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|
(.require
[library
[lux (.except)
[abstract
[monad (.only do)]]
[control
["[0]" try (.only Try)]
["[0]" exception (.only exception)]
["[0]" io (.only IO io)]]
[data
[text
["%" \\format (.only format)]]
[collection
["[0]" list]
["[0]" sequence (.only Sequence)]]]
[math
["[0]" random]
[number
["n" nat]]]
[test
["_" property (.only Test)]
["[0]" unit]]]]
[\\library
["[0]" / (.only)
[//
["[0]" atom (.only Atom)]
["[0]" async (.only Async Resolver) (.use "[1]#[0]" monad)]
["[0]" frp]]]])
(exception got_wrecked)
(def counter
(/.Behavior Nat)
(function (_ message state self)
(message state self)))
(def (count! increment)
(-> Nat (/.Message Nat Nat))
(function (_ state self)
(let [state' (n.+ increment state)]
(async#in {try.#Success [state' state']}))))
(def (mailed? outcome)
(-> (Try Any) Bit)
(when outcome
{try.#Success _} true
{try.#Failure _} false))
(def .public test
Test
(do [! random.monad]
[initial_state random.nat
.let [as_mail (is (All (_ a) (-> (-> a a) (/.Mail a)))
(function (_ transform)
(function (_ state actor)
(|> state transform {try.#Success} async#in))))
++! (is (/.Mail Nat) (as_mail ++))
--! (is (/.Mail Nat) (as_mail --))]]
(<| (_.covering /._)
(_.for [/.Actor])
(all _.and
(_.coverage [/.alive?]
(io.run! (do io.monad
[actor (/.spawn! /.default 0)]
(/.alive? actor))))
(_.coverage [/.poison!]
(let [poisoned_actors_die!
(io.run! (do io.monad
[actor (/.spawn! /.default 0)
poisoned? (/.poison! actor)
alive? (/.alive? actor)]
(in (and (..mailed? poisoned?)
(not alive?)))))
cannot_poison_more_than_once!
(io.run! (do io.monad
[actor (/.spawn! /.default 0)
first_time? (/.poison! actor)
second_time? (/.poison! actor)]
(in (and (..mailed? first_time?)
(not (..mailed? second_time?))))))]
(and poisoned_actors_die!
cannot_poison_more_than_once!)))
(let [[read write] (is [(Async Text) (Resolver Text)]
(async.async []))]
(in (do async.monad
[_ (async.future (do io.monad
[actor (/.spawn! (is (/.Behavior Any)
(function (_ message state self)
(do [! async.monad]
[outcome (message state self)]
(when outcome
{try.#Failure cause}
(do !
[_ (async.future (write cause))]
(in outcome))
{try.#Success _}
(in outcome)))))
[])]
(/.poison! actor)))
_ (async.delay 100)
result (async.future (async.value read))]
(unit.coverage [/.poisoned]
(when result
{.#Some error}
(exception.match? /.poisoned error)
{.#None}
false)))))
(in (do async.monad
[sent? (async.future (do io.monad
[actor (/.spawn! /.default 0)
sent? (/.mail! ++! actor)]
(in (..mailed? sent?))))]
(unit.coverage [/.Behavior /.Mail
/.default /.spawn! /.mail!]
sent?)))
(in (do async.monad
[result (async.future (do io.monad
[counter (/.spawn! /.default 0)
_ (/.poison! counter)]
(/.mail! ++! counter)))]
(unit.coverage [/.dead]
(when result
{try.#Success outcome}
false
{try.#Failure error}
(exception.match? /.dead error)))))
(let [die! (is (/.Mail Nat)
(function (_ state actor)
(async#in (exception.except ..got_wrecked []))))]
(in (do async.monad
[result (async.future (do io.monad
[actor (/.spawn! /.default initial_state)
sent? (/.mail! die! actor)
alive? (/.alive? actor)
obituary (/.obituary' actor)]
(in {try.#Success [actor sent? alive? obituary]})))]
(unit.coverage [/.Obituary /.obituary']
(when result
{try.#Success [actor sent? alive? {.#Some [error state (list single_pending_message)]}]}
(and (..mailed? sent?)
(not alive?)
(exception.match? ..got_wrecked error)
(n.= initial_state state)
(same? die! single_pending_message))
_
false)))))
(in (do async.monad
[counter (async.future (/.spawn! ..counter 0))
result (do (try.with async.monad)
[output_1 (/.tell! (count! 1) counter)
output_2 (/.tell! (count! 1) counter)
output_3 (/.tell! (count! 1) counter)]
(in (and (n.= 1 output_1)
(n.= 2 output_2)
(n.= 3 output_3))))]
(unit.coverage [/.Message /.tell!]
(when result
{try.#Success outcome}
outcome
{try.#Failure error}
false))))
(do !
[num_events (at ! each (|>> (n.% 10) ++) random.nat)
events (random.list num_events random.nat)
num_observations (at ! each (n.% num_events) random.nat)
.let [expected (list.first num_observations events)
sink (is (Atom (Sequence Nat))
(atom.atom sequence.empty))]]
(in (do async.monad
[agent (async.future
(do [! io.monad]
[agent (/.spawn! /.default 0)
_ (/.observe! (function (_ event stop)
(function (_ events_seen self)
(async.future
(if (n.< num_observations events_seen)
(do !
[_ (atom.update! (sequence.suffix event) sink)]
(in {try.#Success (++ events_seen)}))
(do !
[_ stop]
(in {try.#Failure "YOLO"}))))))
(frp.sequential 0 events)
agent)]
(in agent)))
_ (/.obituary agent)
actual (async.future (atom.read! sink))]
(unit.coverage [/.Stop /.observe! /.obituary]
(at (list.equivalence n.equivalence) = expected (sequence.list actual))))))
))))
|
