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(.require
[library
[lux (.except)
[abstract
[monad (.only do)]
[\\specification
["$[0]" equivalence]
["$[0]" hash]
["$[0]" monoid]
["$[0]" functor]
["$[0]" apply]
["$[0]" monad]]]
[control
["[0]" io (.use "[1]#[0]" monad)]
["[0]" pipe]]
[data
["[0]" text]
[collection
["[0]" list]]]
[math
["[0]" random (.only Random)]
[number
["n" nat]]]
[test
["_" property (.only Test)]]]]
[\\library
["[0]" / (.use "[1]#[0]" monoid monad)]])
(def .public test
Test
(<| (_.covering /._)
(_.for [.Maybe
.#None .#Some])
(all _.and
(_.for [/.equivalence]
($equivalence.spec (/.equivalence n.equivalence) (random.maybe random.nat)))
(_.for [/.hash]
(|> random.nat
(of random.monad each (|>> {.#Some}))
($hash.spec (/.hash n.hash))))
(_.for [/.monoid]
($monoid.spec (/.equivalence n.equivalence) /.monoid (random.maybe random.nat)))
(_.for [/.functor]
($functor.spec /#in /.equivalence /.functor))
(_.for [/.apply]
($apply.spec /#in /.equivalence /.apply))
(_.for [/.monad]
($monad.spec /#in /.equivalence /.monad))
(do random.monad
[left random.nat
right random.nat
.let [expected (n.+ left right)]]
(let [lifted (/.lifted io.monad)]
(_.coverage [/.with /.lifted]
(|> (io.run! (do (/.with io.monad)
[a (lifted (io#in left))
b (in right)]
(in (n.+ a b))))
(pipe.when
{.#Some actual}
(n.= expected actual)
_
false)))))
(do random.monad
[default random.nat
value random.nat]
(_.coverage [/.else]
(and (same? default (/.else default
(is (Maybe Nat)
{.#None})))
(same? value (/.else default
{.#Some value})))))
(do random.monad
[value random.nat]
(_.coverage [/.trusted]
(same? value (/.trusted {.#Some value}))))
(do random.monad
[value random.nat]
(_.coverage [/.list]
(of (list.equivalence n.equivalence) =
(list value)
(/.list {.#Some value}))))
(do random.monad
[expected random.nat
.let [(open "/#[0]") (/.equivalence n.equivalence)]]
(_.coverage [/.when]
(and (/#= {.#Some expected} (/.when true {.#Some expected}))
(/#= {.#None} (/.when false {.#Some expected})))))
)))
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