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Generative/Property based testing with test.check

Let's have fun with generative testing! We'll have a look at the newly renamed test.check library (

This should be the opportunity to discuss the use cases of unit testing vs generative testing, see how they could complement each other...

If we're brave enough, we could have a look at the experimental feature branch were they try to deterministically test race conditions as well (

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  • Patrik K.

    If you need directions call[masked]

    April 22, 2014

  • Mattias L.

    If there is interest i can talk a little bit about Haskell quickcheck. As a comparison.

    4 · April 7, 2014

    • Mattias L.

      It means I havn't prepared anything quickchecky in a strong static type setting

      April 22, 2014

    • Jean-Louis G.

      DO IT LIVE! :)

      1 · April 22, 2014

  • Erik S.

    Stuff has come up, can't go tonight :( :( :(

    April 22, 2014

  • Jean-Louis G.

    I'll try to do the classic roman numeral kata with a twist: quickcheck-driven roman numerals! [Spoiler: surprising results :)]

    1 · April 14, 2014

  • Suvash T.

    Ah, damn. Not in Gbg as well. This would've been sweet. Also recently saw a post from Pivotal Labs where they're using Cljs for property based testing.

    will have to miss out on this one though.

    April 7, 2014

  • Johan L.

    Would've been very interesting, especially after watching John Hughes talk from Clojure/West (available on YouTube). But I'll be abroad so I can't join.

    April 7, 2014

  • Fredrik D.


    April 7, 2014

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