(.module:
  [library
   [lux "*"
    ["_" test {"+" [Test]}]
    [abstract
     [monad {"+" [do]}]]
    [control
     ["[0]" try ("[1]\[0]" functor)]
     [parser
      ["[0]" environment]]
     [concurrency
      ["[0]" async]]]
    [data
     ["[0]" binary ("[1]\[0]" equivalence)]
     [text
      [encoding
       ["[0]" utf8]]]]
    [math
     ["[0]" random]]
    [world
     ["[0]" file]
     ["[0]" program]]]]
  [\\program
   ["[0]" /]])

(def: .public test
  Test
  (<| (_.covering /._)
      (do [! random.monad]
        [/ (random.ascii/upper 1)
         home (random.ascii/lower 10)
         working_directory (random.ascii/lower 10)
         .let [fs (file.mock /)
               program (program.async (program.mock environment.empty home working_directory))
               repo (/.repository program fs)]

         uri (random.ascii/lower 10)
         expected (\ ! each (\ utf8.codec encoded)
                     (random.ascii/lower 10))]
        ($_ _.and
            (in (do async.monad
                  [before_upload (\ repo download uri)
                   _ (\ repo upload uri expected)
                   actual (\ repo download uri)]
                  (_.cover' [/.repository]
                            (and (case before_upload
                                   {#try.Success _} false
                                   {#try.Failure _} true)
                                 (|> actual
                                     (try\each (binary\= expected))
                                     (try.else false))))))
            ))))