Get any contained func when marking

Author: eitanwass

changelog/12863.bugfix.rst

@@ -1 +1 @@
-Fix :func:`pytest.mark.parametrize` marker placed above `@staticmethod`
+Fix :func:`pytest.mark.parametrize <pytest.mark.xfail>` marker placed above `@staticmethod`

src/_pytest/mark/structures.py

@@ -349,7 +349,7 @@ def __call__(self, *args: object, **kwargs: object):
         if args and not kwargs:
             func = args[0]
             is_class = inspect.isclass(func)
-            marking_func = func.__func__ if isinstance(func, staticmethod) else func
+            marking_func = getattr(func, "__func__", func)
             if len(args) == 1 and (istestfunc(marking_func) or is_class):
                 store_mark(marking_func, self.mark, stacklevel=3)
                 return func

testing/test_mark.py

@@ -1235,11 +1235,16 @@ def test_mark_parametrize_over_staticmethod(pytester: Pytester) -> None:
         import pytest
 
         class TestClass:
+            @pytest.mark.parametrize("value", [1, 2])
+            @classmethod
+            def test_classmethod_wrapper(cls, value: int):
+                assert value in [1, 2]
+
             @pytest.mark.parametrize("value", [1, 2])
             @staticmethod
-            def test_foo(value: int):
+            def test_staticmethod_wrapper(value: int):
                 assert value in [1, 2]
         """
     )
     result = pytester.runpytest(foo)
-    result.assert_outcomes(passed=2)
+    result.assert_outcomes(passed=4)