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(.module:
[lux #*
[control
[monad (#+ do)]
[security
["." integrity]]]
[concurrency
["." promise]]
[data
["." error]
["." text
format]]
["." io]
[world
["." binary]
["." net
["@" udp]]]
[math
["r" random]]]
lux/test
[///
["_." binary]])
(def: localhost net.Address "127.0.0.1")
(def: port
(r.Random net.Port)
(|> r.nat
(:: r.monad map
(|>> (n/% 1000)
(n/+ 8000)))))
(context: "UDP networking."
(do @
[port ..port
size (|> r.nat (:: @ map (|>> (n/% 100) (n/max 10))))
from (_binary.binary size)
to (_binary.binary size)]
($_ seq
(wrap (do promise.monad
[result (promise.future
(do io.monad
[server (@.server port)
client @.client
####################
_ (:: client write [[localhost port] from])
[bytes-from [from-address from-port] temp] (:: server read size)
#let [from-worked? (and (n/= size bytes-from)
(:: binary.equivalence = from (integrity.trust temp)))]
####################
_ (:: server write [[from-address from-port] to])
[bytes-to [to-address to-port] temp] (:: client read size)
#let [to-worked? (and (n/= size bytes-to)
(:: binary.equivalence = to (integrity.trust temp))
(n/= port to-port))]
####################
_ (:: client close [])
_ (:: server close [])]
## (wrap false)
(wrap (and from-worked?
to-worked?))
))]
(assert "Can communicate between client and server."
(error.default #0 result))))
)))
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