders easy. 

LambdaTest integrates with many popular tools like Jira, GitHub, Slack, etc., enabling you to incorporate regression testing into your existing development and testing workflows. 

Additionally, LambdaTest provides comprehensive test reporting, making it easy to track and analyze your testing results while ensuring that your software meets the highest quality standards. 

Regression Testing Checklist                                                                                                                                                                                                             

Regression testing is an important process in software development that aims to identify defects that may have been introduced after a software modification or upgrade. The main purpose of regression testing is to ensure that changes made to an existing software application should not adversely impact the software’s functionality. To achieve this, software testers used a regression testing checklist to ensure no important test cases were overlooked.

The regression testing checklist is an important aspect used in software development to ensure that any changes made to the software application do not affect the software’s functionality. It also helps the software application to remain stable and reliable even after multiple changes to the code. The main purpose of regression testing is to identify that the changes made to the software do not impact the system’s behavior. 

Things to Consider for the Regression Checklist 

When it comes to the regression testing checklist, should include a list of items that need to be tested each time a new release is made or a change is made to the code of the software system. These items can also vary depending on the system’s complexity and the extent of the changes made. Here are some common things that should be included in the regression testing checklist: 

  • Functionality

This includes all the previously tested software application functions, which might be affected by the changes. In this step, these functions should be tested again to ensure they still work as expected.

  • Integration

This includes all the modules and components of the software application that may be affected by the changes. These modules and components should be tested to ensure they work together seamlessly.

  • Performance 

This step includes the software system’s performance before and after the changes. The performance should be analyzed, ensuring the changes do not negatively impact it.

Checklist to Follow During Regression Testing

As you know, regression testing is an essential step in the software development process that ensures changes introduced in the software application do not cause any unintentional effects on the existing functionality. In the process of re-executing the test cases that were previously executed to check if the newly implemented features have not adversely affected the application’s working, the testing team checks the ensure that the software behaves consistently and accurately under various test conditions. It provides efficient and accurate regression testing, and a well-planned checklist is necessary. There are some essential steps to consider when creating a regression testing checklist:

  • Define the scope of regression testing.

Before proceeding with regression testing, the first step is essential to determine the scope for testing. Areas of the software will be tested and at what levels. You need to the entire software application or components/sections that will undergo regression testing and ensure nothing.

  • Determine the test environment.

It is important to consider the test environment when carrying out regression testing The ensure that the testing environment mimics the production environment where the software will be deployed. It will ensure accurate and high-quality software delivery.

  • Identify Test Cases to be re-executed

Choose the right sets of test cases that will be re-executed for regression testing. Select functional test cases, integration test cases, and security test cases. This includes both positive and negative cases.

  • Prioritize Test Cases 

When conducting regression testing, the first step is to assign priority to test cases based on the criticality of features and potential impact on software application functionality. By prioritizing test cases in this manner, the testing team can ensure that the areas of the highest importance receive the appropriate testing attention. The approach can improve efficiency, ultimately leading to higher-quality software products.

  • Validate new changes 

The first step is re-executed, and you need to prioritize this. It is important to identify areas in the code that have been changed and need to update the corresponding test cases accordingly.

  • Analyze the security

When you test the software application, it is important to ensure its security. It will help you analyze that the application is not vulnerable to attacks or exploitation. 

  • Ensure Automation testing 

Regression testing often poses a significant time investment, which has led to the emergence of automated solutions to make this challenge. The implementation of automated regression testing not only ensures expedited turn-around times but also facilitates efficient testing practices. It is particularly recommended for systems that experience frequent modifications or updates, as it can significantly improve overall testing efficacy.

  • Check for Data Management 

Efficient management of test data is imperative in regression testing as it significantly impacts the accuracy and reliability of the testing outcomes. Therefore, handling the test data proficiently is vital, ensuring that it encompasses all necessary aspects of the software application under test.

  • Record and Track Issues 

During the testing process, it is crucial to identify any known issues and promptly report them to the developers to address. This involves utilizing issue tracking, where identified problems are communicated to relevant stakeholders and developers for further analysis and resolution planning.

Ensuring that all software features are thoroughly tested and meet specified requirements, as well as not being affected by new changes or enhancements, is the main objective of regression testing. This step is critical in the software development lifecycle. A well-planned regression testing checklist should be employed to achieve error-free and precise testing while minimizing errors and maximizing productivity. Consistent regression testing is essential to maintain the quality of your software, resulting in increased overall customer satisfaction.

Best Practices for Regression Testing

Regression testing is a crucial part of the software testing process, and following best practices can help ensure its success. Below are some detailed best practices for regression testing:

  1. Set test priorities

Tests should be prioritized according to their importance, value to the firm, and frequency of use. This will allow you to focus on the essential parts of the software application while avoiding wasting time on unnecessary ones.

  1. Test early and often.

Regression testing should be carried out very early in the software development lifecycle and often thereafter. 

  1. Test in a production-like environment

Test in a setting similar to a production environment to ensure the software application responds as expected in the real world. This will assist you in locating any potential problems caused by variations between the testing and production settings.

  1. Maintain current test environments and data.

Ascertain that test environments and data are kept current with the most recent software application updates. This will ensure that tests are run using the most recent data and that problems are swiftly found and fixed.

  1. Include stakeholders

Include stakeholders in the regression testing process, including programmers, business analysts, and project managers. 


Regression testing is a crucial phase in the software testing process that ensures that any changes made to the software application do not negatively impact its present functionality. A thorough regression test suite, prioritizing tests, automating tests when practical, using version control, frequently testing, using a defect tracking system, testing in a setting similar to production, maintaining test data and environments, involving stakeholders, and continuously improving the testing process are all necessary for performing regression testing effectively.

Regression testing beginners can ensure that their testing efforts are thorough and efficient and contribute to the overall success of the software development project by adhering to the best practices listed in this checklist. Regression testing might take a lot of time, but ensuring the program is reliable and satisfies end users’ needs is necessary. Regression testing must be performed and integrated into the software development lifecycle with sufficient time and resources allocated.

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