Automated Performance Testing With WebDriver

on YouTube ↗31m

" summary

Shows how to automate real performance checks using WebDriver plus the Chrome DevTools protocol, capturing tracing and Lighthouse metrics after scripted interactions (including behind-login flows). Demonstrates a blocking function that triples paint/interactive times and drops a Lighthouse score to 33%. Describes creating per-job baselines, asserting deviations in CI, and running tests on Sauce Labs cloud or locally via the open source tool speedo, combining Puppeteer traces and Lighthouse to produce repeatable, actionable numbers.

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" chapters (6)

1. 0:00Start
2. 5:01Rendering Metrics
3. 5:53Speed Index
4. 16:41Demo
5. 23:12Tooling Landscape
6. 24:25What Does Baseline Mean

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