Latest / The Tech Career Podcast with Fexingo: Engineering Jobs, Interviews, and FAANG Career Strategy
How FAANG Engineers Use Unit Tests as Debugging Documentation
In this episode, Lucas and Luna unpack a subtle but powerful career lever: treating unit tests as living documentation for debugging. Lucas explains how writing tests before code — test-driven development — forces you to define success conditions early, making it easier to isolate bugs later. He shares a concrete example from a real incident at a large tech company where a well-tested module was debugged in minutes, while an untested sibling module took hours. They discuss how this practice reduces cognitive load during production firefights, helps junior engineers ramp up faster, and is a…
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