tests/HUnit.hs

   1 {-# LANGUAGE OverloadedStrings #-}
   2 module HUnit where
   3
   4 import Test.Tasty
   5 import Test.Tasty.HUnit
   6
   7 import Data.Foldable (Foldable(..))
   8 import Data.Function (($), (.))
   9 import Data.Functor ((<$>))
  10 import Data.Int (Int)
  11 import Data.Maybe (Maybe(..))
  12 import Data.Monoid (Monoid(..))
  13 import Data.Ord (Ord(..))
  14 import Data.Semigroup (Semigroup(..))
  15 import Data.String (String, IsString(..))
  16 import Prelude ((+))
  17 import Text.Show (Show(..))
  18 import qualified Data.List as List
  19
  20 import Symantic.Document.Lang
  21 import Symantic.Document.Plain
  22
  23 -- * Tests
  24 hunits :: TestTree
  25 hunits = testGroup "HUnit" $
  26  [ hunitPlain
  27  ]
  28
  29 hunitPlain :: TestTree
  30 hunitPlain = testList "Plain"
  31  [ newline ==> "\n"
  32  , "hello\nworld" ==> "hello\nworld"
  33  , 10`maxWidth` breakpoints ["hello", "world"] ==> "helloworld"
  34  ,  9`maxWidth` breakpoints ["hello", "world"] ==> "hello\nworld"
  35  ,  6`maxWidth` breakpoints ["he", "ll", "o!"] ==> "hello!"
  36  ,  6`maxWidth` breakpoints ["he", "ll", "o!", "wo", "rl", "d!"] ==> "hello!\nworld!"
  37  ,  5`maxWidth` breakpoints ["hello", "world"] ==> "hello\nworld"
  38  ,  5`maxWidth` breakpoints ["he", "llo", "world"] ==> "hello\nworld"
  39  ,  5`maxWidth` breakpoints ["he", "ll", "o!"] ==> "hell\no!"
  40  ,  4`maxWidth` breakpoints ["hello", "world"] ==> "hello\nworld"
  41  ,  4`maxWidth` breakpoints ["he", "ll", "o!"] ==> "hell\no!"
  42  ,  4`maxWidth` breakpoints ["he", "llo", "world"] ==> "he\nllo\nworld"
  43  ,  4`maxWidth` breakpoints ["he", "llo", "w", "orld"] ==> "he\nllow\norld"
  44  ,  4`maxWidth` breakpoints ["he", "ll", "o!", "wo", "rl", "d!"] ==> "hell\no!wo\nrld!"
  45  ,  3`maxWidth` breakpoints ["hello", "world"] ==> "hello\nworld"
  46  ,  3`maxWidth` breakpoints ["he", "ll"] ==> "he\nll"
  47  ,  3`maxWidth` breakpoints ["he", "ll", "o!"] ==> "he\nll\no!"
  48  ,  1`maxWidth` breakpoints ["he", "ll", "o!"] ==> "he\nll\no!"
  49  ,  4`maxWidth` mconcat ["__", align $ breakpoints ["he", "ll", "o!", "wo", "rl", "d!"]]
  50     ==> "__he\n  ll\n  o!\n  wo\n  rl\n  d!"
  51  ,  6`maxWidth` mconcat ["__", align $ breakpoints ["he", "ll", "o!", "wo", "rl", "d!"]]
  52     ==> "__hell\n  o!wo\n  rld!"
  53  , 16`maxWidth` mconcat ["__", listHorV ["hello", "world"]] ==> "__[hello, world]"
  54  ,  4`maxWidth` mconcat ["__", listHorV ["hello", "world"]] ==> "__[ hello\n  , world\n  ]"
  55  , 11`maxWidth` breakspaces ["hello", "world"] ==> "hello world"
  56  , 10`maxWidth` breakspaces ["hello", "world"] ==> "hello\nworld"
  57  ,  6`maxWidth` breakspaces ["hel", "lo", "wo", "rld"] ==> "hel lo\nwo rld"
  58  ,  6`maxWidth` breakspaces ["hel", "lo", "wo", "rld", "HEL", "LO", "WO", "RLD"] ==> "hel lo\nwo rld\nHEL LO\nWO RLD"
  59  ,  5`maxWidth` breakspaces ["hello", "world"] ==> "hello\nworld"
  60  , 19`maxWidth` fun (fun $ fun $ fun $ fun $ listHorV ["abcdefg", "abcdefg"])
  61    ==> "function(function(\n    function(\n      function(\n        function(\n          [ abcdefg\n          , abcdefg\n          ]\n          )\n        )\n      )\n    ))"
  62  , 19`maxWidth` fun (fun $ fun $ fun $ fun $ listHorV ["abcdefgh", "abcdefgh"])
  63    ==> "function(\n  function(\n    function(\n      function(\n        function(\n          [ abcdefgh\n          , abcdefgh\n          ]\n          )\n        )\n      )\n    )\n  )"
  64  , 7`maxWidth` ("hello"<>breakspace<>"world") ==> "hello\nworld"
  65  , 7`maxWidth` ("hello "<>"world") ==> "hello\nworld"
  66  , "  "<> "hello\nworld\n!" ==> "  hello\nworld\n!"
