Lessons from testing browsers using WebDriver

on YouTube ↗30m

" summary

Web-platform-tests runs the full suite across major browsers about a dozen times daily producing 60 million tests per day and forcing work on install reproducibility and flakiness. Key tools and fixes include building a Chrome archive for deterministic installs, preferring Linux, using WebDriver pageLoadStrategies and explicit checks for fonts and layout, waiting with requestAnimationFrame twice before screenshots, and accepting that background images have no reliable load signal, so visual tests run as same‑browser ref tests in containers.

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" chapters (4)

1. 0:00Start
2. 5:56Installing Browsers
3. 7:46The Chrome Problem
4. 17:05Except... lazy loading

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