aboutsummaryrefslogtreecommitdiff
path: root/stdlib/source/test/lux/time/month.lux
blob: 751d0f3f7b4576ffe0fba58a9870d5db961fe771 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
(.require
 [library
  [lux (.except)
   ["_" test (.only Test)]
   [abstract
    [monad (.only do)]
    ["[0]" predicate]
    [\\specification
     ["$[0]" equivalence]
     ["$[0]" hash]
     ["$[0]" order]
     ["$[0]" enum]
     ["$[0]" codec]]]
   [control
    ["[0]" try (.use "[1]#[0]" functor)]
    ["[0]" exception]]
   [data
    [collection
     ["[0]" set]
     ["[0]" list (.use "[1]#[0]" functor mix)]]]
   [math
    ["[0]" random (.only Random)]
    [number
     ["n" nat]]]]]
 [\\library
  ["[0]" / (.only)
   [//
    ["[0]" duration]]]])

(def .public random
  (Random /.Month)
  (let [december (/.number {/.#December})]
    (|> random.nat
        (at random.monad each (|>> (n.% december) ++))
        (random.one (|>> /.by_number try.maybe)))))

(def .public test
  Test
  (<| (_.covering /._)
      (_.for [/.Month])
      (all _.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)]
             (all _.and
                  (_.coverage [/.number /.by_number]
                    (|> expected
                        /.number
                        /.by_number
                        (try#each (at /.equivalence = expected))
                        (try.else false)))
                  (_.coverage [/.invalid_month]
                    (case (/.by_number invalid)
                      {try.#Failure error}
                      (exception.match? /.invalid_month error)
                      
                      {try.#Success _}
                      false))
                  (_.coverage [/.year]
                    (let [all (list.size /.year)
                          uniques (set.size (set.of_list /.hash /.year))]
                      (and (n.= (/.number {/.#December})
                                all)
                           (n.= all
                                uniques))))
                  (_.coverage [/.days]
                    (let [expected (.nat (duration.ticks duration.day duration.normal_year))]
                      (|> /.year
                          (list#each /.days)
                          (list#mix n.+ 0)
                          (n.= expected))))
                  (_.coverage [/.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.upper_case 1)]
                    (_.coverage [/.not_a_month_of_the_year]
                      (case (at /.codec decoded not_a_month)
                        {try.#Failure error}
                        (exception.match? /.not_a_month_of_the_year error)
                        
                        {try.#Success _}
                        false)))
                  )))))