Add changelog and note

changelog/11284.deprecation.rst

@@ -0,0 +1,3 @@
+Accessing ``item.funcargs`` with fixture names other than the direct ones, i.e. the direct args, the ones with ``autouse`` and the ones with ``usefixtures`` issues a warning.
+
+This will become an error in pytest 9.

doc/en/deprecations.rst

@@ -278,6 +278,20 @@ The accompanying ``py.path.local`` based paths have been deprecated: plugins whi
     resolved in future versions as we slowly get rid of the :pypi:`py`
     dependency (see :issue:`9283` for a longer discussion).
 
+.. _item-funcargs-deprecation:
+
+Accessing ``item.funcargs`` with not directly requested fixture names
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. deprecated:: 8.0
+.. versionremoved:: 9.0
+
+Accessing ``item.funcargs`` with not directly requested fixture names issues warning and
+will be erroneous starting from pytest 9. Directly requested fixtures are the direct args
+to the test, the ``usefixtures`` fixtures and the ``autouse`` ones.
+
+To request fixtures other than the directly requested ones, user could use
+``request.getfixturevalue`` instead.
 
 .. _nose-deprecation:
 

src/_pytest/deprecated.py

@@ -50,10 +50,10 @@ MARKED_FIXTURE = PytestRemovedIn9Warning(
 )
 
 ITEM_FUNCARGS_MEMBERS = PytestRemovedIn9Warning(
-    "Access to names other than initialnames i.e., direct args,"
-    " the ones with `usefixture` or the ones with `autouse` through "
-    "`item.funcargs` is deprecated and will raise `KeyError` from "
-    "pytest 9. Please use `request.getfixturevalue` instead."
+    "Accessing `item.funcargs` with a fixture name not directly requested"
+    " by the item, through a direct argument, `usefixtures` marker or"
+    " an `autouse` fixture, is deprecated and will raise KeyError starting"
+    " from pytest 9. Please use request.getfixturevalue instead."
 )
 
 # You want to make some `__init__` or function "private".

testing/deprecated_test.py

@@ -217,7 +217,7 @@ def test_deprecated_access_to_item_funcargs(pytester: Pytester) -> None:
     test.setup()
     with pytest.warns(
         pytest.PytestRemovedIn9Warning,
-        match=r"Access to names other than initialnames",
+        match=r"Accessing `item.funcargs` with a fixture",
     ) as record:
         test.funcargs["fixture1"]
         assert len(record) == 1