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|
(.module:
[library
[lux "*"
["_" test {"+" [Test]}]
[abstract
[monad {"+" [do]}]
["[0]" predicate]
[\\specification
["$[0]" equivalence]
["$[0]" hash]
["$[0]" order]
["$[0]" enum]
["$[0]" codec]]]
[control
["[0]" try ("[1]\[0]" functor)]
["[0]" exception]]
[data
[collection
["[0]" set]
["[0]" list ("[1]\[0]" functor mix)]]]
[math
["[0]" random {"+" [Random]}]
[number
["n" nat]]]]]
[\\library
["[0]" /
[//
["[0]" duration]]]])
(def: .public random
(Random /.Month)
(let [december (/.number #/.December)]
(|> random.nat
(\ random.monad each (|>> (n.% december) ++))
(random.one (|>> /.by_number try.maybe)))))
(def: .public test
Test
(<| (_.covering /._)
(_.for [/.Month])
($_ _.and
(_.for [/.equivalence]
($equivalence.spec /.equivalence ..random))
(_.for [/.hash]
($hash.spec /.hash ..random))
(_.for [/.order]
($order.spec /.order ..random))
(_.for [/.enum]
($enum.spec /.enum ..random))
(_.for [/.codec]
($codec.spec /.equivalence /.codec ..random))
(do random.monad
[expected ..random
invalid (random.only (predicate.or (n.< (/.number #/.January))
(n.> (/.number #/.December)))
random.nat)]
($_ _.and
(_.cover [/.number /.by_number]
(|> expected
/.number
/.by_number
(try\each (\ /.equivalence = expected))
(try.else false)))
(_.cover [/.invalid_month]
(case (/.by_number invalid)
{#try.Failure error}
(exception.match? /.invalid_month error)
{#try.Success _}
false))
(_.cover [/.year]
(let [all (list.size /.year)
uniques (set.size (set.of_list /.hash /.year))]
(and (n.= (/.number #/.December)
all)
(n.= all
uniques))))
(_.cover [/.days]
(let [expected (.nat (duration.ticks duration.day duration.normal_year))]
(|> /.year
(list\each /.days)
(list\mix n.+ 0)
(n.= expected))))
(_.cover [/.leap_year_days]
(let [expected (.nat (duration.ticks duration.day duration.leap_year))]
(|> /.year
(list\each /.leap_year_days)
(list\mix n.+ 0)
(n.= expected))))
(do random.monad
[not_a_month (random.ascii/upper 1)]
(_.cover [/.not_a_month_of_the_year]
(case (\ /.codec decoded not_a_month)
{#try.Failure error}
(exception.match? /.not_a_month_of_the_year error)
{#try.Success _}
false)))
)))))
|
