SAP Regression Testing | What it is & Why it Matters?

How to Build an Effective Regression Test Suite 

Regression testing is a software testing process that involves verifying the functionalities of an application or system after modifications have been made that could impact its performance. Unit testing is a software testing process that involves thoroughly testing individual functions or modules of a program using specialized tools. Unit testing helps testers to catch bugs early in the development process when they can be addressed more efficiently. This blog is about Regression Test vs Unit Test.



We know testing has become a necessary part of the software development life cycle. With the rise of Agile and DevOps methodologies, developers must deliver software faster than ever without sacrificing quality. We must do testing more efficiently and with higher precision. Regression testing and unit testing are 2 types of testing that we talk about, in this blog. We&#8217;ll talk about their benefits, main differences, and other important stuff to help you tell them apart easily.



<div class="wp-block-image"><figure class="aligncenter is-resized"><img loading="lazy" src="https://images.storychief.com/account_36412/image_1dc38f99c0bac33ec8e6dcf48ef1632a_2000.jpeg" alt="Regression Test vs Unit Test" width="600" height="500" /></figure></div>



<div id="toc_container" class="no_bullets">Table Of Contents<ul class="toc_list"><li><a href="#What_is_Regression_Testing_vs_What_is_Unit_Testing">1 What is Regression Testing vs. What is Unit Testing?</a><ul><li><a href="#What_is_Unit_Testing">1.1 What is Unit Testing?</a></li><li><a href="#What_is_Regression_Testing">1.2 What is Regression Testing?</a></li></ul></li><li><a href="#When_and_Why_Do_You_Need_Both_Testing_Types">2 When and Why Do You Need Both Testing Types?</a><ul><li><a href="#Unit_tests_vs_Regression_tests_the_differences">2.1 Unit tests vs. Regression tests – the differences</a></li></ul></li><li><a href="#Tools_and_Techniques_for_Regression_and_Unit_Testing">3 Tools and Techniques for Regression and Unit Testing</a></li><li><a href="#Summary">4 Summary</a></li><li><a href="#Frequently_Asked_Questions">5 Frequently Asked Questions</a><ul><li><a href="#Are_regression_tests_unit_tests">5.1 Are regression tests unit tests?</a></li><li><a href="#Is_regression_testing_black_box_testing">5.2 Is regression testing black box testing?</a></li><li><a href="#Which_testing_comes_under_unit_testing">5.3 Which testing comes under unit testing?</a></li></ul></li></ul></div>
<h2 id="h-what-is-regression-testing-vs-what-is-unit-testing">What is Regression Testing vs. What is Unit Testing?</h2>



These two types of testing have different objectives. Also, they require different skills, tools, and techniques.



<h3 id="h-what-is-unit-testing">What is Unit Testing?</h3>



Unit testing isn&#8217;t anything new. It&#8217;s been around since the early days of programming, you know. Testers use unit testing to test individual pieces of code or &#8220;units&#8221; and ensure they function as expected. This approach helps catch errors or bugs early in development, making fixing them easier and less costly.One example of unit testing is testing a function that calculates the sum of two numbers. The test would involve providing two numbers as input and verifying that the output is the correct sum of those numbers. For example, if the input numbers are 4 and 6, the output should be 10. This testing approach helps ensure that each unit works as intended and can be integrated into a larger system without issues.



<h3 id="h-what-is-regression-testing">What is Regression Testing?</h3>



<a href="https://testsigma.com/regression-testing" target="_blank" rel="noreferrer noopener">Regression testing</a> is a software testing process that involves verifying the functionalities of an application or system after modifications have been made that could potentially impact its performance. We do this to ensure that the modifications or updates have not broken any existing functionality and to confirm that there are no unexpected side effects.



You can conduct regression testing manually or through automation tools. Regression testing plays an essential role in the software development life cycle since developers continuously make new modifications to an application&#8217;s codebase.



For example, a web application has significantly updated its user interface. The testing team would need to verify that all previously functional features, like the home page, login page, cart, checkout, payment etc, still perform as expected and that the new user interface does not introduce any defects. By conducting thorough regression testing, software developers can ensure that their products continue to meet the high standards of quality and functionality that users expect.