  67  , "__"<>align "hello\nworld\n!" ==> "__hello\n  world\n  !"
  68  , hang 2 "hello\nworld\n!" ==> "hello\n  world\n  !"
  69  , hang 2 "hello\nworld\n!"<>"\nhello\n!" ==> "hello\n  world\n  !\nhello\n!"
  70  , "let " <> align (catV $
  71              (\(name, typ) -> fill 6 name <+> "::" <+> typ)
  72              <$> [ ("abcdef","Doc")
  73                  , ("abcde","Int -> Doc -> Doc")
  74                  , ("abcdefghi","Doc") ])
  75    ==> "let abcdef :: Doc\n    abcde  :: Int -> Doc -> Doc\n    abcdefghi :: Doc"
  76  , "let " <> align (catV $
  77              (\(name, typ) -> fillOrBreak 6 name <> " ::" <+> typ)
  78              <$> [ ("abcdef","Doc")
  79                  , ("abcde","Int -> Doc -> Doc")
  80                  , ("abcdefghi","Doc") ])
  81    ==> "let abcdef :: Doc\n    abcde  :: Int -> Doc -> Doc\n    abcdefghi\n           :: Doc"
  82  , "let " <> align (catV $
  83              (\(name, typ) -> fillOrBreak 6 name <> " ::" <+> typ)
  84              <$> [("abcdefghi","Doc ->\nDoc")])
  85    ==> "let abcdefghi\n           :: Doc ->\n    Doc"
  86  , "let " <> align (catV $
  87              (\(name, typ) -> fillOrBreak 6 name <> align (" ::" <+> typ))
  88              <$> [("abcdefghi","Doc ->\nDoc")])
  89    ==> "let abcdefghi\n           :: Doc ->\n          Doc"
  90  , 10 `maxWidth` "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" ==> "1 2 3 4 5\n6 7 8 9 10\n11 12 13\n14 15"
  91  , 10 `maxWidth` "a b "<>"12"<>align (" 34 5")                 ==> "a b 12 34\n      5"
  92  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align "")       ==> "a b 12 34"
  93  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align " ")      ==> "a b 12 34 "
  94  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align " 5")     ==> "a b 12 34\n         5"
  95  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align " 56")    ==> "a b 12\n      34\n        56"
  96  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align " 567")   ==> "a b\n12 34 567"
  97  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align " 5678")  ==> "a b\n12 34 5678"
  98  , 10 `maxWidth` "a b "<>"12"<>align (" 34" <> align " 56789") ==> "a b\n12 34\n     56789"
  99  , 10 `maxWidth` ("1234567890" <> " ") <> "1" ==> "1234567890\n1"
 100  , 10 `maxWidth` nestedAlign  6 ==> "1 2 3 4 5\n         6"
 101  , 10 `maxWidth` nestedAlign  7 ==> "1 2 3 4\n       5\n        6\n         7"
 102  , 10 `maxWidth` nestedAlign  8 ==> "1 2 3\n     4\n      5\n       6\n        7\n         8"
 103  , 10 `maxWidth` nestedAlign  9 ==> "1 2\n   3\n    4\n     5\n      6\n       7\n        8\n         9"
 104  , 10 `maxWidth` nestedAlign 10 ==> "1\n 2\n  3\n   4\n    5\n     6\n      7\n       8\n        9\n         10"
 105  -- justify justifies
 106  , 10 `maxWidth` justify "1 2 3 4 5 6" ==> "1 2  3 4 5\n6"
 107  -- justify compresses spaces
 108  , 10 `maxWidth` justify "1 2 3 4  5 6" ==> "1 2  3 4 5\n6"
 109  , 10 `maxWidth` justify " 1 2 3 4 5 6 7 8 9" ==> " 1 2 3 4 5\n6 7 8 9"
 110  -- justify respects concatenating words
