How to mask dynamic elements in Playwright screenshots
AI Summary
The video shares a Playwright tip focused on handling screenshots of web pages containing dynamic elements like carousels or videos that constantly change. Such dynamic content can cause pixel differences between test runs, complicating visual regression testing. The presenter demonstrates how to use Playwright’s ‘mask’ property on the screenshot method to exclude specific dynamic elements (e.g., GIF images) from screenshots. This ensures consistent screenshots across test runs and smooth visual regression tests. The mask property is also compatible with Playwright’s visual regression assertion feature, allowing selective masking for accurate test comparisons. Overall, the tip highlights the usefulness of the ‘mask’ feature for managing dynamic web content in automated screenshot testing.