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import Test.Framework (defaultMain, testGroup)
import Test.Framework.Providers.QuickCheck2
import Test.Framework.Providers.HUnit
import Test.QuickCheck
import Test.HUnit
import Data.Char
import Text.Hakyll.CompressCSS
import Text.Hakyll.Util
main = defaultMain tests
tests = [ testGroup "Util group" [ testProperty "trim length" prop_trim_length
, testProperty "trim id" prop_trim_id
, testProperty "trim empty" prop_trim_empty
, testCase "stripHTML 1" test_strip_html1
, testCase "stripHTML 2" test_strip_html2
, testCase "stripHTML 3" test_strip_html3
, testCase "split 1" test_split1
, testCase "split 2" test_split2
]
, testGroup "CompressCSS group" [ testProperty "compressCSS length" prop_compress_css_length
, testCase "compressCSS 1" test_compress_css1
, testCase "compressCSS 2" test_compress_css2
, testCase "compressCSS 3" test_compress_css3
]
]
-- Test that a string always becomes shorter when trimmed.
prop_trim_length str = length str >= length (trim str)
-- Check that a string which does not start or end with a space is not trimmed.
prop_trim_id str = (not $ null str)
&& (not $ isSpace $ head str)
&& (not $ isSpace $ last str)
==> str == (trim str)
-- An string of only spaces should be reduced to an empty string.
prop_trim_empty str = (all isSpace str) ==> null (trim str)
-- Strip HTML test cases.
test_strip_html1 = stripHTML "<b>text</b>" @?= "text"
test_strip_html2 = stripHTML "text" @?= "text"
test_strip_html3 = stripHTML "<b>Hakyll</b> is an <i>awesome</i> web framework <img src=\"foo.png\" />" @?=
"Hakyll is an awesome web framework "
-- Split test cases.
test_split1 = split "," "1,2,3" @?= ["1", "2", "3"]
test_split2 = split "," ",1,2," @?= ["1", "2"]
-- CSS compression should always decrease the text length.
prop_compress_css_length str = length str >= length (compressCSS str)
-- Compress CSS test cases.
test_compress_css1 = compressCSS "a { \n color : red; }" @?= "a{color:red}"
test_compress_css2 = compressCSS "img {border :none;;;; }" @?= "img{border:none}"
test_compress_css3 = compressCSS "p {font-size : 90%;} h1 {color :white;;; }" @?= "p{font-size:90%}h1{color:white}"
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