 111  , 10 `maxWidth` justify (setWidth (Just 11) ("1 2 3"<>"4 5 6 7")) ==> "1 2  34 5 6\n7"
 112  -- justify flushes the buffer before
 113  , 10 `maxWidth` "__" <> align (justify "1 2 3 4 5") ==> "__1 2  3 4\n  5"
 114  -- justify does not overflow the alignment
 115  , 10 `maxWidth` justify (nestedAlign 6) ==> "1 2 3 4 5\n         6"
 116  , 10 `maxWidth` justify ("a b c de " <> nestedAlign 2) ==> "a b  c  de\n1 2"
 117  , 10 `maxWidth` justify (bold ("12 34 56 78 "<> underline "90" <> " 123 456  789"))
 118    ==> "\ESC[1m12  34  56\n78 \ESC[4m90\ESC[0;1m  123\n456 789\ESC[0m"
 119  -- justify does not justify on explicit newlines
 120  , 10 `maxWidth` justify "1 2 3 4 5 6 7\n8 9 1 2 3 4 5" ==> "1 2  3 4 5\n6 7\n8 9  1 2 3\n4 5"
 121  -- align flushes the buffer
 122  , 10 `maxWidth` justify (ul ["1 2 3 4 5 6 7 8 9"])
 123    ==> "- 1 2  3 4\n\
 124        \  5 6  7 8\n\
 125        \  9"
 126  -- ul/ol is mempty when no item
 127  , ul [] ==> ""
 128  , ol [] ==> ""
 129  -- ul flushes the buffer
 130  , 10 `maxWidth` justify (let i = "1 2 3 4 5 6 7 8 9" in ul [i, i])
 131    ==> "- 1 2  3 4\n\
 132        \  5 6  7 8\n\
 133        \  9\n\
 134        \- 1 2  3 4\n\
 135        \  5 6  7 8\n\
 136        \  9"
 137  , 10 `maxWidth` justify (let i = "1 2 3 4 5 6 7 8 9" in
 138    ul [ul [i, i], ul [i, i]])
 139    ==> "- - 1 2  3\n\
 140        \    4 5  6\n\
 141        \    7 8 9\n\
 142        \  - 1 2  3\n\
 143        \    4 5  6\n\
 144        \    7 8 9\n\
 145        \- - 1 2  3\n\
 146        \    4 5  6\n\
 147        \    7 8 9\n\
 148        \  - 1 2  3\n\
 149        \    4 5  6\n\
 150        \    7 8 9"
 151  , 10 `maxWidth` justify (let i = "1 2 3 4 5 6 7 8 9" in
 152    ol [ol [i, i], ol [i, i]])
 153    ==> "1. 1. 1  2\n\
 154        \      3  4\n\
 155        \      5  6\n\
 156        \      7  8\n\
 157        \      9\n\
 158        \   2. 1  2\n\
 159        \      3  4\n\
 160        \      5  6\n\
 161        \      7  8\n\
 162        \      9\n\
 163        \2. 1. 1  2\n\
 164        \      3  4\n\
 165        \      5  6\n\
 166        \      7  8\n\
 167        \      9\n\
 168        \   2. 1  2\n\
 169        \      3  4\n\
 170        \      5  6\n\
 171        \      7  8\n\
 172        \      9"
 173  -- endline breakspaces
 174  , 10 `maxWidth` ("a"<>endline<>" b") ==> "a\nb"
 175  -- endline does no justify
 176  , 10 `maxWidth` justify ("a b"<>endline<>" c") ==> "a b\nc"
 177  -- endline works overflowed
 178  , 10 `maxWidth` justify ("abcdefghijk"<>endline<>" a") ==> "abcdefghijk\na"
 179  -- endline prints no nothing
 180  , 10 `maxWidth` justify ("12345678"<>endline<>"90ab"<>align (" cdefghijk cdefghijk"))
 181    ==> "1234567890ab\n\
 182        \              cdefghijk\n\
 183        \              cdefghijk"
 184  -- newline stops overflow
 185  , 10 `maxWidth` breakalt "fits" "over"<>"\n"<>"12345678901"
 186    ==> "fits\n\
 187        \12345678901"
 188  -- breakalt triggers only if its first argument overflows,
 189  -- not if what's next overflows.
