diff --git a/testing/code/test_excinfo.py b/testing/code/test_excinfo.py
index 6663f2d73..bd72c9ccf 100644
--- a/testing/code/test_excinfo.py
+++ b/testing/code/test_excinfo.py
@@ -1667,7 +1667,9 @@ def add_note(err: BaseException, msg: str) -> None:
         (AssertionError("foo"), ["bar", "baz"], "baz"),
     ],
 )
-def test_check_error_notes_success(error: Exception, notes: list[str], match: str) -> None:
+def test_check_error_notes_success(
+    error: Exception, notes: list[str], match: str
+) -> None:
     for note in notes:
         add_note(error, note)
 
@@ -1683,7 +1685,9 @@ def test_check_error_notes_success(error: Exception, notes: list[str], match: st
         (AssertionError("foo"), ["bar"], "foo\nbaz"),
     ],
 )
-def test_check_error_notes_failure(error: Exception, notes: list[str], match: str) -> None:
+def test_check_error_notes_failure(
+    error: Exception, notes: list[str], match: str
+) -> None:
     for note in notes:
         add_note(error, note)