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... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
(.require
[library
[lux (.except)
[abstract
["[0]" monad (.only do)
["[1]T" \\test]]
["[0]" functor
["[1]T" \\test (.only Injection Comparison)]]
["[0]" apply
["[1]T" \\test]]
["[0]" equivalence
["[1]T" \\test]]]
[control
["[0]" pipe]
["[0]" io]]
[data
["[0]" text (.use "[1]#[0]" equivalence)]]
[math
["[0]" random (.only Random)]
[number
["n" nat]]]
[test
["_" property (.only Test)]]]]
[\\library
["[0]" / (.only Try)]])
(def injection
(Injection Try)
(|>> {/.#Success}))
(def comparison
(Comparison Try)
(function (_ ==)
(of (/.equivalence ==) =)))
(def .public (attempt element)
(All (_ a) (-> (Random a) (Random (Try a))))
(all random.or
(random.unicode 1)
element))
(def .public test
Test
(<| (_.covering /._)
(_.for [/.Try
/.#Failure /.#Success])
(do random.monad
[expected random.nat
alternative (|> random.nat (random.only (|>> (n.= expected) not)))
error (random.unicode 1)
.let [(open "io#[0]") io.monad]])
(all _.and
(_.for [/.equivalence]
(equivalenceT.spec (/.equivalence n.equivalence) (..attempt random.nat)))
(_.for [/.functor]
(functorT.spec ..injection ..comparison /.functor))
(_.for [/.apply]
(applyT.spec ..injection ..comparison /.apply))
(_.for [/.monad]
(monadT.spec ..injection ..comparison /.monad))
(_.coverage [/.trusted]
(n.= expected
(/.trusted {/.#Success expected})))
(_.coverage [/.of_maybe]
(when [(/.of_maybe {.#Some expected})
(/.of_maybe {.#None})]
[{/.#Success actual} {/.#Failure _}]
(n.= expected actual)
_
false))
(_.coverage [/.maybe]
(when [(/.maybe {/.#Success expected})
(/.maybe (is (/.Try Nat) {/.#Failure error}))]
[{.#Some actual} {.#None}]
(n.= expected actual)
_
false))
(_.coverage [/.else]
(and (n.= expected
(/.else alternative {/.#Success expected}))
(n.= alternative
(/.else alternative (is (Try Nat) {/.#Failure error})))))
(_.coverage [/.when]
(`` (and (,, (with_template [<scenario>]
[(of (/.equivalence n.equivalence) =
<scenario>
(/.when true <scenario>))]
[{/.#Success expected}]
[{/.#Failure error}]
))
(of (/.equivalence n.equivalence) =
(/.when false {/.#Success expected})
(/.when false {/.#Failure error})))))
(_.coverage [/.with /.lifted]
(let [lifted (/.lifted io.monad)]
(|> (do (/.with io.monad)
[a (lifted (io#in expected))
b (in alternative)]
(in (n.+ a b)))
io.run!
(pipe.when
{/.#Success result}
(n.= (n.+ expected alternative)
result)
_
false))))
)))
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