<h2 id="h-when-and-why-do-you-need-both-testing-types">When and Why Do You Need Both Testing Types?</h2>



Regression Testing and Unit Testing are two important types of software testing. Regression testing is necessary when changes are made in the code base, which might affect other software parts. Unit Tests are essential because they help identify any issues with the functions individually before being integrated into the final product. Below are some reasons why you need regression testing and unit testing:



When do you need regression testing?



<ul><li>Regression testing is testing that makes sure changes or updates to a software system don&#8217;t cause any unintended effects or break anything that used to work.</li><li>You&#8217;ll generally want to do this testing whenever you make any changes, add new features, or bring in new data.</li></ul>



Why do you need unit testing types?



<ul><li>To identify any problems with specific code units at an early stage.</li><li>Help troubleshoot complicated systems by isolating individual components.</li><li>To make it easier to extend, modify, and refactor code over time without breaking anything.</li></ul>



<h3 id="h-unit-tests-vs-regression-tests-the-differences">Unit tests vs. Regression tests – the differences</h3>



Okay, let&#8217;s break it down! The below table gives you the major differences between these tests.



<figure class="wp-block-table"><table><tbody><tr><td>Unit Test</td><td>Regression Test</td></tr><tr><td>Unit tests are designed to test individual code units, typically at the function or method level.</td><td>Regression testing involves running a suite of tests to ensure that new code changes don&#8217;t adversely affect existing functionality in an application. Read here about &#8211;<a href="https://testsigma.com/blog/regression-test-suite/" target="_blank" rel="noreferrer noopener">Regression test suite</a></td></tr><tr><td>This is a type of white box testing</td><td>This is a type of black box testing</td></tr><tr><td>Testers usually execute them before integrating new code into the larger application.</td><td>Developers generally perform regression testing after integration or deployment.</td></tr><tr><td>This test targets the methods and functions.</td><td>This test targets the end-to-end workflows.</td></tr><tr><td>Run for every build.</td><td>Run every time changes are made</td></tr><tr><td>It can be fully automated.</td><td>It can be manual or automated.</td></tr></tbody></table></figure>



Both types of testing are important and work together to ensure our software is working properly.



<h2 id="h-tools-and-techniques-for-regression-and-unit-testing">Tools and Techniques for Regression and Unit Testing</h2>



To reduce the risk of introducing bugs and errors in your code, regression, and unit testing are two methods you should employ. After introducing new changes, regression testing ensures that previously working features still function correctly. On the other hand, unit testing focuses on verifying individual components of your code work as intended. Many great options offer robust functionality and capabilities when it comes to tools for these methods. Some of the top picks include:



For Unit Testing:



<ol><li>NUnit: an open-source unit-testing framework for .NET developers with built-in assertions, extensibility support, and parameterized tests.</li><li>JUnit: an open-source unit-testing framework for Java developers</li><li>JMockit-an open-source tool for Unit Testing with the collection of tools and API</li></ol>



For Regression Testing:



<ol><li>Testsigma: an NLP-based <a href="https://testsigma.com/automated-testing" target="_blank" rel="noreferrer noopener">automation testing</a> platform that lets you automate tests for web, mobile, desktop, and API from the same place. With Testsigma, automating and maintaining tests is as easy as writing sentences in English. Know more about Testsigma here: <a href="https://testsigma.com/" target="_blank" rel="noreferrer noopener">https://testsigma.com/</a> <button class="btn bg-primary cta-btn" style="margin: auto"><a href="https://testsigma.com/signup" target="_blank" rel="noopener noreferrer" style="color:#fff">Start automating your regression tests in minutes with Testsigma</a></button>
</li><li>Subject7: a cloud-native, codeless test automation platform that integrates all testing procedures in a unified platform.</li><li>Cerberus Testing: an open-source and low-code test automation platform. It supports Web, Mobile, API, Desktop, and Database testing.</li></ol>



These tools provide developers with powerful capabilities to automate their regression or unit tests more effectively while significantly improving the efficiency of their workflow.



<h2 id="h-summary">Summary</h2>



To summarize, regression and unit tests are essential in software testing to ensure quality and prevent errors. Understanding the differences between regression and unit tests is key to implementing an effective testing strategy that improves the overall quality of the software. Yet, using both types of testing in concurrence with each other will help ensure the code is thoroughly tested. If any issues are found, they will be resolved before they can cause problems for end-users.



