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(.module:
[lux #*
["_" test (#+ Test)]
[control
[hash (#+ Hash)]
[monad (#+ do)]
{[0 #test]
[/
["$." functor (#+ Injection Comparison)]
["$." apply]
["$." monad]]}]
[data
["." error]
["." text ("#;." equivalence)
format]]
[math
["r" random]]]
{1
["." / (#+ Dirty)]})
(def: injection
(Injection Dirty)
/.taint)
(def: comparison
(Comparison Dirty)
(function (_ == left right)
(== (/.trust left)
(/.trust right))))
(def: #export test
Test
(<| (_.context (%name (name-of /.Dirty)))
(do r.monad
[raw (r.ascii 10)
#let [dirty (/.taint raw)]]
($_ _.and
($functor.spec ..injection ..comparison /.functor)
($apply.spec ..injection ..comparison /.apply)
($monad.spec ..injection ..comparison /.monad)
(_.test "Can clean a dirty value by trusting it."
(text;= raw (/.trust dirty)))
(_.test "Can validate a dirty value."
(case (/.validate (function (_ value)
(if (|> value text.size (n/> 0))
(#error.Success value)
(#error.Failure "Empty text is invalid.")))
dirty)
(#error.Success clean)
(text;= raw clean)
(#error.Failure error)
false))
))))
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