Fix findCabalFile

test/CabalApiSpec.hs

@@ -3,7 +3,6 @@
 module CabalApiSpec where
 
 import Control.Applicative
-import Data.Maybe
 import Language.Haskell.GhcMod.CabalApi
 import Language.Haskell.GhcMod.Cradle
 import Language.Haskell.GhcMod.Types
@@ -35,7 +34,7 @@ spec = do
             cwd <- getCurrentDirectory
             withDirectory "test/data/subdir1/subdir2" $ \dir -> do
                 crdl <- findCradle
-                let cabalFile = cradleCabalFile crdl
+                let Just cabalFile = cradleCabalFile crdl
                 pkgDesc <- runD $ parseCabalFile crdl cabalFile
                 res <- runD $ getCompilerOptions [] crdl pkgDesc
                 let res' = res {

test/PathsAndFilesSpec.hs

@@ -33,3 +33,10 @@ spec = do
     describe "getCabalFiles" $ do
         it "doesn't think $HOME/.cabal is a cabal file" $ do
             (getCabalFiles =<< getEnv "HOME") `shouldReturn` []
+
+    describe "findCabalFile" $ do
+        it "works" $ do
+            findCabalFile "test/data" `shouldReturn` Just "test/data/cabalapi.cabal"
+
+        it "finds cabal files in parent directories" $ do
+            findCabalFile "test/data/subdir1/subdir2" `shouldReturn` Just "test/data/cabalapi.cabal"