 190  , 10 `maxWidth` spaces 2<>align(breakalt "fits" "over"<>newline<>"12345678901")
 191    ==> "  fits\n\
 192        \  12345678901"
 193  -- handle escaping correctly over custom indenting
 194  , 10 `maxWidth` setIndent (blue "X") 1 (red ("12"<>green "4\n5" <> "6"))
 195    ==> "\ESC[31m12\ESC[32m4\n\ESC[34mX\ESC[0;31;32m5\ESC[0;31m6\ESC[0m"
 196  , 10 `maxWidth` setIndent (blue "X") 1 (justify (red ("1 2 3 4"<>green " 5 6 " <> "7 ") <> "8"))
 197    ==> "\ESC[31m1 2  3 4\ESC[32m 5\n\ESC[34mX\ESC[0;31;32m6 \ESC[0;31m7 \ESC[0m8"
 198  -- breakspace backtracking is bounded by the removable indentation
 199  -- (hence it can actually wrap a few words in reasonable time).
 200  , 80 `maxWidth`
 201   "Lorem ipsum dolor sit amet,  Nulla nec tortor. Donec id elit quis purus\
 202   \ consectetur consequat. Nam congue semper tellus. Sed erat dolor,\
 203   \ dapibus sit amet, venenatis ornare, ultrices ut, nisi. Aliquam ante.\
 204   \ Suspendisse scelerisque dui nec velit. Duis augue augue, gravida euismod,\
 205   \ vulputate ac, facilisis id, sem. Morbi in orci. Nulla purus lacus,\
 206   \ pulvinar vel, malesuada ac, mattis nec, quam. Nam molestie scelerisque\
 207   \ quam. Nullam feugiat cursus lacus.orem ipsum dolor sit amet, consectetur\
 208   \ adipiscing elit. Donec libero risus, commodo vitae, pharetra mollis,\
 209   \ posuere eu, pede. Nulla nec tortor. Donec id elit quis purus consectetur\
 210   \ consequat. Nam congue semper tellus. Sed erat dolor, dapibus sit\
 211   \ amet, venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse\
 212   \ scelerisque dui nec velit. Duis augue augue, gravida euismod, vulputate ac,\
 213   \ facilisis id, sem. Morbi in orci. Nulla purus lacus, pulvinar vel,\
 214   \ malesuada ac, mattis nec, quam. Nam molestie scelerisque quam.\
 215   \ Nullam feugiat cursus lacus.orem ipsum dolor sit amet, consectetur\
 216   \ adipiscing elit. Donec libero risus, commodo vitae, pharetra mollis,\
 217   \ posuere eu, pede. Nulla nec tortor. Donec id elit quis purus consectetur\
 218   \ consequat. Nam congue semper tellus. Sed erat dolor, dapibus sit amet,\
 219   \ venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse\
 220   \ scelerisque dui nec velit. Duis augue augue, gravida euismod, vulputate ac,\
 221   \ facilisis id, sem. Morbi in orci. Nulla purus lacus, pulvinar vel,\
 222   \ malesuada ac, mattis nec, quam. Nam molestie scelerisque quam. Nullam\
 223   \ feugiat cursus lacus.orem ipsum dolor sit amet, consectetur adipiscing\
 224   \ elit. Donec libero risus, commodo vitae, pharetra mollis, posuere eu, pede.\
 225   \ Nulla nec tortor. Donec id elit quis purus consectetur consequat. Nam\
 226   \ congue semper tellus. Sed erat dolor, dapibus sit amet, venenatis ornare,\
 227   \ ultrices ut, nisi."
