Restore tests for ByteString in 3.14 (#2829)

Author: cdce8p

astroid/brain/brain_typing.py

@@ -78,7 +78,7 @@ class {0}(metaclass=Meta):
         "typing.MutableMapping",
         "typing.Sequence",
         "typing.MutableSequence",
-        "typing.ByteString",  # removed in 3.14
+        "typing.ByteString",  # scheduled for removal in 3.17
         "typing.Tuple",
         "typing.List",
         "typing.Deque",

tests/brain/test_brain.py

@@ -15,7 +15,7 @@
 from astroid import MANAGER, builder, nodes, objects, test_utils, util
 from astroid.bases import Instance
 from astroid.brain.brain_namedtuple_enum import _get_namedtuple_fields
-from astroid.const import PY312_PLUS, PY313_PLUS, PY314_PLUS
+from astroid.const import PY312_PLUS, PY313_PLUS
 from astroid.exceptions import (
     AttributeInferenceError,
     InferenceError,
@@ -181,7 +181,7 @@ def check_metaclass_is_abc(node: nodes.ClassDef):
     if PY312_PLUS and node.name == "ByteString":
         # .metaclass() finds the first metaclass in the mro(),
         # which, from 3.12, is _DeprecateByteStringMeta (unhelpful)
-        # until ByteString is removed in 3.14.
+        # until ByteString is removed in 3.17.
         # Jump over the first two ByteString classes in the mro().
         check_metaclass_is_abc(node.mro()[2])
     else:
@@ -285,9 +285,6 @@ class Derived(collections.abc.Iterator[int]):
             ],
         )
 
-    @pytest.mark.skipif(
-        PY314_PLUS, reason="collections.abc.ByteString was removed in 3.14"
-    )
     def test_collections_object_subscriptable_3(self):
         """With Python 3.9 the ByteString class of the collections module is subscriptable
         (but not the same class from typing module)"""
@@ -870,9 +867,8 @@ class Derived(typing.Hashable, typing.Iterator[int]):
             ],
         )
 
-    @pytest.mark.skipif(PY314_PLUS, reason="typing.ByteString was removed in 3.14")
     def test_typing_object_notsubscriptable_3(self):
-        """Until python39 ByteString class of the typing module is not
+        """The ByteString class of the typing module is not
         subscriptable (whereas it is in the collections' module)"""
         right_node = builder.extract_node(
             """