diff --git a/test/data/GotoHover.hs b/test/data/GotoHover.hs
index 0cd41d3d5..91b0f780b 100644
--- a/test/data/GotoHover.hs
+++ b/test/data/GotoHover.hs
@@ -42,3 +42,9 @@ documented :: Monad m => Either Int (m a)
 documented = Left 7518
 
 listOfInt = [ 8391 :: Int, 6268 ]
+
+outer :: Bool
+outer = undefined where
+
+  inner :: Char
+  inner = undefined
diff --git a/test/exe/Main.hs b/test/exe/Main.hs
index 43a1516bf..b0ef3b054 100644
--- a/test/exe/Main.hs
+++ b/test/exe/Main.hs
@@ -1098,6 +1098,8 @@ findDefinitionAndHoverTests = let
   chrL36 = Position 36 25  ;  litC   = [ExpectHoverText ["'t'"]]
   txtL8  = Position  8 14  ;  litT   = [ExpectHoverText ["\"dfgv\""]]
   lstL43 = Position 43 12  ;  litL   = [ExpectHoverText ["[ 8391 :: Int, 6268 ]"]]
+  outL45 = Position 45  3  ;  outSig = [ExpectHoverText ["outer", "Bool"], mkR 46 0 46 5]
+  innL48 = Position 48  5  ;  innSig = [ExpectHoverText ["inner", "Char"], mkR 49 2 49 7]
   in
   mkFindTests
   --     def    hover  look   expect
@@ -1133,6 +1135,8 @@ findDefinitionAndHoverTests = let
   , test no     broken txtL8  litT   "literal Text in hover info      #274"
   , test no     broken lstL43 litL   "literal List in hover info      #274"
   , test no     broken docL41 constr "type constraint in hover info   #283"
+  , test broken broken outL45 outSig "top-level signature             #310"
+  , test broken broken innL48 innSig "inner     signature             #310"
   ]
   where yes, broken :: (TestTree -> Maybe TestTree)
         yes    = Just -- test should run and pass