Raise the message level from Warning to Error for duplicated predicates check

1 files changed, 2 insertions, 2 deletions

diff --git a/test/dup_cases.ml b/test/dup_cases.ml
index 4ae95b1..39bea23 100644
--- a/test/dup_cases.ml
+++ b/test/dup_cases.ml
@@ -60,7 +60,7 @@ end
 |}
     [
       {
-        level = Warn;
+        level = Error;
         loc = _position;
         message = "This case is duplicated line(s) 5";
       };
@@ -80,7 +80,7 @@ end
 |}
     [
       {
-        level = Warn;
+        level = Error;
         loc = _position;
         message = "This case is duplicated line(s) 6";
       };