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(.module:
[lux #*
["_" test (#+ Test)]
[abstract
[monad (#+ do)]]
[control
["." try]]
[data
["." bit ("#\." equivalence)]
[format
["." json (#+ JSON)]]]
[math
["." random (#+ Random)]]]
{1
["." / (#+ Codec)
[//
[equivalence (#+ Equivalence)]]]})
(def: json
(Codec JSON Bit)
(let [field "value"]
(implementation
(def: encode
(|>> #json.Boolean
[field]
list
json.object))
(def: decode
(json.get_boolean field)))))
(def: codec
(Codec Text Bit)
(/.compose json.codec ..json))
(def: #export test
Test
(do random.monad
[expected random.bit]
(<| (_.covering /._)
(_.cover [/.compose]
(case (|> expected (\ ..codec encode) (\ ..codec decode))
(#try.Success actual)
(bit\= expected actual)
(#try.Failure error)
false)))))
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