diff --git a/testing/test_assertrewrite.py b/testing/test_assertrewrite.py
index 9b4ca87b2..5833a0483 100644
--- a/testing/test_assertrewrite.py
+++ b/testing/test_assertrewrite.py
@@ -2062,6 +2062,9 @@ class TestIssue11140:
         pytester.makepyfile(
             """\
             0
+
+            def test_foo():
+                pass
             """
         )
         result = pytester.runpytest()