Visual Regression Testing — Screenshot Comparison
This is Part 16 of the “Frontend Testing, Done Right” series. Browse the full series · Glossary Ever had every test green while the screen was broken? Logic fine, one CSS rule collapsing the layout? Visual regression testing stores a reference screenshot (the baseline) and compares pixels, automatically catching “regressions only eyes can see.” It’s built into Playwright — one line to start — but there’s a knack to stable shots and an ambush called environment differences. All covered here. ...