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When a Code Change Happens, Do We Really Need to Run Every Test?

This story is from 2026-10-01. It is preserved in the archive; the latest stories are on the live feed.

When a small change is made to an application, one thing usually follows: Run the regression suite. It makes sense. We want to make sure the change didn't break anything somewhere else. But recently I started thinking about something: Do we really need to run every test after every code change? Ima…

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  1. 2026-10-01 14:25 · DEV Community — AI
    When a Code Change Happens, Do We Really Need to Run Every Test?

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