diff --git a/test/test_ops.py b/test/test_ops.py
index 6353d0b27430..c593f454be29 100644
--- a/test/test_ops.py
+++ b/test/test_ops.py
@@ -245,6 +245,12 @@ def test_ceil(self):
   def test_round(self):
     helper_test_op([(45,35)], lambda x: x.round(), forward_only=True)
     helper_test_op(None, lambda x: x.round(), vals=[[1.499, 1.5, 1.501, 1.0, 2.1, 0.0, -5.0, -2.499, -2.5, -2.501]], forward_only=True)
+    # TODO: implement round to even
+    with self.assertRaises(Exception):
+      helper_test_op(None, lambda x: x.round(), vals=[[2.5]], forward_only=True)
+    with self.assertRaises(Exception):
+      helper_test_op(None, lambda x: x.round(), vals=[[-1.5]], forward_only=True)
+
   def test_tril(self):
     helper_test_op([(3,3)], lambda x: x.tril())
     helper_test_op([(3,3)], lambda x: x.tril(1))