9 articles tagged “Automation”
Set up Playwright visual regression testing with toHaveScreenshot(): baselines, masking, stable screenshots, thresholds, multiple viewports and running it in CI.
Screenshot testing works only when the same page gives the same image twice. How to capture reliably, what to compare, and how to tell flake from a real bug.
Open-source and hosted visual regression testing tools compared on price, free tiers and what they actually screenshot. Every figure from the vendor's own page.
Every visual testing tool now advertises AI. What the models actually do, what stays deterministic, and where AI still gets it wrong, with the numbers.
Visually test every Upsun preview environment: a GitHub Action starts a Diffy comparison with production, and the result lands on the pull request as a check.
Which breakpoints to test in 2026 (with device data), what breaks at each one, manual vs automated testing, the tools, and how to screenshot every breakpoint on every deploy.
Diffy AI reads every changed screenshot in a comparison and writes one plain-English summary, split into Critical and Minor changes. Available on request.
Install the open-source Diffy plugin for Claude Code: ten skills that let the agent screenshot your pages, compare them with a baseline and report what changed.
What automation testing is, when it beats manual testing, the main types of automated tests, and how to choose the right tool for your project.
