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(.module:
[lux #*
["_" test (#+ Test)]
["." ffi]
[abstract
[monad (#+ do)]]
[control
["." try]]
[math
["." random]
[number
["n" nat]]]]
{1
["." /]})
(def: #export test
Test
(<| (_.covering /._)
(do {! random.monad}
[expected random.nat])
($_ _.and
(_.cover [/.pre]
(case (ffi.try (/.pre (n.even? expected)
true))
(#try.Success output)
output
(#try.Failure error)
(not (n.even? expected))))
(_.cover [/.post]
(case (ffi.try (/.post n.odd?
expected))
(#try.Success actual)
(is? expected actual)
(#try.Failure error)
(not (n.odd? expected))))
)))
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