Remove unused test code with helpful error message

ghcide/test/exe/FindImplementationAndHoverTests.hs

@@ -7,18 +7,15 @@ module FindImplementationAndHoverTests (tests) where
 import           Control.Monad
 import           Data.Foldable
 import           Data.Maybe
-import qualified Data.Text                  as T
-import qualified Language.LSP.Protocol.Lens as L
+import           Data.Text            (Text)
+import qualified Data.Text            as T
 import           Language.LSP.Test
-import           Text.Regex.TDFA            ((=~))
+import           Text.Regex.TDFA      ((=~))
 
 import           Config
-import           Control.Category           ((>>>))
-import           Control.Lens               ((^.))
-import           Data.Text                  (Text)
-import           Development.IDE.Test       (standardizeQuotes)
+import           Development.IDE.Test (standardizeQuotes)
 import           Test.Hls
-import           Test.Hls.FileSystem        (copyDir)
+import           Test.Hls.FileSystem  (copyDir)
 
 tests :: TestTree
 tests = let
@@ -39,55 +36,17 @@ tests = let
       case hover of
         Nothing -> unless (expected == ExpectNoHover) $ liftIO $ assertFailure "no hover found"
         Just Hover{_contents = (InL MarkupContent{_value = standardizeQuotes -> msg})
-                  ,_range    = rangeInHover } ->
+                  ,_range    = _rangeInHover } ->
           case expected of
-            ExpectRange  expectedRange -> checkHoverRange expectedRange rangeInHover msg
-            ExpectHoverRange expectedRange -> checkHoverRange expectedRange rangeInHover msg
+            ExpectRange  _expectedRange -> liftIO $ assertFailure $ "ExpectRange assertion not implemented, yet."
+            ExpectHoverRange _expectedRange -> liftIO $ assertFailure $ "ExpectHoverRange assertion not implemented, yet."
             ExpectHoverText snippets -> liftIO $ traverse_ (`assertFoundIn` msg) snippets
             ExpectHoverExcludeText snippets -> liftIO $ traverse_ (`assertNotFoundIn` msg) snippets
             ExpectHoverTextRegex re -> liftIO $ assertBool ("Regex not found in " <> T.unpack msg) (msg =~ re :: Bool)
             ExpectNoHover -> liftIO $ assertFailure $ "Expected no hover but got " <> show hover
             _ -> pure () -- all other expectations not relevant to hover
         _ -> liftIO $ assertFailure $ "test not expecting this kind of hover info" <> show hover
 
-  extractLineColFromHoverMsg :: T.Text -> [T.Text]
-  extractLineColFromHoverMsg =
-    -- Hover messages contain multiple lines, and we are looking for the definition
-    -- site
-    T.lines
-    -- The line we are looking for looks like: "*Defined at /tmp/GotoHover.hs:22:3*"
-    -- So filter by the start of the line
-    >>> mapMaybe (T.stripPrefix "*Defined at")
-    -- There can be multiple definitions per hover message!
-    -- See the test "field in record definition" for example.
-    -- The tests check against the last line that contains the above line.
-    >>> last
-    -- [" /tmp/", "22:3*"]
-    >>> T.splitOn (sourceFileName <> ":")
-    -- "22:3*"
-    >>> last
-    -- ["22:3", ""]
-    >>> T.splitOn "*"
-    -- "22:3"
-    >>> head
-    -- ["22", "3"]
-    >>> T.splitOn ":"
-
-  checkHoverRange :: Range -> Maybe Range -> T.Text -> Session ()
-  checkHoverRange expectedRange rangeInHover msg =
-    let
-      lineCol = extractLineColFromHoverMsg msg
-      -- looks like hovers use 1-based numbering while definitions use 0-based
-      -- turns out that they are stored 1-based in RealSrcLoc by GHC itself.
-      adjust Position{_line = l, _character = c} =
-        Position{_line = l + 1, _character = c + 1}
-    in
-    case map (read . T.unpack) lineCol of
-      [l,c] -> liftIO $ adjust (expectedRange ^. L.start) @=? Position l c
-      _     -> liftIO $ assertFailure $
-        "expected: " <> show ("[...]" <> sourceFileName <> ":<LINE>:<COL>**[...]", Just expectedRange) <>
-        "\n but got: " <> show (msg, rangeInHover)
-
   assertFoundIn :: T.Text -> T.Text -> Assertion
   assertFoundIn part whole = assertBool
     (T.unpack $ "failed to find: `" <> part <> "` in hover message:\n" <> whole)