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Treat a Tangled File as a Black Box First

This story is from 2026-09-03. It is preserved in the archive; the latest stories are on the live feed.

Treat a tangled file as a black box first. Characterization tests pin today's mixed side effects. Only then extract one pure function. Large model diffs often look like real progress. They rewrite mixed I/O without a local oracle. Tests stay green while receipts and files drift. This article shows…

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  1. 2026-09-03 13:18 · DEV Community — AI
    Treat a Tangled File as a Black Box First

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