BugFix #14329

changelog/14329.bugfix.rst

@@ -0,0 +1 @@
+Now the markers are considered in the order from near to far, through the mro. `get_closes_marker("usefixtures")` will also return the nearest mark, but the processing of the `usefixtures` goes from the far mark to the near one.

src/_pytest/fixtures.py

@@ -1677,7 +1677,9 @@ def _getautousenames(self, node: nodes.Node) -> Iterator[str]:
 
     def _getusefixturesnames(self, node: nodes.Item) -> Iterator[str]:
         """Return the names of usefixtures fixtures applicable to node."""
-        for marker_node, mark in node.iter_markers_with_node(name="usefixtures"):
+        for marker_node, mark in reversed(
+            list(node.iter_markers_with_node(name="usefixtures"))
+        ):
             if not mark.args:
                 marker_node.warn(
                     PytestWarning(

src/_pytest/mark/structures.py

@@ -432,9 +432,7 @@ def get_unpacked_marks(
         if not consider_mro:
             mark_lists = [obj.__dict__.get("pytestmark", [])]
         else:
-            mark_lists = [
-                x.__dict__.get("pytestmark", []) for x in reversed(obj.__mro__)
-            ]
+            mark_lists = [x.__dict__.get("pytestmark", []) for x in obj.__mro__]
         mark_list = []
         for item in mark_lists:
             if isinstance(item, list):

testing/test_mark.py

@@ -651,6 +651,43 @@ def test_has_inherited(self):
         assert has_inherited_marker.kwargs == {"location": "class"}
         assert has_own.get_closest_marker("missing") is None
 
+    def test_mark_closest_with_parent(self, pytester: Pytester):
+        test_path = pytester.makepyfile(
+            """
+            import pytest
+
+            @pytest.mark.data(0)
+            class TestParent:
+                def get_data_mark(self, request: pytest.FixtureRequest):
+                    getted_mark = request.node.get_closest_marker("data")
+                    assert getted_mark
+                    return getted_mark
+
+                def test_case(self, request: pytest.FixtureRequest):
+                    data_mark = self.get_data_mark(request)
+                    assert data_mark.args[0] == 0
+
+                @pytest.mark.data(1)
+                def test_case_with_own_mark(self, request: pytest.FixtureRequest):
+                    data_mark = self.get_data_mark(request)
+                    assert data_mark.args[0] == 1
+
+
+            @pytest.mark.data(2)
+            class TestChild(TestParent):
+                def test_case(self, request: pytest.FixtureRequest):
+                    data_mark = self.get_data_mark(request)
+                    assert data_mark.args[0] == 2
+
+                @pytest.mark.data(3)
+                def test_case_with_own_mark(self, request: pytest.FixtureRequest):
+                    data_mark = self.get_data_mark(request)
+                    assert data_mark.args[0] == 3
+            """
+        )
+        result = pytester.runpytest(test_path)
+        result.assert_outcomes(passed=4)
+
     def test_mark_with_wrong_marker(self, pytester: Pytester) -> None:
         reprec = pytester.inline_runsource(
             """
@@ -1229,7 +1266,7 @@ class C(A, B):
 
     all_marks = get_unpacked_marks(C)
 
-    assert all_marks == [xfail("b").mark, xfail("a").mark, xfail("c").mark]
+    assert all_marks == [xfail("c").mark, xfail("a").mark, xfail("b").mark]
 
     assert get_unpacked_marks(C, consider_mro=False) == [xfail("c").mark]