 228   ==> "Lorem ipsum dolor sit amet,  Nulla nec tortor. Donec id elit quis\
 229   \ purus\nconsectetur consequat. Nam congue semper tellus. Sed erat dolor, dapibus\
 230   \ sit\namet, venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse\
 231   \ scelerisque\ndui nec velit. Duis augue augue, gravida euismod, vulputate ac,\
 232   \ facilisis id,\nsem. Morbi in orci. Nulla purus lacus, pulvinar vel, malesuada\
 233   \ ac, mattis nec,\nquam. Nam molestie scelerisque quam. Nullam feugiat cursus\
 234   \ lacus.orem ipsum\ndolor sit amet, consectetur adipiscing elit. Donec libero\
 235   \ risus, commodo vitae,\npharetra mollis, posuere eu, pede. Nulla nec tortor.\
 236   \ Donec id elit quis purus\nconsectetur consequat. Nam congue semper tellus. Sed\
 237   \ erat dolor, dapibus sit\namet, venenatis ornare, ultrices ut, nisi. Aliquam\
 238   \ ante. Suspendisse scelerisque\ndui nec velit. Duis augue augue, gravida\
 239   \ euismod, vulputate ac, facilisis id,\nsem. Morbi in orci. Nulla purus lacus,\
 240   \ pulvinar vel, malesuada ac, mattis nec,\nquam. Nam molestie scelerisque quam.\
 241   \ Nullam feugiat cursus lacus.orem ipsum\ndolor sit amet, consectetur adipiscing\
 242   \ elit. Donec libero risus, commodo vitae,\npharetra mollis, posuere eu, pede.\
 243   \ Nulla nec tortor. Donec id elit quis purus\nconsectetur consequat. Nam congue\
 244   \ semper tellus. Sed erat dolor, dapibus sit\namet, venenatis ornare, ultrices\
 245   \ ut, nisi. Aliquam ante. Suspendisse scelerisque\ndui nec velit. Duis augue\
 246   \ augue, gravida euismod, vulputate ac, facilisis id,\nsem. Morbi in orci. Nulla\
 247   \ purus lacus, pulvinar vel, malesuada ac, mattis nec,\nquam. Nam molestie\
 248   \ scelerisque quam. Nullam feugiat cursus lacus.orem ipsum\ndolor sit amet,\
 249   \ consectetur adipiscing elit. Donec libero risus, commodo vitae,\npharetra\
 250   \ mollis, posuere eu, pede. Nulla nec tortor. Donec id elit quis\
 251   \ purus\nconsectetur consequat. Nam congue semper tellus. Sed erat dolor, dapibus\
 252   \ sit\namet, venenatis ornare, ultrices ut, nisi."
 253  , 80 `maxWidth` justify
 254   "Lorem ipsum dolor sit amet,  Nulla nec tortor. Donec id elit quis purus\
 255   \ consectetur consequat. Nam congue semper tellus. Sed erat dolor,\
 256   \ dapibus sit amet, venenatis ornare, ultrices ut, nisi. Aliquam ante.\
 257   \ Suspendisse scelerisque dui nec velit. Duis augue augue, gravida euismod,\
 258   \ vulputate ac, facilisis id, sem. Morbi in orci. Nulla purus lacus,\
 259   \ pulvinar vel, malesuada ac, mattis nec, quam. Nam molestie scelerisque\
 260   \ quam. Nullam feugiat cursus lacus.orem ipsum dolor sit amet, consectetur\
 261   \ adipiscing elit. Donec libero risus, commodo vitae, pharetra mollis,\
 262   \ posuere eu, pede. Nulla nec tortor. Donec id elit quis purus consectetur\
 263   \ consequat. Nam congue semper tellus. Sed erat dolor, dapibus sit\
 264   \ amet, venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse\
 265   \ scelerisque dui nec velit. Duis augue augue, gravida euismod, vulputate ac,\
 266   \ facilisis id, sem. Morbi in orci. Nulla purus lacus, pulvinar vel,\
 267   \ malesuada ac, mattis nec, quam. Nam molestie scelerisque quam.\
 268   \ Nullam feugiat cursus lacus.orem ipsum dolor sit amet, consectetur\
 269   \ adipiscing elit. Donec libero risus, commodo vitae, pharetra mollis,\
 270   \ posuere eu, pede. Nulla nec tortor. Donec id elit quis purus consectetur\
 271   \ consequat. Nam congue semper tellus. Sed erat dolor, dapibus sit amet,\
 272   \ venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse\
 273   \ scelerisque dui nec velit. Duis augue augue, gravida euismod, vulputate ac,\
 274   \ facilisis id, sem. Morbi in orci. Nulla purus lacus, pulvinar vel,\
 275   \ malesuada ac, mattis nec, quam. Nam molestie scelerisque quam. Nullam\
 276   \ feugiat cursus lacus.orem ipsum dolor sit amet, consectetur adipiscing\
 277   \ elit. Donec libero risus, commodo vitae, pharetra mollis, posuere eu, pede.\
 278   \ Nulla nec tortor. Donec id elit quis purus consectetur consequat. Nam\
 279   \ congue semper tellus. Sed erat dolor, dapibus sit amet, venenatis ornare,\
 280   \ ultrices ut, nisi."
