ghc-mod/test/InfoSpec.hs

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{-# LANGUAGE CPP #-}
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module InfoSpec where
import Control.Applicative ((<$>))
import Data.List (isPrefixOf)
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import Language.Haskell.GhcMod
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import Language.Haskell.GhcMod.Cradle
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#if __GLASGOW_HASKELL__ < 706
import System.Environment.Executable (getExecutablePath)
#else
import System.Environment (getExecutablePath)
#endif
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import System.Exit
import System.FilePath
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import System.Process
import Test.Hspec
import TestUtils
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import Dir
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spec :: Spec
spec = do
describe "types" $ do
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it "shows types of the expression and its outers" $ do
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withDirectory_ "test/data/ghc-mod-check" $ do
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cradle <- findCradleWithoutSandbox
res <- runD $ types "Data/Foo.hs" 9 5
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res `shouldBe` "9 5 11 40 \"Int -> a -> a -> a\"\n7 1 11 40 \"Int -> Integer\"\n"
it "works with a module using TemplateHaskell" $ do
withDirectory_ "test/data" $ do
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cradle <- findCradleWithoutSandbox
res <- runD $ types "Bar.hs" 5 1
res `shouldBe` unlines ["5 1 5 20 \"[Char]\""]
it "works with a module that imports another module using TemplateHaskell" $ do
withDirectory_ "test/data" $ do
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cradle <- findCradleWithoutSandbox
res <- runD $ types "Main.hs" 3 8
res `shouldBe` unlines ["3 8 3 16 \"String -> IO ()\"", "3 8 3 20 \"IO ()\"", "3 1 3 20 \"IO ()\""]
describe "info" $ do
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it "works for non-export functions" $ do
withDirectory_ "test/data" $ do
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cradle <- findCradleWithoutSandbox
res <- runD $ info "Info.hs" "fib"
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res `shouldSatisfy` ("fib :: Int -> Int" `isPrefixOf`)
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it "works with a module using TemplateHaskell" $ do
withDirectory_ "test/data" $ do
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cradle <- findCradleWithoutSandbox
res <- runD $ info "Bar.hs" "foo"
res `shouldSatisfy` ("foo :: ExpQ" `isPrefixOf`)
it "works with a module that imports another module using TemplateHaskell" $ do
withDirectory_ "test/data" $ do
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cradle <- findCradleWithoutSandbox
res <- runD $ info "Main.hs" "bar"
res `shouldSatisfy` ("bar :: [Char]" `isPrefixOf`)
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it "doesn't fail on unicode output" $ do
dir <- getDistDir
code <- rawSystem (dir </> "build/ghc-mod/ghc-mod") ["info", "test/data/Unicode.hs", "Unicode", "unicode"]
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code `shouldSatisfy` (== ExitSuccess)
getDistDir :: IO FilePath
getDistDir = takeDirectory . takeDirectory . takeDirectory <$> getExecutablePath