medium10 pts · first answer countstest-designtest-automation

Tests for code nobody understands

You must change an old invoice generator with no tests and no clear spec. Which approach captures its current behaviour safely before you change it?

A.Approval (golden master) tests on recorded outputsB.Write unit tests from the missing spec firstC.Test only the new feature you are addingD.Delete the old code and rewrite it from scratch

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Tests for code nobody understands

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