<h2 id="h-frequently-asked-questions">Frequently Asked Questions</h2>



<h3 id="h-are-regression-tests-unit-tests">Are regression tests unit tests?</h3>



Regression and unit tests are different. Regression tests ensure that existing functionality works correctly after new changes have been done, whereas unit tests verify that individual units of code work properly in isolation. Unit testing is designed to catch bugs early in development, while regression testing is intended to catch issues introduced during later stages.



<h3 id="h-is-regression-testing-black-box-testing">Is regression testing black box testing?</h3>



Regression testing means re-executing the tests for features that could get impacted due to any new changes in the code. So it&#8217;s a Black-Box testing technique.



<h3 id="h-which-testing-comes-under-unit-testing">Which testing comes under unit testing?</h3>



Unit tests are very low-level and close to an application&#8217;s source. They test individual methods and functions of your software&#8217;s classes, components, or modules.

Regression Test vs. Unit Test Key Differences

Regression Test vs Unit Test: Key Differences

Salesforce Regression Testing Benefits and Best Practices

Salesforce Regression Testing: Benefits and Best Practices

Visual Regression Testing: Everything You Need to Know in 2023

Visual Regression Testing: Everything You Need to Know

As the world moves forward, it wants to progress, more efficiency, more speed, and the same is the case with the software development industry. Every software development organization wants to save time, effort, and money at every step possible. Software Testing being a major part of software development also needs more efficiency. Thus, comes automation.&nbsp; 



As regression testing is one of the most time-taking and repetitive activities where software testing is concerned &#8211; automating regression testing ensures a better-quality software at a lower cost and timely release. 



There are plenty of regression testing automation tools available in the market today. But more choice also means more confusion. Thus, it can become difficult for an organization to choose an ideal automated testing tool for performing regression testing. 



Here, we aim to help you figure out just that. The top 5 top features a regression testing automation tool must have today: 



1. Scriptless




Script-based automation where the tester needs to write long test scripts is slowly becoming the history now, as companies are moving towards scriptless regression automation testing tools. Scriptless automation tools save a lot of time that is usually spent on writing code for your regression testing. There are <a href="https://dzone.com/articles/scriptless-testing-is-not-just-record-and-playback" target="_blank" rel="noreferrer noopener" aria-label="multiple ways of scriptless test automation (opens in a new tab)">multiple ways of scriptless test automation </a>and the one which I found the easiest is <a href="https://testsigma.com/regression-testing/automated-regression-testing-tool" target="_blank" rel="noreferrer noopener" aria-label="automating tests in simple English (opens in a new tab)">automating tests in simple English</a>, where it seems as if you were just noting down the tests. I personally have used it and would like to recommend it for its ease of use. Scriptless regression testing tools will not only help you reduce the testing stress, but also improve the work efficiency significantly.



2. Ability to Identify Potential Failures Upfront



A regression testing automation tool should be capable of identifying the affected tests in your automated regression test suite. It helps you create regression test suites with the test cases that have a direct impact on the change in the software. 



3. Self Healing Test AutomationSelf-healing is an important feature that helps ensure that regression testing is being carried out without any friction. In Self-healing test automation, the AI detects abnormalities in the existing code and automatically fixes the changes made in the code to prevent test failures. &nbsp;If you have an agile development team, self-healing is a handy feature for you. This feature alone will help you save a significant amount of time and money.



4. Multiple Test Execution in Parallel



Parallel test executions help in making your testing faster and achieving a quicker turnaround in deployments. Multiple test executions in parallel help in reducing the feedback time significantly. It also helps the testers and developers to dedicate their time and resources on serious problems with cross-platform compatibility. 



5. Simplified Regression Report Generation



A regression testing automation tool must have a reporting functionality to help measure the success or failure of a particular test case and to track the complete details of the test cases including the number of test cases executed, status of each test case, test suite’s visual logs, defect priorities, and screenshot capturing.



An ideal tool not just provides a pass/fail reports, but it provides detailed reports complemented by screenshots, videos, error logs and actionable feedback to help the testers make effective and quick decisions for a quick resolution.



Selecting an appropriate automated testing tool for regression testing is crucial as the functionality and performance of the software are the basic elements for its success. 



There are only a few automation tools which comprise all the listed features above and Testsigma is one of them. It is a scriptless test automation tool for web, mobile, and web services regression testing to help you get started with the automated regression testing instantly. 



It uses AI to identify all the potential failures which help you avoid the manual checking of affected test cases which is both error-prone and time-consuming. 



