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|
(.module:
[library
[lux #*
["_" test (#+ Test)]
[abstract
[monad (#+ do)]]
[control
["." io]
["." try (#+ Try)]
["." exception (#+ exception:)]]
[data
["." text ("#\." equivalence)
["%" format (#+ format)]]]
[math
["." random]]]]
[\\library
["." /]]
[\\spec
["$." /]])
(exception: dead)
(def: mock
(/.Mock [Bit Text])
(implementation
(def: (on_read [dead? content])
(do try.monad
[char (try.from_maybe (text.nth 0 content))
[_ content] (try.from_maybe (text.split 1 content))]
(if dead?
(exception.throw ..dead [])
(wrap [[dead? content] char]))))
(def: (on_read_line [dead? content])
(do try.monad
[[line content] (try.from_maybe (text.split_with text.new_line content))]
(if dead?
(exception.throw ..dead [])
(wrap [[dead? content] line]))))
(def: (on_write message [dead? content])
(if dead?
(exception.throw ..dead [])
(#try.Success [dead? (format content message)])))
(def: (on_close [dead? content])
(if dead?
(exception.throw ..dead [])
(#try.Success [true content])))))
(def: #export test
Test
(<| (_.covering /._)
($_ _.and
(_.for [/.async /.mock /.Mock]
($/.spec (io.io (/.async (/.mock ..mock [false ""])))))
(do random.monad
[expected (random.ascii/alpha 10)
#let [console (/.mock ..mock [false ""])]]
(_.cover [/.write_line]
(io.run
(do io.monad
[?_ (/.write_line expected console)
?actual (\ console read_line [])]
(wrap (<| (try.default false)
(do try.monad
[_ ?_
actual ?actual]
(wrap (text\= expected actual)))))))))
)))
|
