ghc-mod/test/CaseSplitSpec.hs
2017-01-12 17:05:47 +01:00

82 lines
3.3 KiB
Haskell

{-# LANGUAGE CPP #-}
module CaseSplitSpec where
import GhcMod
import Test.Hspec
import TestUtils
import Dir
main :: IO ()
main = do
hspec spec
spec :: Spec
spec = do
describe "case split" $ do
#if __GLASGOW_HASKELL__ >= 708
it "does not blow up on HsWithBndrs panic" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect.hs" 24 10
res `shouldBe` "24 1 24 30"++
" \"mlAppend Nil y = _mlAppend_body\NUL"++
"mlAppend (Cons x1 x2) y = _mlAppend_body\"\n"
it "works with case expressions" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect.hs" 28 20
res `shouldBe` "28 19 28 39"++
" \"Nil -> _mlAppend_body\NUL"++
" (Cons x'1 x'2) -> _mlAppend_body\"\n"
it "works with where clauses" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect.hs" 34 17
res `shouldBe` "34 5 34 43"++
" \"mlReverse' Nil accum = _mlReverse_body\NUL"++
" mlReverse' (Cons xs'1 xs'2) accum = _mlReverse_body\"\n"
it "works with let bindings" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect.hs" 38 33
res `shouldBe` "38 21 38 59"++
" \"mlReverse' Nil accum = _mlReverse_body\NUL"++
" mlReverse' (Cons xs'1 xs'2) accum = _mlReverse_body\"\n"
#else
it "does not blow up on HsWithBndrs panic" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect706.hs" 24 10
res `shouldBe` "24 1 24 25"++
" \"mlAppend Nil y = undefined\NUL"++
"mlAppend (Cons x1 x2) y = undefined\"\n"
it "works with case expressions" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect706.hs" 28 20
res `shouldBe` "28 19 28 34"++
" \"Nil -> undefined\NUL"++
" (Cons x'1 x'2) -> undefined\"\n"
it "works with where clauses" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect706.hs" 34 17
res `shouldBe` "34 5 34 37"++
" \"mlReverse' Nil accum = undefined\NUL"++
" mlReverse' (Cons xs'1 xs'2) accum = undefined\"\n"
it "works with let bindings" $ do
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Vect706.hs" 38 33
res `shouldBe` "38 21 38 53"++
" \"mlReverse' Nil accum = undefined\NUL"++
" mlReverse' (Cons xs'1 xs'2) accum = undefined\"\n"
#endif
it "doesn't crash when source doesn't make sense" $
withDirectory_ "test/data/case-split" $ do
res <- runD $ splits "Crash.hs" 4 6
#if __GLASGOW_HASKELL__ < 710
res `shouldBe` "4 1 4 19 \"test x = undefined\"\n"
#else
res `shouldBe` ""
#endif