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Build a Tiny Mutation Check Before You Trust Generated Tests

This story is from 2026-09-06. It is preserved in the archive; the latest stories are on the live feed.

Last Thursday I had a green test suite and a broken function. That pairing is nastier than a red bar, because it feels like a receipt. When you run the script in this post, I want this printout in your terminal. Not a vibe. A printout. baseline: PASS (2 tests) mutant always_one: SURVIVED mutant alw…

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  1. 2026-09-06 20:23 · DEV Community — AI
    Build a Tiny Mutation Check Before You Trust Generated Tests

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