diff --git a/tests/haskell-indentation-tests.el b/tests/haskell-indentation-tests.el
index 57c79d621..b51a6d192 100644
--- a/tests/haskell-indentation-tests.el
+++ b/tests/haskell-indentation-tests.el
@@ -604,5 +604,24 @@ test = [randomQQ| This is
 
 "
               ((4 0) 0 7))
+(hindent-test "30* parse '[] identifier correctly" "
+instance Callable '[]
+"
+	      ((1 0) 2))
+(hindent-test "31* allow type class declaration without methods" "
+class Foo a where
+instance Bar Int
+"
+	      ((2 0) 0))
+(hindent-test "32* allow type operators" "
+data (:.) a b = a :. b
+"
+	      ((2 0) 0 16))
+(hindent-test "33* parse #else in CPP" "
+#ifdef FLAG
+foo = ()
+#else
+"
+	      ((4 0) 0))
 
 ;;; haskell-indentation-tests.el ends here