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module Util
( utilGroup
) where
import Data.Char
import Test.QuickCheck
import Test.Framework (testGroup)
import Test.Framework.Providers.HUnit
import Test.Framework.Providers.QuickCheck2
import Test.HUnit
import Text.Hakyll.Util
-- Util test group.
utilGroup = testGroup "Util"
[ testProperty "prop_trim_length" prop_trim_length
, testProperty "prop_trim_id" prop_trim_id
, testProperty "prop_stripHtml_length" prop_stripHtml_length
, testProperty "prop_stripHtml_id" prop_stripHtml_id
, testCase "test_stripHtml_1" test_stripHtml_1
, testCase "test_stripHtml_2" test_stripHtml_2
, testCase "test_stripHtml_3" test_stripHtml_3
, testCase "test_link_1" test_link_1
, testCase "test_link_2" test_link_2
]
-- 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) && isAlreadyTrimmed ==> str == (trim str)
where
isAlreadyTrimmed :: Bool
isAlreadyTrimmed = (not $ isSpace $ head str) && (not $ isSpace $ last str)
-- Check that a stripped string is shorter.
prop_stripHtml_length str = length str >= length (stripHtml str)
-- Check that strings without tags remain untouched.
prop_stripHtml_id str = (not $ any (`elem` ['>', '<']) str)
==> str == stripHtml str
-- Strip Html test cases.
test_stripHtml_1 = stripHtml "<b>text</b>" @?= "text"
test_stripHtml_2 = stripHtml "text" @?= "text"
test_stripHtml_3 =
stripHtml "<b>Hakyll</b>, a <i>website</i> generator<img src=\"foo.png\" />"
@?= "Hakyll, a website generator"
-- Link test cases.
test_link_1 = link "foo bar" "/foo/bar.html"
@?= "<a href=\"/foo/bar.html\">foo bar</a>"
test_link_2 = link "back home" "/" @?= "<a href=\"/\">back home</a>"
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