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clojure-spec
Nazral 2024-09-09T11:50:10.565379Z
Is there a way to run the :fn check with a specific input and not just generated ones ?
nikolavojicic 2024-09-12T22:29:21.220259Z
You can pull it out into a separate spec and test that spec with s/valid?
Nazral 2024-09-09T04:31:58.827949Z
Hello, I am not completely clear about the pros and cons of using specs' fdef instead of :pre and :post , fdef intuitively seems more complete
seancorfield 2024-09-09T14:55:19.983719Z
I wrote about all the ways we use spec at work https://corfield.org/blog/2019/09/13/using-spec/
🙏 1
seancorfield 2024-09-09T04:42:36.376569Z
Pre/Post use plain old assert which is on by default (but some people turn it off in production). They tend to produce fairly poor error messages. Fdef is off by default. You can instrument all or just a subset of functions, while you are developing and/or testing. Spec can generate test data for you and can exercise your function in thousands of ways - generative testing.
Nazral 2024-09-09T05:32:13.975419Z
thank you for your answer! I'm already using spec for generative testing, that's also why i'm considering fdef
Nazral 2024-09-09T04:32:18.680489Z
(specially with the :fn key)