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How ARIA Snapshot Testing Solves Common Playwright Issues?
Why ARIA Snapshot Testing is a Must for Playwright Users
The challenges of testing various elements on a webpage, such as headings and links, noting that traditional code-based tests can become complex and brittle. I am not a huge fan of using screenshots for testing, as they can break with minor layout changes.
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Playwright’s ARIA Snapshots offer a powerful method to validate the accessibility tree of your web applications, ensuring that content is both accessible and correctly structured. By capturing the hierarchical representation of accessible elements, you can compare snapshots over time to detect unintended changes. This article delves into how to utilize ARIA Snapshots for content validation, explores the features provided by Playwright’s recorder, and provides practical examples to enhance your testing strategy.
Playwright offers a feature to streamline updating expectations in test cases with npx playwright test --update-snapshots, which creates a rebaseline—a git patch file—to apply necessary changes. This automates the adjustment of expectations when fundamental changes occur in the application.