Testsigma’s Artificial Intelligence is smart enough to locate the elements precisely even with the changes made in the attribute and automatically modify the change made in the source code to prevent the failure of the tests. This helps in reducing your maintenance efforts by 70 percent. 



Testsigma allows you to run thousands of regression tests in parallel on a vast range of cloud and local devices which reduces the feedback time to just a few minutes. 



Testsigma provides you with the comprehensive test reports with a drill-down approach to help you analyse the test results efficiently in quick time. You also get actionable feedback on the failed tests to help take quick action.



All in all, <a href="https://testsigma.com/regression-testing/automated-regression-testing-tool" target="_blank" rel="noreferrer noopener" aria-label="Testsigma, an ideal for automated regression testing (opens in a new tab)">Testsigma, an ideal for automated regression testing</a>, has all the essential elements required for automation and execution of your regression test cases. You can get started with the automated regression testing instantly with no coding language requirement. 



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Top 5 Must Have Features of Regression Testing Automation Tools

Top 5 Must-Have Features of Regression Testing Automation Tools

<a rel="noreferrer noopener" aria-label=" (opens in a new tab)" href="https://testsigma.com/regression-testing" target="_blank">Regression testing</a> is one of the most critical aspects of quality assurance. It helps developers to check for issues that are introduced by new additions to their codebase or due to a bug fix. 



The aim is to check all those pieces of code that could be impacted due to these changes. It goes without saying that adopting effective regression testing strategies can save development teams hundreds of hours of debugging. 



Before taking up the task of regression testing, the team needs to define the test framework that they plan to use. This framework should contain all those test cases that could have been impacted due to the changes. 



Moreover, the selection of appropriate test cases and prioritizing error-prone test cases could take up a lot of time and resources. Hence, automating regression testing is necessary to stay in bounds within the strict timelines.&nbsp; 



<a rel="noreferrer noopener" aria-label=" (opens in a new tab)" href="https://testsigma.com/regression-testing/automated-regression-testing-tool" target="_blank">Testsigma, a tool for automated regression testing</a>, provides a cloud-based test automation ecosystem which contains all the essential elements that would be required for automated regression testing. It is an ideal automated regression testing tool which suggests affected or relevant test cases after there is a feature enhancement or bug fix. 



It lets you run your regression tests automatically within a sprint. With Testsigma, you get the following features to improve your regression <a href="https://testsigma.com/blog/ux-testing-ux-lessons-learned-from-my-real-life-experiences-part-1/" target="_blank" rel="noopener">testing experience</a>. 



<ul class="list_style_disc"><li>Automates your regression tests using simple English.</li><li>AI creates regression test plans containing all the affected test cases.</li><li>It helps you to maintain or heal your regression tests automatically for any changes in UI elements.</li><li>Reduces your feedback time by executing multiple tests in parallel.</li><li>Provides continuous integration to run test cases after every new build.</li><li>Generates comprehensive reports to determine the release readiness.</li></ul>



Here are a bunch of factors that make it easier for you to perform regression testing using Testsigma.



1. <a href="https://support.testsigma.com/support/solutions/articles/32000028568-chapter-8-analyze-debug-failures" target="_blank" rel="noreferrer noopener" aria-label="Automatic determination of affected Test Cases&nbsp; (opens in a new tab)">Automatic determination of affected Test Cases&nbsp;</a>



Introducing new features to the code could unintentionally affect pieces of codes in different modules. This is largely due to the dependencies between the modules. Such regressions need to be resolved within the sprint to ensure that the bug doesn’t reach the production level code.&nbsp; 



Testsigma provides AI-driven features that can automatically detect test cases that could have been affected due to such changes. 



For example, if you want to change a certain UI component, it would detect all the Test Cases that are dependent on this UI Identifier and lets you run regression tests on all these Test Cases. 



To see the list of all such affected Test Cases, click on the UI Identifiers button present inside the Test Development view on the left pane and click on the View button under the Affected list parameter of the UI Identifier on which you have made changes.&nbsp; 



<figure class="wp-block-image"><img src="https://lh3.googleusercontent.com/gHLWns9cpk1oAqwXHCS_nymKd0IvePDOGo5ppKjW0WQH2uS3NFQKmRnpM_7jvC58nVI7my4RkWGZCApU-ZHdSCyE6NgqOY1lI4Y5ccZOauvw4BaDSiJiN7Kbfb6gyiKfmgfgw578" alt="Regression Testing in Testsigma -1"/></figure>



This will pop up a list of Test Cases that could be affected due to the change in the corresponding UI Identifier. 



