lecture 14 of 170 completed

Forensic debugging with traces

Playwright records enough to diagnose a failure you never saw. Most engineers use a fraction of it, so this is the method.

What you'll learn

  • What a trace records beyond a screenshot
  • The order to read one in
  • How to classify a failure before digging

A test failed once, three days ago, on a machine that no longer exists. You have a trace file. That is enough, and the method below is how a senior engineer gets from that file to a cause in minutes rather than an afternoon.

Configure it so the evidence exists.

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The Foundations track and the first 5 lectures of each framework are free. This lecture is part of the paid course, which unlocks every lecture, all three frameworks, and downloads.

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