Software regression testing is a critical part of test automation. It ensures that code changes do not break anything and catches bugs early on in new builds.   

Consider this your starter guide for regression testing

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What is Software Regression Testing?

Software regression testing makes sure that code changes do not break any existing application features. These tests catch bugs early on in new builds. Without regression testing, it is more difficult, time-intensive, and expensive to find defects. 

While regression testing is beneficial, there are also important best practices to keep in mind to manage your regression testing effectively.  

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What is Regression Testing?

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Regression Testing

Why Automate Software Regression Testing? 

There are two ways to go about software regression testing: through manual tests or automated regression testing. Regression tests are prime candidates for automation, since automated regression tests are typically faster, more stable, and more cost-effective overall than manual tests.  

Automating regression tests also makes it simple to test cases repeatedly without a strain on existing organizational resources. Many organizations even opt to run automated regression testing suites overnight and analyze the test results the next morning, something that would be impossible with manual testing.  

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Automated Regression Testing: A Comprehensive Guide

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How to Automate Regression Testing: A Comprehensive Guide

Software Regression Testing Challenges & Considerations

When setting up your regression testing suite, there are certain challenges and considerations to keep in mind. Some important regression testing challenges include: 

  • Regression testing scope & coverage. Teams must ensure that the regression suite covers the most important scenarios and platforms and keeps up with the latest software iteration. The regression suite must stay agile to stay up to date and provide the most value.
  • Regression test execution time & cost. Without a stable regression testing suite, regression testing will both take a long time and be a financial drain on your organization.
  • Regression suite analysis & visibility. Teams need to be able to easily see the results that come after running a regression testing suite, as well as parse through any available reporting both quickly and effectively. 

Teams also need to consider different regression testing types when it comes to incorporating these tests into your regression suite. As an example, mobile regression testing adds a whole new set of tests that are not needed for web regression testing. Teams need to keep these considerations in mind when building a regression testing suite. 

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Considerations for Mobile Regression Testing

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Mobile Regression Testing: A Guide to Getting Started

Tips to Reduce Regression Testing Time 

Regression testing can be a very time-consuming process. But reducing your regression testing time is crucial to keep up with release cycles and your competition.  

There are various strategies that teams can apply to reduce the time spent on regression testing and ultimately test at a higher velocity, including: 

  • Building a comprehensive and organized strategy early on in testing.  
  • Executing tests in parallel with proper infrastructure. 
  • Analyzing failures and creating plans to avoid them in the future. 

In addition, it is important to create a culture of continuous learning. Incorporate and embrace feedback from stakeholders, colleagues, and all team members that work with automation, and adjust the testing strategy as needed to make regression testing even more efficient. 

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How to Reduce Regression Testing Time

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Getting Started With Software Regression Testing With Selenium

While Perfecto supports a wide range of test automation frameworks for software regression testing, Selenium is an especially popular framework for web testing on both desktop and mobile devices. 

Using Selenium for regression testing helps developers find defects in their web apps before they impact customers. Strategically, these tests also help developers modify code and introduce new features. 

There are three ways to perform Selenium regression testing with Perfecto: code-based, low-code with Perfecto’s open-source Quantum framework, and scriptless. Each method of regression testing may appeal differently to different teams, but all are simple and scalable with Perfecto. 

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How to Do Selenium Regression Testing With Perfecto

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How to Do Selenium Regression Testing With Perfecto

Try Perfecto

With Perfecto, you can automate your web and mobile regression testing, as well as reduce the overall time it takes to run them. In addition, Perfecto will generate reports that can help your team find and fix issues quickly. For teams that want to achieve in-sprint testing and higher application quality, Perfecto offers the following benefits: 

  • Test Creation for Every Team with code, scriptless, commercial, and open-source frameworks.  
  • Test Execution at Scale in the cloud across real, virtual mobile devices, and desktop browsers.  
  • AI-Driven centralized test reporting and analytics.  

Experience Perfecto in action. Start your free trial today.