<figure class="wp-block-image"><img src="https://lh4.googleusercontent.com/i_W8XPwzHeWMtifhO03rEaIh1oXwnyvpOUZxLK41fiBbEf1pAXyymEg8PFooOONr_VU0Yoc3yGqxSwDFKj7GCfJAkE8R83Wmkfbr1NW0Xbsdsa9WWUUVqRR81Is9Ywb7xuNKlsBj" alt="Regression Testing in Testsigma -2"/></figure>



You can click on the Run Now button to execute all such Test Cases.



2. <a href="https://support.testsigma.com/support/solutions/articles/32000018375-how-to-create-edit-delete-test-case-priorities-" target="_blank" rel="noreferrer noopener" aria-label="Prioritized Test Cases for faster Regression Testing (opens in a new tab)">Prioritized Test Cases for faster Regression Testing</a>



Testsigma allows you to prioritize and filter your test cases based on critical modules, test case type, the customer reported bugs and numerous other custom filters. This will help you to create a lean optimized test plan.&nbsp; 



For better regression testing results, you should make sure that you select all the integration test cases. Integration test cases are those which focus on the interface via which 2 modules communicate with other and hence, are more prone to bugs. 



Also, you should select a combination of both passed and <a href="https://testsigma.com/blog/10-reasons-why-test-automation-fails/" target="_blank" rel="noopener">failed test</a> cases to get a birds-eye view of the issues leading to regressions in your application. 



You need to prioritize your test cases based on criticality and impact of bug fixes for enhanced regression testing. 



To filter test cases, Click on Test Cases button under the Test Development panel. Click on the Filter button on the top right corner of the page.&nbsp; 



<figure class="wp-block-image"><img src="https://lh3.googleusercontent.com/LNTvmuev7r2SmCOo2jQA79u66JrjA_D3vwshL8d5wOwF_uKWefBuhDfBfcNOK8RMWAlLnkhVim7aEtLqqztY37YJ2-a5S9MXP4xRlckOPRPtBcXqvu3ri-GuLZudNy-hvLaLw7YL" alt="Regression Testing in Testsigma -3"/></figure>



Here, you will have the options to filter your test cases based on certain parameters. You will have options to select your test case type (Unit Test, Integration, Functional, Non-Functional, User Experience).&nbsp; 



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You can also select test cases based on the priority assigned to them.&nbsp; 



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Once you select all your test cases, click on the filter button on the bottom right corner. 



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After you have selected all the required test cases, you can click on the Test Suite button to create a test suite containing all the selected Test Cases. 



<figure class="wp-block-image"><img src="https://lh6.googleusercontent.com/EGDan8wcGO0opI6SxoRmdJdtiJNylAYK3upKX7Cq71MMnTbg_v87si9Auba280cTFHp64Kp-7ctNwYGh_7W8NJRxJqLuzeAiFE7uT-bUVO4XcfJAV2Sw0jOdnrlCged3txdzadPt" alt="Regression Testing in Testsigma -7"/></figure>



3. <a href="https://support.testsigma.com/support/solutions/articles/32000022824-parallel-execution-run-your-tests-in-parallel-using-testsigma-labs" target="_blank" rel="noreferrer noopener" aria-label="Reduced feedback time by running regression tests concurrently (opens in a new tab)">Reduced feedback time by running regression tests concurrently</a>



For test suites that contain a large number of test cases, it might consume lots of time and resources to perform regression tests on them. You can use the parallel execution feature provided by Testsigma to reduce your execution time considerably. It helps you to shorten the feedback loop, thus allowing developers to find the bugs faster and reduce the shipping time. 



To perform automated parallel testing, click on the Test Plans button inside the Test Development menu in the left panel. Here, you can see all your existing test plans (if any). Click on the Test Plan button on the top right corner of the page. 



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Here, you need to enter all the details and specifications that you would like to set for your test plan. Make sure that you select Parallel Testing under the Test Plan Type dropdown menu. 



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Click on the Select Test Suites button to select the test suites on which you want to perform parallel regression testing. 



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You need to select the test suites and click on the Add button to select the test suites. Click on the Done button once you are done. 



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After you have entered all the details, click on the create button to build the test plan for parallel regression testing. 



