diff --git a/testing/deprecated_test.py b/testing/deprecated_test.py
index 52752d4e8e9..a5f51306358 100644
--- a/testing/deprecated_test.py
+++ b/testing/deprecated_test.py
@@ -118,6 +118,8 @@ def foo():
             raise NotImplementedError()
 
     assert len(record) == 2  # one for each mark decorator
+    # should point to this file
+    assert all(rec.filename == __file__ for rec in record)
 
 
 def test_fixture_disallowed_between_marks():