Resolve a warning in the tests

Author: AA-Turner

sphinx/ext/napoleon/docstring.py

@@ -358,7 +358,7 @@ def __init__(
         self._what: _AutodocObjType | Literal['object'] = what
         self._name = name
         self._obj = obj
-        if options:
+        if options is not None:
             try:
                 self._no_index = options.no_index or options.noindex
             except (AttributeError, TypeError):

tests/test_ext_autodoc/test_ext_autodoc.py

@@ -2639,11 +2639,11 @@ def test_singledispatchmethod_classmethod_automethod() -> None:
     ]
 
 
-@pytest.mark.skipif(
-    sys.version_info[:2] >= (3, 13),
-    reason='Cython does not support Python 3.13 yet.',
+@pytest.mark.xfail(
+    sys.version_info[:2] >= (3, 15),
+    reason='Cython does not support Python 3.15 yet.',
 )
-@pytest.mark.skipif(pyximport is None, reason='cython is not installed')
+@pytest.mark.skipif(pyximport is None, reason='Cython is not installed')
 def test_cython() -> None:
     options = {
         'members': None,