hard20 pts · first answer countsci-cdtest-strategy

Running only affected tests

To speed up pull requests, you run only tests mapped to changed files (test impact analysis). What safeguard is most important?

A.None; the mapping is always correctB.Run impacted tests only on FridaysC.Delete tests that are rarely selectedD.Still run the full suite on main or on a schedule, and always run everything when shared code, config or dependencies change

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Running only affected tests

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