blob: cd2f884856398ae3a5f6285c9b792e46a1adfa77 (
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
|
(.module:
[library
[lux #*
["_" test (#+ Test)]
[abstract
[monad (#+ do)]]
[control
[io (#+ IO)]
["." try]
[concurrency
["." async (#+ Async)]]]
[data
["." text
["%" format (#+ format)]]]
[math
["." random]]]]
[\\library
["." /]])
(def: #export (spec console)
(-> (IO (/.Console Async)) Test)
(do random.monad
[message (random.ascii/alpha 10)]
(wrap (do async.monad
[console (async.future console)
?write (\ console write (format message text.new_line))
?read (\ console read [])
?read_line (\ console read_line [])
?close/good (\ console close [])
?close/bad (\ console close [])
#let [can_write!
(case ?write
(#try.Success _)
true
_
false)
can_read!
(case [?read ?read_line]
[(#try.Success _) (#try.Success _)]
true
_
false)
can_close!
(case [?close/good ?close/bad]
[(#try.Success _) (#try.Failure _)]
true
_
false)]]
(_.cover' [/.Console]
(and can_write!
can_read!
can_close!))))))
|