blob: 3c6bfd2348ff1705a1870b37c0287b16a7e9b1d3 (
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
|
(.module:
[lux #*
[control
[monad (#+ do Monad)]
[equivalence (#+ Equivalence)]]
[data
["." bit]
["." maybe]
[number
["." int ("#/." number)]]
["." text
format]
[collection
["." list]]]
[math
["r" random]]
["." macro
[poly (#+ derived:)
["&" equivalence]]]]
lux/test)
(type: Variant
(#Case0 Bit)
(#Case1 Int)
(#Case2 Frac))
(type: #rec Recursive
(#Number Frac)
(#Addition Frac Recursive))
(type: Record
{#bit Bit
#int Int
#frac Frac
#text Text
#maybe (Maybe Int)
#list (List Int)
#variant Variant
#tuple [Int Frac Text]
#recursive Recursive})
(def: gen-recursive
(r.Random Recursive)
(r.rec (function (_ gen-recursive)
(r.or r.frac
(r.and r.frac gen-recursive)))))
(def: gen-record
(r.Random Record)
(do r.monad
[size (:: @ map (n/% 2) r.nat)
#let [gen-int (|> r.int (:: @ map (|>> int/abs (i/% +1_000_000))))]]
($_ r.and
r.bit
gen-int
r.frac
(r.unicode size)
(r.maybe gen-int)
(r.list size gen-int)
($_ r.or r.bit gen-int r.frac)
($_ r.and gen-int r.frac (r.unicode size))
gen-recursive)))
(derived: (&.Equivalence<?> Record))
(context: "Equivalence polytypism"
(<| (times 100)
(do @
[sample gen-record
#let [(^open "&/.") ..equivalence]]
(test "Every instance equals itself."
(&/= sample sample)))))
|
