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(.module:
[library
[lux #*
[type (#+ :sharing)]
["_" test (#+ Test)]
[abstract
[equivalence (#+ Equivalence)]
[functor (#+ Functor)]
[apply (#+ Apply)]
["." monad (#+ Monad do)]
["." enum]
[\\specification
["$." functor (#+ Injection Comparison)]
["$." apply]
["$." monad]]]
[control
["." try (#+ Try)]]
[data
[collection
["." list]]]
[math
["." random]
[number
["n" nat]]]]]
[\\library
["." / (#+ Region)
[//
["." thread (#+ Thread)]
["." exception (#+ Exception exception:)]]]])
(exception: oops)
(def: (success? result)
(All [a] (-> (Try a) Bit))
(case result
(#try.Success _)
true
(#try.Failure _)
false))
(def: (throws? exception result)
(All [e a] (-> (Exception e) (Try a) Bit))
(case result
(#try.Success _)
false
(#try.Failure error)
(exception.match? exception error)))
(def: (injection value)
(Injection (All [a] (All [! r] (Region r (Thread !) a))))
(function (_ [region scope])
(function (_ !)
[scope
(#try.Success value)])))
(def: comparison
(Comparison (All [a] (All [! r] (Region r (Thread !) a))))
(function (_ == left right)
(case [(:sharing [a]
(Equivalence a)
==
(Try a)
(thread.run (:assume (/.run thread.monad left))))
(:sharing [a]
(Equivalence a)
==
(Try a)
(thread.run (:assume (/.run thread.monad right))))]
[(#try.Success left) (#try.Success right)]
(== left right)
_
false)))
(def: .public test
Test
(<| (_.covering /._)
(_.for [/.Region])
(do {! random.monad}
[expected_clean_ups (|> random.nat (\ ! map (|>> (n.% 100) (n.max 1))))]
($_ _.and
(_.for [/.functor]
($functor.spec ..injection ..comparison (: (All [! r]
(Functor (Region r (thread.Thread !))))
(/.functor thread.functor))))
(_.for [/.apply]
($apply.spec ..injection ..comparison (: (All [! r]
(Apply (Region r (thread.Thread !))))
(/.apply thread.monad))))
(_.for [/.monad]
($monad.spec ..injection ..comparison (: (All [! r]
(Monad (Region r (thread.Thread !))))
(/.monad thread.monad))))
(_.cover [/.run]
(thread.run
(do {! thread.monad}
[clean_up_counter (thread.box 0)
.let [//@ !
count_clean_up (function (_ value)
(do !
[_ (thread.update inc clean_up_counter)]
(in (#try.Success []))))]
outcome (/.run !
(do {! (/.monad !)}
[_ (monad.map ! (/.acquire //@ count_clean_up)
(enum.range n.enum 1 expected_clean_ups))]
(in [])))
actual_clean_ups (thread.read clean_up_counter)]
(in (and (..success? outcome)
(n.= expected_clean_ups
actual_clean_ups))))))
(_.cover [/.failure]
(thread.run
(do {! thread.monad}
[clean_up_counter (thread.box 0)
.let [//@ !
count_clean_up (function (_ value)
(do !
[_ (thread.update inc clean_up_counter)]
(in (#try.Success []))))]
outcome (/.run !
(do {! (/.monad !)}
[_ (monad.map ! (/.acquire //@ count_clean_up)
(enum.range n.enum 1 expected_clean_ups))
_ (/.failure //@ (exception.error ..oops []))]
(in [])))
actual_clean_ups (thread.read clean_up_counter)]
(in (and (..throws? ..oops outcome)
(n.= expected_clean_ups
actual_clean_ups))))))
(_.cover [/.except]
(thread.run
(do {! thread.monad}
[clean_up_counter (thread.box 0)
.let [//@ !
count_clean_up (function (_ value)
(do !
[_ (thread.update inc clean_up_counter)]
(in (#try.Success []))))]
outcome (/.run !
(do {! (/.monad !)}
[_ (monad.map ! (/.acquire //@ count_clean_up)
(enum.range n.enum 1 expected_clean_ups))
_ (/.except //@ ..oops [])]
(in [])))
actual_clean_ups (thread.read clean_up_counter)]
(in (and (..throws? ..oops outcome)
(n.= expected_clean_ups
actual_clean_ups))))))
(_.cover [/.acquire /.clean_up_error]
(thread.run
(do {! thread.monad}
[clean_up_counter (thread.box 0)
.let [//@ !
count_clean_up (function (_ value)
(do !
[_ (thread.update inc clean_up_counter)]
(in (: (Try Any)
(exception.except ..oops [])))))]
outcome (/.run !
(do {! (/.monad !)}
[_ (monad.map ! (/.acquire //@ count_clean_up)
(enum.range n.enum 1 expected_clean_ups))]
(in [])))
actual_clean_ups (thread.read clean_up_counter)]
(in (and (or (n.= 0 expected_clean_ups)
(..throws? /.clean_up_error outcome))
(n.= expected_clean_ups
actual_clean_ups))))))
(_.cover [/.lift]
(thread.run
(do {! thread.monad}
[clean_up_counter (thread.box 0)
.let [//@ !]
outcome (/.run !
(do (/.monad !)
[_ (/.lift //@ (thread.write expected_clean_ups clean_up_counter))]
(in [])))
actual_clean_ups (thread.read clean_up_counter)]
(in (and (..success? outcome)
(n.= expected_clean_ups
actual_clean_ups))))))
))))
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