How do you perform cross-browser and cross-device regression testing for web applications?

3 Select your test tools

Depending on your test methods, you will need to select the appropriate tools to help you perform cross-browser and cross-device regression testing for web applications. For manual testing, you can use browser developer tools, browser extensions, or online services that provide access to real or simulated browsers and devices. For example, you can use BrowserStack, CrossBrowserTesting, or LambdaTest to test your web application on various platforms. For automated testing, you can use tools and frameworks that support cross-browser and cross-device testing. For example, you can use Selenium, TestNG, or Cypress to write and run test scripts on multiple browsers and devices.

4 Execute your test cases

Once you have your test scope, methods, and tools ready, you can execute your test cases across different browsers and devices. You should follow the best practices of regression testing, such as creating a test plan, documenting the test results, reporting the defects, and verifying the fixes. You should also use a test management tool or a spreadsheet to track and organize your test cases, test data, test environments, and test outcomes. You should also communicate with your team and stakeholders regularly to ensure alignment and collaboration.

5 Evaluate your test coverage

After you execute your test cases, you should evaluate your test coverage. This means measuring how well your test cases cover the requirements and functionalities of your web application across different browsers and devices. You can use metrics such as test coverage percentage, defect density, defect severity, and defect resolution time to assess the quality and effectiveness of your testing. You should also use feedback from your users, clients, and peers to identify any gaps or issues in your testing. You should also review and improve your test cases, methods, and tools based on your evaluation.

6 Repeat your test cycle

Cross-browser and cross-device regression testing for web applications is not a one-time activity. It is a continuous process that requires repetition and adaptation. You should repeat your test cycle whenever there are changes or updates to your web application, browsers, devices, or user expectations. You should also monitor the performance and usability of your web application across different platforms regularly. You should also keep up with the latest trends and technologies in web development and testing to ensure that your web application meets the standards and expectations of your users.