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(.using
[library
[lux "*"
["_" test (.only Test)]
[abstract
[monad (.only do)]]
[control
["[0]" try]
[concurrency
["[0]" async (.only Async) ("[1]#[0]" monad)]]]
[data
["[0]" binary ("[1]#[0]" equivalence)
["$[1]" \\test]]]
[math
["[0]" random (.only Random)]
[number
["n" nat]]]
[world
["[0]" file]]]]
[\\library
["[0]" /
["/[1]" // "_"
["[1][0]" module]]]]
["$[0]" /// "_"
["[1][0]" context]])
(def: .public test
Test
(<| (_.covering /._)
(do [! random.monad]
[.let [/ "/"
fs (file.mock /)]
context $///context.random
@module random.nat
@artifact random.nat
expected ($binary.random 1)]
(all _.and
(in (do [! async.monad]
[pre (# fs file? (/.path fs context @module @artifact))
_ (//module.enable! ! fs context @module)
write! (/.cache! fs context @module @artifact expected)
post (# fs file? (/.path fs context @module @artifact))
read! (/.cache fs context @module @artifact)]
(_.coverage' [/.path /.cache! /.cache]
(and (not pre)
(case write!
{try.#Success _} true
{try.#Failure _} false)
post
(case read!
{try.#Success actual} (binary#= expected actual)
{try.#Failure _} false)))))
))))
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