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{-# LANGUAGE ScopedTypeVariables, FlexibleContexts #-}
module Tests.Walk (tests) where
import Text.Pandoc.Definition
import Text.Pandoc.Walk
import Test.Framework
import Tests.Helpers
import Data.Char (toUpper)
import Tests.Arbitrary()
import Data.Generics
import Data.Monoid
tests :: [Test]
tests = [ testGroup "Walk"
[ property "p_walk inlineTrans" (p_walk inlineTrans)
, property "p_walk blockTrans" (p_walk blockTrans)
, property "p_query inlineQuery" (p_query inlineQuery)
, property "p_query blockQuery" (p_query blockQuery)
]
]
p_walk :: (Typeable a, Walkable a Pandoc)
=> (a -> a) -> Pandoc -> Bool
p_walk f = (\(d :: Pandoc) -> everywhere (mkT f) d == walk f d)
p_query :: (Eq a, Typeable a1, Monoid a, Walkable a1 Pandoc)
=> (a1 -> a) -> Pandoc -> Bool
p_query f = (\(d :: Pandoc) -> everything mappend (mempty `mkQ` f) d == query f d)
inlineTrans :: Inline -> Inline
inlineTrans (Str xs) = Str $ map toUpper xs
inlineTrans (Emph xs) = Strong xs
inlineTrans x = x
blockTrans :: Block -> Block
blockTrans (Plain xs) = Para xs
blockTrans (BlockQuote xs) = Div ("",["special"],[]) xs
blockTrans x = x
inlineQuery :: Inline -> String
inlineQuery (Str xs) = xs
inlineQuery _ = ""
blockQuery :: Block -> [Int]
blockQuery (Header lev _ _) = [lev]
blockQuery _ = []
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