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> How many tests does a PR need? One? Five? Enough so the overall coverage doesn't go down.

• ghayes 9y ago
  Be careful that coverage is a proxy metric to good tests. Striving for high coverage can mislead you on the quality of your tests.
  • rootusrootus 9y ago
    On the flip side, encouraging good coverage usually ends up uncovering some bugs that might otherwise have gone unnoticed until they bit someone.
    • Mikushi 9y ago
      On the other flip side it encourages writing test that have zero business value.
  • aianus 9y ago
    High coverage is necessary but not sufficient, sure. I don't think you can have a good test suite with low coverage (< 80%).