You're Testing WHAT?
summary
Five concrete rules and experiments: five rules for test automation, an open‑source visual diff tool (appraise.qa) that runs thousands of end‑to‑end screenshot tests in parallel, a canary deployment pattern that shifts traffic and checks real user funnels, a 700‑person survey to decide rendering behavior, and video testing that snapshots frames and audio waveforms to produce image diffs. Tests focus on what the system does not how, optimize the human diffing step, and a version‑controlled video product (marakits.com) automates CI video generation.
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chapters (7)
- 0:00Intro
- 9:57Rule #1: Test where your risk is
- 18:10Rule #2: Automate to assist people
- 28:45Rule #3: Tests should facilitate change
- 33:33Rule #4: Optimize the diff
- 37:01Rule #5: Test "what"
- 37:55Outro
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