summaryrefslogtreecommitdiffhomepage
path: root/tests/Language/Haskell/Stylish/Step/SimpleAlign/Tests.hs
blob: 5b502d1822666c395b741d5b2d706e0667093598 (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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
--------------------------------------------------------------------------------
{-# LANGUAGE OverloadedLists #-}
module Language.Haskell.Stylish.Step.SimpleAlign.Tests
    ( tests
    ) where


--------------------------------------------------------------------------------
import           Test.Framework                            (Test, testGroup)
import           Test.Framework.Providers.HUnit            (testCase)
import           Test.HUnit                                (Assertion)


--------------------------------------------------------------------------------
import           Language.Haskell.Stylish.Step.SimpleAlign
import           Language.Haskell.Stylish.Tests.Util


--------------------------------------------------------------------------------
tests :: Test
tests = testGroup "Language.Haskell.Stylish.Step.SimpleAlign.Tests"
    [ testCase "case 01" case01
    , testCase "case 02" case02
    , testCase "case 03" case03
    , testCase "case 04" case04
    , testCase "case 05" case05
    , testCase "case 06" case06
    , testCase "case 07" case07
    , testCase "case 08" case08
    , testCase "case 09" case09
    , testCase "case 10" case10
    , testCase "case 11" case11
    , testCase "case 12" case12
    , testCase "case 13" case13
    ]


--------------------------------------------------------------------------------
case01 :: Assertion
case01 = assertSnippet (step (Just 80) defaultConfig)
    [ "eitherToMaybe e = case e of"
    , "    Left _ -> Nothing"
    , "    Right x -> Just x"
    ]
    [ "eitherToMaybe e = case e of"
    , "    Left _  -> Nothing"
    , "    Right x -> Just x"
    ]


--------------------------------------------------------------------------------
case02 :: Assertion
case02 = assertSnippet (step (Just 80) defaultConfig)
    [ "eitherToMaybe (Left _) = Nothing"
    , "eitherToMaybe (Right x) = Just x"
    ]
    [ "eitherToMaybe (Left _)  = Nothing"
    , "eitherToMaybe (Right x) = Just x"
    ]


--------------------------------------------------------------------------------
case03 :: Assertion
case03 = assertSnippet (step (Just 80) defaultConfig)
    [ "heady def [] = def"
    , "heady _ (x : _) = x"
    ]
    [ "heady def []    = def"
    , "heady _ (x : _) = x"
    ]


--------------------------------------------------------------------------------
case04 :: Assertion
case04 = assertSnippet (step (Just 80) defaultConfig)
    [ "data Foo = Foo"
    , "    { foo :: Int"
    , "    , barqux :: String"
    , "    } deriving (Show)"
    ]
    [ "data Foo = Foo"
    , "    { foo    :: Int"
    , "    , barqux :: String"
    , "    } deriving (Show)"
    ]


--------------------------------------------------------------------------------
case05 :: Assertion
case05 = assertSnippet (step (Just 80) defaultConfig) input input
  where
    -- Don't attempt to align this since a field spans multiple lines
    input =
        [ "data Foo = Foo"
        , "    { foo :: Int"
        , "    , barqux"
        , "         :: String"
        , "    } deriving (Show)"
        ]


--------------------------------------------------------------------------------
case06 :: Assertion
case06 = assertSnippet
    -- 22 max columns is /just/ enough to align this stuff.
    (step (Just 22) defaultConfig)
    [ "data Foo = Foo"
    , "    { foo :: String"
    , "    , barqux :: Int"
    , "    }"
    ]
    [ "data Foo = Foo"
    , "    { foo    :: String"
    , "    , barqux :: Int"
    , "    }"
    ]


--------------------------------------------------------------------------------
case07 :: Assertion
case07 = assertSnippet
    -- 21 max columns is /just NOT/ enough to align this stuff.
    (step (Just 21) defaultConfig)
    [ "data Foo = Foo"
    , "    { foo :: String"
    , "    , barqux :: Int"
    , "    }"
    ]
    [ "data Foo = Foo"
    , "    { foo :: String"
    , "    , barqux :: Int"
    , "    }"
    ]


--------------------------------------------------------------------------------
case08 :: Assertion
case08 = assertSnippet (step (Just 80) defaultConfig)
    [ "canDrink mbAge = case mbAge of"
    , "    Just age | age > 18 -> True"
    , "    _ -> False"
    ]
    [ "canDrink mbAge = case mbAge of"
    , "    Just age | age > 18 -> True"
    , "    _                   -> False"
    ]


--------------------------------------------------------------------------------
case09 :: Assertion
case09 = assertSnippet (step Nothing defaultConfig)
    [ "data Foo = Foo"
    , "    { foo :: String"
    , "    , barqux :: Int"
    , "    }"
    ]
    [ "data Foo = Foo"
    , "    { foo    :: String"
    , "    , barqux :: Int"
    , "    }"
    ]


--------------------------------------------------------------------------------
case10 :: Assertion
case10 = assertSnippet (step Nothing defaultConfig)
    [ "padQual  = case align' of"
    , "  Global -> True"
    , "  File    -> fileAlign"
    , "  Group    -> anyQual"
    ]
    [ "padQual  = case align' of"
    , "  Global -> True"
    , "  File   -> fileAlign"
    , "  Group  -> anyQual"
    ]


--------------------------------------------------------------------------------
case11 :: Assertion
case11 = assertSnippet (step Nothing defaultConfig)
    [ "data Foo = Foo"
    , "    { foo  :: String"
    , "    , barqux  :: !Int"
    , "    }"
    ]
    [ "data Foo = Foo"
    , "    { foo    :: String"
    , "    , barqux :: !Int"
    , "    }"
    ]


--------------------------------------------------------------------------------
case12 :: Assertion
case12 = assertSnippet (step Nothing defaultConfig {cCases = False}) input input
  where
    input =
        [ "case x of"
        , "  Just y -> 1"
        , "  Nothing -> 2"
        ]


--------------------------------------------------------------------------------
case13 :: Assertion
case13 = assertSnippet (step Nothing defaultConfig)
    [ "cond n = if"
    , "    | n < 10, x <- 1 -> x"
    , "    | otherwise -> 2"
    ]
    [ "cond n = if"
    , "    | n < 10, x <- 1 -> x"
    , "    | otherwise      -> 2"
    ]