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101 lines
4.1 KiB
Haskell
101 lines
4.1 KiB
Haskell
{-# LANGUAGE ImplicitParams, LambdaCase, NamedFieldPuns #-}
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module Integration.Spec (testTree) where
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import Control.Exception (throw)
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import Data.Foldable (find)
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import Data.List (union, concat, transpose)
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import qualified Data.ByteString.Lazy as BL
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import System.FilePath.Glob
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import System.IO.Unsafe
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import SpecHelpers
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import qualified System.Path as Path
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import System.Path ((</>))
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import Test.Tasty
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import Test.Tasty.Golden
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languages :: [Path.RelDir]
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languages = fmap Path.relDir ["go", "javascript", "json", "python", "ruby", "typescript", "tsx"]
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testTree :: (?session :: TaskSession) => TestTree
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testTree = testGroup "Integration (golden tests)" $ fmap testsForLanguage languages
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testsForLanguage :: (?session :: TaskSession) => Path.RelDir -> TestTree
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testsForLanguage language = do
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let dir = Path.relDir "test/fixtures" </> language </> Path.relDir "corpus"
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let items = unsafePerformIO (examples dir)
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localOption (mkTimeout 3000000) $ testGroup (Path.toString language) $ fmap testForExample items
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{-# NOINLINE testsForLanguage #-}
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data Example = DiffExample { fileA :: Path.RelFile, fileB :: Path.RelFile, diffOutput :: Path.RelFile }
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| ParseExample { file :: Path.RelFile, parseOutput :: Path.RelFile }
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deriving (Eq, Show)
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testForExample :: (?session :: TaskSession) => Example -> TestTree
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testForExample = \case
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DiffExample{fileA, fileB, diffOutput} ->
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goldenVsStringDiff
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("diffs " <> Path.toString diffOutput)
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(\ref new -> ["git", "diff", ref, new])
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(Path.toString diffOutput)
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(BL.fromStrict <$> diffFilePaths ?session (Both fileA fileB))
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ParseExample{file, parseOutput} ->
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goldenVsStringDiff
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("parses " <> Path.toString parseOutput)
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(\ref new -> ["git", "diff", ref, new])
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(Path.toString parseOutput)
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(parseFilePath ?session file >>= either throw (pure . BL.fromStrict))
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-- | Return all the examples from the given directory. Examples are expected to
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-- | have the form:
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-- |
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-- | example-name.A.rb - The left hand side of the diff.
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-- | example-name.B.rb - The right hand side of the diff.
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-- |
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-- | example-name.diffA-B.txt - The expected sexpression diff output for A -> B.
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-- | example-name.diffB-A.txt - The expected sexpression diff output for B -> A.
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-- |
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-- | example-name.parseA.txt - The expected sexpression parse tree for example-name.A.rb
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-- | example-name.parseB.txt - The expected sexpression parse tree for example-name.B.rb
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examples :: Path.RelDir -> IO [Example]
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examples directory = do
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as <- globFor "*.A.*"
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bs <- globFor "*.B.*"
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sExpAs <- globFor "*.parseA.txt"
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sExpBs <- globFor "*.parseB.txt"
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sExpDiffsAB <- globFor "*.diffA-B.txt"
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sExpDiffsBA <- globFor "*.diffB-A.txt"
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let exampleDiff lefts rights out name = DiffExample (lookupNormalized name lefts) (lookupNormalized name rights) out
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let exampleParse files out name = ParseExample (lookupNormalized name files) out
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let keys = (normalizeName <$> as) `union` (normalizeName <$> bs)
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pure $ merge [ getExamples (exampleParse as) sExpAs keys
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, getExamples (exampleParse bs) sExpBs keys
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, getExamples (exampleDiff as bs) sExpDiffsAB keys
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, getExamples (exampleDiff bs as) sExpDiffsBA keys ]
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where
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merge = concat . transpose
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-- Only returns examples if they exist
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getExamples f list = foldr (go f list) []
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where go f list name acc = case lookupNormalized' name list of
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Just out -> f out name : acc
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Nothing -> acc
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lookupNormalized :: Path.RelFile -> [Path.RelFile] -> Path.RelFile
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lookupNormalized name xs = fromMaybe
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(error ("cannot find " <> Path.toString name <> " make sure .A, .B and exist."))
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(lookupNormalized' name xs)
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lookupNormalized' :: Path.RelFile -> [Path.RelFile] -> Maybe Path.RelFile
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lookupNormalized' name = find ((== name) . normalizeName)
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globFor :: String -> IO [Path.RelFile]
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globFor p = fmap Path.relFile <$> globDir1 (compile p) (Path.toString directory)
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-- | Given a test name like "foo.A.js", return "foo".
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normalizeName :: Path.RelFile -> Path.RelFile
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normalizeName = Path.dropExtension . Path.dropExtension
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