This video was recorded at Code Mesh LDN 19 - http://bit.ly/37xc3Nr

Get involved in Code Sync's next conference - http://bit.ly/2Mcm4aS

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HOW TO SPECIFY IT! A GUIDE TO WRITING PROPERTIES OF PURE FUNCTIONS
by John Hughes

ABSTRACT
Property-based testing is an appealing approach to testing, but requires developers to identify suitable properties to test--and many find this difficult, and find the simple properties in tutorials difficult to generalize. In this talk, I'll present five different strategies for coming up with properties of pure functions, and I'll compare their effectiveness as tests; I'll also warn of the biggest pitfall to be avoided. You'll leave my talk with new ideas for writing properties of your own functions. I'll be using the Haskell version of QuickCheck for my examples, but the ideas are usable with any property-based testing tool.

Slides & full abstract: https://codesync.global/speaker/john-hughes/

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THE SPEAKER - JOHN HUGHES
Co-designer of Haskell and QuickCheck

John Hughes…