(.module:
  [library
   [lux #*
    ["_" test (#+ Test)]
    [abstract
     [monad (#+ do)]
     [\\specification
      ["$." equivalence]]]
    [control
     ["." try ("#\." functor)]
     [parser
      ["<.>" text]]]
    [math
     ["." random (#+ Random)]]]]
  [\\program
   ["." /]]
  ["$." /// #_
   ["#." time]])

(def: .public random
  (Random /.Time)
  $///time.random)

(def: .public test
  Test
  (<| (_.covering /._)
      (_.for [/.Time])
      ($_ _.and
          (_.for [/.equivalence]
                 ($equivalence.spec /.equivalence ..random))

          (do random.monad
            [expected ..random]
            ($_ _.and
                (_.cover [/.format /.parser]
                         (|> expected
                             /.format
                             (<text>.result /.parser)
                             (try\each (\ /.equivalence = expected))
                             (try.else false)))
                ))
          )))