Popular Libraries for Automating Visual Regression Testing
1. Percy.io
A visual testing tool called Percy works well with current front-end development processes. It takes screenshots of websites and recognizes visual differences between versions automatically. Percy provides features including responsive design testing support, interfaces with common CI/CD technologies, and visual review and approval workflows.
Who Uses: Development teams who work on websites and online applications and wish to automate visual regression testing as part of their CI/CD processes use Percy.io.
Pros:
- Smooth interaction with widely used CI/CD tools, such as GitHub Actions, Jenkins, and CircleCI.
- Offers graphic dashboards that make it simple to compare screenshots and identify changes in appearance.
- The capacity to take screenshots with different viewport widths and browsers.
Cons:
- Restricted free tier, premium programs offer more extensive functionality.
- Needs internet access to take and process screenshots.
- May not be able to handle dynamic content or complex visual elements without some constraints.
2. BackstopJS
This open-source tool for visual regression testing can be used headless with Puppeteer or within a browser. It uses an easy configuration file to build test scenarios for developers, and it takes screenshots of websites automatically. Features like custom thresholds for change detection, visual diffing, and connection with CI/CD pipelines are all offered by BackstopJS.
Who Uses: Developers and QA engineers who want a command-line interface for setting up and executing visual regression tests are the ones who use BackstopJS.
Pros:
- A JSON-based configuration file is used for easy setup and configuration.
- Integrating into CI/CD pipelines is made simple by the command-line interface.
- Allows for testing on various devices and viewports.
Cons:
- Restricted analytical and reporting capabilities in contrast to certain other tools.
- Additional manual labor is needed to set up and manage test scenarios.
- Perhaps not as appropriate for groups who need sophisticated visual diffing algorithms or a lot of collaboration tools.
3. Applitools Eyes
AI-powered visual validation and regression testing capabilities are offered by Applitools Eyes, a potent visual testing tool. Numerous programming languages and frameworks are supported, such as Cypress, Selenium WebDriver, and others. Advanced functionality like cross-browser testing, layout testing, and connection with CI/CD processes are available with Applitools Eyes.
Who Uses: QA engineers and developers who work on online and mobile applications who need automated visual testing capabilities are avid supporters of Applitools Eyes.
Pros:
- Powerful AI-powered visual testing techniques for precise image comparison.
- Supports a large number of programming languages and platforms, including desktop, mobile, and web apps.
- Intelligent maintenance tools to lower false positives and automatically manage baseline photos.
Cons:
- For solo developers or small teams, prices could be somewhat high.
- The complex feature setup and configuration learning curve.
- restricted offline testing capacity in contrast to several other tools.
Related Articles:
How to Automate Visual Regression Testing?
Automation is essential to simplifying this process since it provides the testing workflow with efficiency, accuracy, and scalability. Development teams can identify visual differences early in the development cycle by automating visual regression testing. This allows for quick feedback and improves the overall quality of the software. Let’s understand about this term in detail.
Table of Content
- What does Visual Regression Testing Mean?
- Why should you Automate it?
- What about Manual Visual Checks?
- What percentage of Visual Bugs are caught by Automated Visual Regression Tests?
- Popular Libraries for Automating Visual Regression Testing
- Conclusion: Automate Visual Regression Testing
- FAQs: Automate Visual Regression Testing
Contact Us