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Unit testing's only job should be to flag when something unexpected happens.

Drawn from what Yihui Xie said

What Yihui Xie actually said

Word for word, with the source under each one. They did not write this page.

  1. Yihui Xie

    Statistician and software engineer who writes R packages…

    I still believe that unit testing should be nothing more than "tell me if something unexpected happened."

    Where this was said

    ↗Converting testthat Tests to testityihui.org

    All 3 korrents from this piecethis one is 1st

Added to korrents 15 May 2026 · How quotes work · Something wrong? Tell us

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