Visual Comparison Testing with Playwright to Evaluate The Closed Shadow Dom

In this video, we discuss the challenges of working with the closed shadow DOM in Playwright and how visual comparison testing can be used as a solution. The closed shadow DOM is a technique used in web development to encapsulate the styling and behavior of a DOM element and prevent it from affecting the rest of the document.

Playwright automation works effectively with the open shadow DOM, but it has limitations when it comes to the closed shadow DOM. Using visual comparison testing, testers can take screenshots of the web page before and after changes are made and compare them to ensure that there are no visual differences.

This approach allows testers to bypass the limitations of the closed shadow DOM and effectively test the web page without needing to access the elements inside the shadow root.

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