module Main where
import Instances ()
import Language.Lua.Lexer
import Language.Lua.Parser
import Language.Lua.Pretty
import Language.Lua.Syntax
import Language.Lua.Token
import Data.Loc
import Test.QuickCheck
import Test.Tasty
import Test.Tasty.HUnit
import qualified Test.Tasty.QuickCheck as QC
main :: IO ()
main = defaultMain $ testGroup "tests"
[ lexerTests
-- TODO: Make smarter shrinks and re-enable
-- , parserTests
]
lexerTests :: TestTree
lexerTests = testGroup "lexer tests"
[ stringLiteralTests
, intLiteralTests
, floatLiteralTests
]
where
stringLiteralTests :: TestTree
stringLiteralTests = testCase "string literals" $ do
let tk = [TkStringLit "alo\n123\""]
l "\'alo\\\n123\"\'" @?= tk
l "\"alo\\\n123\\\"\"" @?= tk
l "\'\\97lo\\10\\04923\"\'" @?= tk
l "[[alo\n123\"]]" @?= tk
l "[==[\nalo\n123\"]==]" @?= tk
intLiteralTests :: TestTree
intLiteralTests = testCase "int literals" $ do
l "3" @?= [TkIntLit "3"]
l "345" @?= [TkIntLit "345"]
l "0xff" @?= [TkIntLit "0xff"]
l "0XBEBada" @?= [TkIntLit "0XBEBada"]
floatLiteralTests :: TestTree
floatLiteralTests = testCase "float literals" $ do
l "3." @?= [TkFloatLit "3."]
l "3.1416" @?= [TkFloatLit "3.1416"]
l "3.14e-2" @?= [TkFloatLit "3.14e-2"]
l "3.14E+2" @?= [TkFloatLit "3.14E+2"]
l "3.14E2" @?= [TkFloatLit "3.14E2"]
l "0x0.1E" @?= [TkFloatLit "0x0.1E"]
l "0xA23p-4" @?= [TkFloatLit "0xA23p-4"]
l "0X1.92P+1" @?= [TkFloatLit "0X1.92P+1"]
l "0X1.92p1" @?= [TkFloatLit "0X1.92p1"]
l :: String -> [Token]
l = map unLoc . streamToList . runLexer luaLexer ""
parserTests :: TestTree
parserTests = QC.testProperty "Pretty-printer round-trip" (\luaAst -> luaFromString (luaToString luaAst) == Just luaAst)
luaToString :: Chunk () -> String
luaToString c = displayS (renderPretty 1.0 80 (pretty c)) ""
luaFromString :: String -> Maybe (Chunk ())
luaFromString s = either (const Nothing) Just (streamToEitherList (runLexer luaLexer "" s)) >>= \tks ->
case fullParses (parser luaChunk) tks of
([c], _) -> Just (() <$ c)
_ -> Nothing