{-# LANGUAGE OverloadedStrings #-} {- | Module : Tests.Readers.HTML Copyright : © 2006-2021 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane Stability : alpha Portability : portable Tests for the HTML reader. -} module Tests.Readers.HTML (tests) where import Data.Text (Text) import qualified Data.Text as T import Test.Tasty import Test.Tasty.QuickCheck import Test.Tasty.Options (IsOption(defaultValue)) import Tests.Helpers import Text.Pandoc import Text.Pandoc.Shared (isHeaderBlock) import Text.Pandoc.Arbitrary () import Text.Pandoc.Builder import Text.Pandoc.Walk (walk) html :: Text -> Pandoc html = purely $ readHtml def htmlNativeDivs :: Text -> Pandoc htmlNativeDivs = purely $ readHtml def { readerExtensions = enableExtension Ext_native_divs $ readerExtensions def } makeRoundTrip :: Block -> Block makeRoundTrip CodeBlock{} = Para [Str "code block was here"] makeRoundTrip LineBlock{} = Para [Str "line block was here"] makeRoundTrip RawBlock{} = Para [Str "raw block was here"] makeRoundTrip (Div attr bs) = Div attr $ filter (not . isHeaderBlock) bs -- avoids round-trip failures related to makeSections -- e.g. with [Div ("loc",[],[("a","11"),("b_2","a b c")]) [Header 3 ("",[],[]) []]] makeRoundTrip Table{} = Para [Str "table block was here"] makeRoundTrip x = x removeRawInlines :: Inline -> Inline removeRawInlines RawInline{} = Str "raw inline was here" removeRawInlines x = x roundTrip :: Blocks -> Bool roundTrip b = d'' == d''' where d = walk removeRawInlines $ walk makeRoundTrip $ Pandoc nullMeta $ toList b d' = rewrite d d'' = rewrite d' d''' = rewrite d'' rewrite = html . (`T.snoc` '\n') . purely (writeHtml5String def { writerWrapText = WrapPreserve }) tests :: [TestTree] tests = [ testGroup "base tag" [ test html "simple" $ " $\"Stickman\"$ " =?> plain (image "http://www.w3schools.com/images/stickman.gif" "" (text "Stickman")) , test html "slash at end of base" $ " $\"Stickman\"$ " =?> plain (image "http://www.w3schools.com/images/stickman.gif" "" (text "Stickman")) , test html "slash at beginning of href" $ " $\"Stickman\"$ " =?> plain (image "http://www.w3schools.com/stickman.gif" "" (text "Stickman")) , test html "absolute URL" $ " $\"Stickman\"$ " =?> plain (image "http://example.com/stickman.gif" "" (text "Stickman")) ] , testGroup "anchors" [ test html "anchor without href" $ "" =?> plain (spanWith ("anchor",[],[]) mempty) ] , testGroup "lang" [ test html "lang on " $ "hola" =?> setMeta "lang" (text "es") (doc (plain (text "hola"))) , test html "xml:lang on " $ "hola" =?> setMeta "lang" (text "es") (doc (plain (text "hola"))) ] , testGroup "main" [ test htmlNativeDivs "

" =?> doc (divWith ("", [], [("role", "main")]) (plain (text "hello"))) , test htmlNativeDivs "

" =?> doc (divWith ("", [], [("role", "foobar")]) (plain (text "hello"))) , test htmlNativeDivs "

has attributes preserved" $ "

" =?> doc (divWith ("foo", ["bar"], [("role", "main"), ("baz", "qux")]) (plain (text "hello"))) , test htmlNativeDivs "

" $ "

hello

" =?> doc (para (text "hello") <> divWith ("", [], [("role", "main")]) (plain (text "main content"))) , test htmlNativeDivs "

followed by text" $ "

non-main content" =?> doc (divWith ("", [], [("role", "main")]) (plain (text "main content")) <> plain (text "non-main content")) ] , testGroup "samp" [ test html "inline samp block" $ "Answer is 42" =?> plain (codeWith ("",["sample"],[]) "Answer is 42") ] , testGroup "var" [ test html "inline var block" $ "result" =?> plain (codeWith ("",["variable"],[]) "result") ] , testGroup "header" [ test htmlNativeDivs "

is parsed as a div" $ "

" =?> divWith ("title", mempty, mempty) (plain "Title") ] , testGroup "code block" [ test html "attributes in pre > code element" $ "

\nprint('hi')\n

" =?> codeBlockWith ("a", ["python"], []) "print('hi')" , test html "attributes in pre take precendence" $ "

\nprint('hi mom!')\n

" =?> codeBlockWith ("c", [], []) "print('hi mom!')" ] , askOption $ \(QuickCheckTests numtests) -> testProperty "Round trip" $ withMaxSuccess (if QuickCheckTests numtests == defaultValue then 25 else numtests) roundTrip ]