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To run the Parallel Test, click on the Run Now button next to the test plan that you created. 



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4. <a href="https://support.testsigma.com/support/solutions/articles/32000023148-how-to-schedule-a-test-plans-on-testsigma-" target="_blank" rel="noreferrer noopener" aria-label="Scheduled Automated Tests allowing minimal manual intervention (opens in a new tab)">Scheduled Automated Tests allowing minimal manual intervention</a>



Testsigma allows you to schedule your test executions to run them periodically without any kind of manual intervention. Scheduling automated tests add another layer of automation to your regression testing making it easier for you to detect regressions in the code modules. 



You just need to determine the execution schedule for regression testing and the frequency of the test executions and then you can easily run scheduled tests on a daily or weekly basis. Parallel execution along with scheduled automated tests helps you to create robust and automated regression tests.&nbsp; 



To schedule a Test Plan, click on the Run Later button just next to the Test Plan which you want to schedule. 



<figure class="wp-block-image"><img src="https://lh3.googleusercontent.com/3c-tUmIshvDjlmJ2FMIwhO37XZyQsudN8gn7-uDC6vhg1p5wFrynqAu3M-PgINPySEXdudq5GpCQfcjmvlVZ2RLdW9Ekiq8whsXuCJq-Nd2S6P6wVrxnpOC3sdhFhCucw4pfNwKx" alt="Regression Testing in Testsigma -14"/></figure>



You will see that a new pane pops up. You need to enter details such as the name, description, frequency, scheduled date and time of the Test Plan. Once you have entered all the details, you can click on the Create button. 



<figure class="wp-block-image"><img src="https://lh3.googleusercontent.com/ua7b7bLEQVYulpR73V6K1glNG-qr0ntzCguNZ7CxqI7PK7uggCIvxI5bEUp56387Caz4Ep3cByeQzrxIk7g8EYSyZNLNdqXhjPzfwNONzkJB2xZKPBtdKwkCsnARAL17xOcdhbRl" alt="Regression Testing in Testsigma -15"/></figure>



When you click on the Schedules button, you will see all your schedules listed there. 



<figure class="wp-block-image"><img src="https://lh5.googleusercontent.com/vsbcMdbmk6-uF9Lv4Pz9iXdU85V-SPZb3Q4RXDPfb9nBcirDR-UGHLdOHtEO28WhyMgJL-tqpR_46miAJG_VFgzKAIpqepnWu6HTa96eCkRmKkvrjd9anOdO6FXRw8hWpGqlLp9_" alt="Regression Testing in Testsigma -16"/></figure>



5. Quick, Actionable and Drill-Down feedback reports



Testsigma tool provides detailed feedback reports which help you to clearly identify failures and take action on the broken code. It provides comprehensive test reports with a drill-down approach which helps you to analyze your test results quickly, easily and effectively. The organization of test results on the test suite level and test environment level helps you to determine the failed tests quickly with actionable feedback. 



It provides a pictorial representation of the number of test cases passed and failed along with the screenshot captured for each test step. You can also watch the video for the entire Test Step execution. Moreover, you get a detailed description of each test step.



<figure class="wp-block-image"><img src="https://lh4.googleusercontent.com/ZmYo02S8AnI9Pj1_HpUGHztBy92XPddu38BwD-M9o7CF9_K5YaP5hb7ubYImVfDuPsRX5iEvjMif2BMVqPeTvGw8ntA0KYhws1aLxISeSeSFUNSWBfXb0A9YTW2HDpnOZrArt_ZI" alt="Regression Testing in Testsigma -17"/></figure>



Testsigma is a cloud-based testing tool that supports web, mobile and API test automation, allowing you to easily identify bugs that are introduced as a result of the changes that are made in the code. It hosts and runs your automated test cases on the cloud and allows you to schedule them as per your convenience and requirements. 



There are a bunch of factors, as discussed above, which makes it easier to perform regression testing on your applications. It’s a fact that the effectiveness of regression testing certainly depends upon the selection of test cases for execution, which also depends upon the criticality of the selected module or component.&nbsp; 



Testsigma allows you to detect vulnerable test cases which could be impacted by a specific change in the code through AI-driven solutions thus reducing manual intervention. Having extensive and automated regression Test Suites definitely helps to mitigate risks and Testsigma allows you to do that seamlessly. 



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Regression Testing with Testsigma-5 factors that make your regression testing easier