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{-# Language OverloadedStrings #-}
module Tests.Lua ( tests ) where
import Control.Monad (when)
import System.FilePath ((</>))
import Test.Tasty (TestTree)
import Test.Tasty.HUnit (Assertion, assertEqual, testCase)
import Test.Tasty.QuickCheck (ioProperty, testProperty)
import Text.Pandoc.Arbitrary ()
import Text.Pandoc.Definition (Block, Inline, Meta, Pandoc)
import Text.Pandoc.Builder ( (<>), bulletList, doc, doubleQuoted, emph
, linebreak, rawBlock, singleQuoted, para, plain
, space, str, strong)
import Text.Pandoc.Lua
import qualified Scripting.Lua as Lua
tests :: [TestTree]
tests =
[ testProperty "inline elements can be round-tripped through the lua stack" $
\x -> ioProperty (roundtripEqual (x::Inline))
, testProperty "block elements can be round-tripped through the lua stack" $
\x -> ioProperty (roundtripEqual (x::Block))
, testProperty "meta blocks can be round-tripped through the lua stack" $
\x -> ioProperty (roundtripEqual (x::Meta))
, testProperty "documents can be round-tripped through the lua stack" $
\x -> ioProperty (roundtripEqual (x::Pandoc))
, testCase "macro expansion via filter" $
assertFilterConversion "a '{{helloworld}}' string is expanded"
"strmacro.lua"
(doc . para $ str "{{helloworld}}")
(doc . para . emph $ str "Hello, World")
, testCase "convert all plains to paras" $
assertFilterConversion "plains become para"
"plain-to-para.lua"
(doc $ bulletList [plain (str "alfa"), plain (str "bravo")])
(doc $ bulletList [para (str "alfa"), para (str "bravo")])
, testCase "make hello world document" $
assertFilterConversion "Document contains 'Hello, World!'"
"hello-world-doc.lua"
(doc . para $ str "Hey!" <> linebreak <> str "What's up?")
(doc . para $ str "Hello," <> space <> str "World!")
, testCase "parse raw markdown blocks" $
assertFilterConversion "raw markdown block is converted"
"markdown-reader.lua"
(doc $ rawBlock "markdown" "*charly* **delta**")
(doc . para $ emph "charly" <> space <> strong "delta")
, testCase "allow shorthand functions for quote types" $
assertFilterConversion "single quoted becomes double quoted string"
"single-to-double-quoted.lua"
(doc . para . singleQuoted $ str "simple")
(doc . para . doubleQuoted $ str "simple")
]
assertFilterConversion :: String -> FilePath -> Pandoc -> Pandoc -> Assertion
assertFilterConversion msg filterPath docIn docExpected = do
docRes <- runLuaFilter ("lua" </> filterPath) [] docIn
assertEqual msg docExpected docRes
roundtripEqual :: (Eq a, Lua.StackValue a) => a -> IO Bool
roundtripEqual x = (x ==) <$> roundtripped
where
roundtripped :: (Lua.StackValue a) => IO a
roundtripped = do
lua <- Lua.newstate
Lua.openlibs lua
pushPandocModule lua
Lua.setglobal lua "pandoc"
oldSize <- Lua.gettop lua
Lua.push lua x
size <- Lua.gettop lua
when ((size - oldSize) /= 1) $
error ("not exactly one additional element on the stack: " ++ show size)
res <- Lua.peek lua (-1)
retval <- case res of
Nothing -> error "could not read from stack"
Just y -> return y
Lua.close lua
return retval
|
