diff --git a/testing/test_assertion.py b/testing/test_assertion.py
index ef4e36644..2e099ec19 100644
--- a/testing/test_assertion.py
+++ b/testing/test_assertion.py
@@ -678,6 +678,13 @@ class TestAssert_reprcompare:
         assert expl is not None
         assert len(expl) > 1
 
+    def test_dict_truncate(self) -> None:
+        dict1 = {"asdf": [1, 1, 1, 1, 1, 1, 1, 1]}
+        dict2 = {"asdf": [1, 1, 1, 1, 1, 1, 1, 2]}
+        expl = callequal(dict1, dict2)
+        print(expl)
+        assert False
+
     def test_dict_omitting(self) -> None:
         lines = callequal({"a": 0, "b": 1}, {"a": 1, "b": 1})
         assert lines is not None