 281   ==> "Lorem ipsum  dolor sit  amet,  Nulla  nec  tortor.  Donec  id  elit  quis  purus\n\
 282   \consectetur consequat.  Nam congue  semper tellus.  Sed erat  dolor, dapibus sit\n\
 283   \amet, venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse scelerisque\n\
 284   \dui nec  velit. Duis  augue augue,  gravida euismod, vulputate ac, facilisis id,\n\
 285   \sem. Morbi  in orci.  Nulla purus lacus, pulvinar vel, malesuada ac, mattis nec,\n\
 286   \quam. Nam  molestie scelerisque  quam. Nullam  feugiat cursus  lacus.orem  ipsum\n\
 287   \dolor sit  amet, consectetur adipiscing elit. Donec libero risus, commodo vitae,\n\
 288   \pharetra mollis,  posuere eu,  pede. Nulla  nec tortor. Donec id elit quis purus\n\
 289   \consectetur consequat.  Nam congue  semper tellus.  Sed erat  dolor, dapibus sit\n\
 290   \amet, venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse scelerisque\n\
 291   \dui nec  velit. Duis  augue augue,  gravida euismod, vulputate ac, facilisis id,\n\
 292   \sem. Morbi  in orci.  Nulla purus lacus, pulvinar vel, malesuada ac, mattis nec,\n\
 293   \quam. Nam  molestie scelerisque  quam. Nullam  feugiat cursus  lacus.orem  ipsum\n\
 294   \dolor sit  amet, consectetur adipiscing elit. Donec libero risus, commodo vitae,\n\
 295   \pharetra mollis,  posuere eu,  pede. Nulla  nec tortor. Donec id elit quis purus\n\
 296   \consectetur consequat.  Nam congue  semper tellus.  Sed erat  dolor, dapibus sit\n\
 297   \amet, venenatis ornare, ultrices ut, nisi. Aliquam ante. Suspendisse scelerisque\n\
 298   \dui nec  velit. Duis  augue augue,  gravida euismod, vulputate ac, facilisis id,\n\
 299   \sem. Morbi  in orci.  Nulla purus lacus, pulvinar vel, malesuada ac, mattis nec,\n\
 300   \quam. Nam  molestie scelerisque  quam. Nullam  feugiat cursus  lacus.orem  ipsum\n\
 301   \dolor sit  amet, consectetur adipiscing elit. Donec libero risus, commodo vitae,\n\
 302   \pharetra mollis,  posuere eu,  pede. Nulla  nec tortor. Donec id elit quis purus\n\
 303   \consectetur consequat.  Nam congue  semper tellus.  Sed erat  dolor, dapibus sit\n\
 304   \amet, venenatis ornare, ultrices ut, nisi."
 305  ]
 306         where
 307         (==>) :: IsString d => d ~ String => Plain d -> d -> Assertion; infix 0 ==>
 308         p ==> exp = got @?= exp
 309                 where got = runPlain p
 310
 311 testList :: String -> [Assertion] -> TestTree
 312 testList n as = testGroup n $ List.zipWith testCase (show <$> [1::Int ..]) as
 313
 314 breakpoints :: Wrappable d => Monoid d => [d] -> d
 315 breakpoints = intercalate breakpoint
 316
 317 breakspaces :: Wrappable d => Monoid d => [d] -> d
 318 breakspaces = intercalate breakspace
 319
 320 infix 1 `maxWidth`
 321 maxWidth :: Wrappable d => Width -> d -> d
 322 maxWidth = setWidth . Just
 323
 324 nestedAlign ::
 325  From (Line String) d =>
 326  Spaceable d => Indentable d => Wrappable d =>
 327  Int -> d
 328 nestedAlign n = go 1
 329         where
 330         go i =
 331                 from (Line (show i)) <>
 332                 (if n <= i then mempty
 333                 else align (breakspace <> go (i+1)))
 334
 335 listHorV :: IsString d => Indentable d => Wrappable d => [d] -> d
 336 listHorV [] = "[]"
 337 listHorV [d] = "["<>d<>"]"
 338 listHorV ds =
 339         breakalt
 340          ("[" <> intercalate ("," <> space) ds <> "]")
 341          (align $ "[" <> space
 342                  <> foldr1 (\a acc -> a <> newline <> "," <> space <> acc) ds
 343                  <> newline <> "]")
 344
 345 fun :: IsString d => Indentable d => Wrappable d => d -> d
 346 fun d = "function(" <> incrIndent (spaces 2) 2 (breakalt d (newline<>d<>newline)) <> ")"
 347