Automated Performance Testing With WebDriver

on YouTube ↗25m

" summary

Automates Chrome DevTools via WebDriver to capture tracing and compute user-centric metrics, using webdriver.io devtools service to open a DevTools connection, start/stop traces, and save trace artifacts. Tests assert metrics like first meaningful paint 3.5s and overall load <= 6.5s, plus payload and asset checks (images compressed, JS size). Demo disables compression and tree shaking: payload ~1.6MB, load jumps to ~21–23s, image checks still pass but JS size and load-time assertions fail.

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" chapters (8)

1. 0:00Introduction to performance
2. 1:04Webdriver for performance
3. 4:21Limitations of Webdriver
4. 7:48Measuring web performance
5. 10:39User centric metrics
6. 13:16Browser tracing explained
7. 16:00Automated performance testing
8. 19:32Demo and conclusion

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