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1 | -module(hope_option_SUITE). |
2 | ||
3 | %% Callbacks | |
4 | -export( | |
5 | [ all/0 | |
6 | , groups/0 | |
7 | ]). | |
8 | ||
9 | %% Test cases | |
10 | -export( | |
11 | [ t_of_result/1 | |
f2e1fffc | 12 | , t_of_undefined/1 |
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13 | , t_put/1 |
14 | , t_get/1 | |
15 | , t_map/1 | |
16 | , t_iter/1 | |
4af0774b | 17 | , t_pipe/1 |
2dc71691 SK |
18 | ]). |
19 | ||
20 | ||
21 | -define(GROUP, option). | |
22 | ||
23 | ||
24 | %% ============================================================================ | |
25 | %% Common Test callbacks | |
26 | %% ============================================================================ | |
27 | ||
28 | all() -> | |
29 | [ {group, ?GROUP} | |
30 | ]. | |
31 | ||
32 | groups() -> | |
33 | Tests = | |
34 | [ t_of_result | |
f2e1fffc | 35 | , t_of_undefined |
2dc71691 SK |
36 | , t_put |
37 | , t_get | |
38 | , t_map | |
39 | , t_iter | |
4af0774b | 40 | , t_pipe |
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41 | ], |
42 | Properties = [parallel], | |
43 | [ {?GROUP, Properties, Tests} | |
44 | ]. | |
45 | ||
46 | ||
47 | %% ============================================================================= | |
48 | %% Test cases | |
49 | %% ============================================================================= | |
50 | ||
51 | t_put(_Cfg) -> | |
52 | IsFoo = fun (foo) -> true; (_) -> false end, | |
53 | {some, foo} = hope_option:put(foo, IsFoo), | |
54 | none = hope_option:put(bar, IsFoo). | |
55 | ||
56 | t_get(_Cfg) -> | |
57 | foo = hope_option:get({some, foo}, bar), | |
58 | bar = hope_option:get(none , bar). | |
59 | ||
60 | t_map(_Cfg) -> | |
61 | FooToBar = fun (foo) -> bar end, | |
62 | {some, bar} = hope_option:map({some, foo}, FooToBar), | |
63 | none = hope_option:map(none , FooToBar). | |
64 | ||
65 | t_iter(_Cfg) -> | |
66 | Key = key, | |
67 | Put = fun (Val) -> _ = put(Key, Val), ok end, | |
68 | Get = fun () -> get(Key) end, | |
69 | Val = foo, | |
70 | ok = hope_option:iter(none , Put), | |
71 | undefined = Get(), | |
72 | ok = hope_option:iter({some, Val}, Put), | |
73 | Val = Get(). | |
74 | ||
75 | t_of_result(_Cfg) -> | |
76 | Foo = foo, | |
77 | Bar = bar, | |
78 | ResultOk = {ok, Foo}, | |
79 | ResultError = {error, Bar}, | |
80 | {some, Foo} = hope_option:of_result(ResultOk), | |
81 | none = hope_option:of_result(ResultError). | |
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82 | |
83 | t_pipe(_Cfg) -> | |
84 | Steps = | |
85 | [ fun (0) -> hope_option:return(1); (_) -> none end | |
86 | , fun (1) -> hope_option:return(2); (_) -> none end | |
87 | , fun (2) -> hope_option:return(3); (_) -> none end | |
88 | ], | |
89 | {some, 3} = hope_option:pipe(Steps, 0), | |
90 | none = hope_option:pipe(Steps, 1), | |
91 | none = hope_option:pipe(Steps, 2), | |
92 | none = hope_option:pipe(Steps, 3). | |
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93 | |
94 | t_of_undefined(_Cfg) -> | |
95 | Foo = foo, | |
96 | Bar = bar, | |
97 | Baz = baz, | |
98 | {some, Foo} = hope_option:of_undefined(Foo), | |
99 | {some, Bar} = hope_option:of_undefined(Bar), | |
100 | {some, Baz} = hope_option:of_undefined(Baz), | |
101 | none = hope_option:of_undefined(undefined). |