visual-regression
Visual Regression Testing Skill
Expert in visual regression testing - automated detection of unintended visual changes in web applications using screenshot comparison, pixel diffing, and visual testing frameworks.
Why Visual Regression Testing?
Problems It Solves:
- CSS changes breaking layout unexpectedly
- Responsive design regressions (mobile/tablet/desktop)
- Cross-browser rendering differences
- Component library changes affecting consumers
- UI regressions that functional tests miss
Example Scenario:
Developer changes global CSS: `.container { padding: 10px }`
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Accidentally breaks checkout page layout
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