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module Tests.Command (findPandoc, runTest, tests)
where
import Test.Framework (testGroup, Test )
import Test.Framework.Providers.HUnit
import Test.HUnit ( assertBool )
import System.Environment.Executable (getExecutablePath)
import System.FilePath ( (</>), takeDirectory, splitDirectories,
joinPath )
import System.Directory
import System.Exit
import Data.Algorithm.Diff
import Prelude hiding ( readFile )
import qualified Text.Pandoc.UTF8 as UTF8
import Text.Printf
import Text.Pandoc.Process (pipeProcess)
data TestResult = TestPassed
| TestError ExitCode
| TestFailed String FilePath [Diff String]
deriving (Eq)
instance Show TestResult where
show TestPassed = "PASSED"
show (TestError ec) = "ERROR " ++ show ec
show (TestFailed cmd file d) = '\n' : dash ++
"\n--- " ++ file ++
"\n+++ " ++ cmd ++ "\n" ++ showDiff (1,1) d ++
dash
where dash = replicate 72 '-'
showDiff :: (Int,Int) -> [Diff String] -> String
showDiff _ [] = ""
showDiff (l,r) (First ln : ds) =
printf "+%4d " l ++ ln ++ "\n" ++ showDiff (l+1,r) ds
showDiff (l,r) (Second ln : ds) =
printf "-%4d " r ++ ln ++ "\n" ++ showDiff (l,r+1) ds
showDiff (l,r) (Both _ _ : ds) =
showDiff (l+1,r+1) ds
-- | Find pandoc executable relative to test-pandoc
-- First, try in same directory (e.g. if both in ~/.cabal/bin)
-- Second, try ../pandoc (e.g. if in dist/XXX/build/test-pandoc)
findPandoc :: IO FilePath
findPandoc = do
testExePath <- getExecutablePath
let testExeDir = takeDirectory testExePath
found <- doesFileExist (testExeDir </> "pandoc")
return $ if found
then testExeDir </> "pandoc"
else case splitDirectories testExeDir of
[] -> error "test-pandoc: empty testExeDir"
xs -> joinPath (init xs) </> "pandoc" </> "pandoc"
-- | Run a test with normalize function, return True if test passed.
runTest :: FilePath -- ^ pandoc executable path
-> String -- ^ Title of test
-> [String] -- ^ Options to pass to pandoc
-> String -- ^ Input text
-> String -- ^ Expected output
-> Test
runTest pandocPath testname opts inp norm = testCase testname $ do
let options = ["--quiet", "--data-dir", ".." </> "data"] ++ opts
let cmd = unwords ((pandocPath </> "pandoc") : options)
let findDynlibDir [] = Nothing
findDynlibDir ("build":xs) = Just $ joinPath (reverse xs) </> "build"
findDynlibDir (_:xs) = findDynlibDir xs
let mbDynlibDir = findDynlibDir (reverse $ splitDirectories pandocPath)
let dynlibEnv = case mbDynlibDir of
Nothing -> []
Just d -> [("DYLD_LIBRARY_PATH", d),
("LD_LIBRARY_PATH", d)]
let env = dynlibEnv ++ [("TMP","."),("LANG","en_US.UTF-8"),("HOME", "./")]
(ec, outbs) <- pipeProcess (Just env) pandocPath options
(UTF8.fromStringLazy inp)
-- filter \r so the tests will work on Windows machines
let out = filter (/= '\r') $ UTF8.toStringLazy outbs
result <- if ec == ExitSuccess
then do
if out == norm
then return TestPassed
else return
$ TestFailed cmd "expected"
$ getDiff (lines out) (lines norm)
else return $ TestError ec
assertBool (show result) (result == TestPassed)
tests :: [Test]
tests = [ testGroup "commands"
[ ]
]
|
