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[3.9] bpo-42332: Add weakref slot to types.GenericAlias (GH-23250) (GH-23309)

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(cherry picked from commit 384b7a4bd9)
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kj 2020-11-18 05:45:08 +07:00 • committed by GitHub
parent 48a9c0eb2a
commit 71ba5f52d2
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3 changed files with 59 additions and 38 deletions
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90
Lib/test/test_genericalias.py
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@ -13,7 +13,10 @@ from contextvars import ContextVar, Token
from dataclasses import Field
from functools import partial, partialmethod, cached_property
from mailbox import Mailbox, _PartialFile
from ctypes import Array, LibraryLoader
try:
import ctypes
except ImportError:
ctypes = None
from difflib import SequenceMatcher
from filecmp import dircmp
from fileinput import FileInput
@ -44,45 +47,46 @@ V = TypeVar('V')
class BaseTest(unittest.TestCase):
"""Test basics."""
generic_types = [type, tuple, list, dict, set, frozenset, enumerate,
defaultdict, deque,
SequenceMatcher,
dircmp,
FileInput,
OrderedDict, Counter, UserDict, UserList,
Pattern, Match,
partial, partialmethod, cached_property,
AbstractContextManager, AbstractAsyncContextManager,
Awaitable, Coroutine,
AsyncIterable, AsyncIterator,
AsyncGenerator, Generator,
Iterable, Iterator,
Reversible,
Container, Collection,
Callable,
Mailbox, _PartialFile,
ContextVar, Token,
Field,
Set, MutableSet,
Mapping, MutableMapping, MappingView,
KeysView, ItemsView, ValuesView,
Sequence, MutableSequence,
MappingProxyType, AsyncGeneratorType,
DirEntry,
chain,
TemporaryDirectory, SpooledTemporaryFile,
Queue, SimpleQueue,
_AssertRaisesContext,
SplitResult, ParseResult,
ValueProxy, ApplyResult,
WeakSet, ReferenceType, ref,
ShareableList, MPSimpleQueue,
Future, _WorkItem,
Morsel]
if ctypes is not None:
generic_types.extend((ctypes.Array, ctypes.LibraryLoader))
def test_subscriptable(self):
for t in (type, tuple, list, dict, set, frozenset, enumerate,
defaultdict, deque,
SequenceMatcher,
dircmp,
FileInput,
OrderedDict, Counter, UserDict, UserList,
Pattern, Match,
partial, partialmethod, cached_property,
AbstractContextManager, AbstractAsyncContextManager,
Awaitable, Coroutine,
AsyncIterable, AsyncIterator,
AsyncGenerator, Generator,
Iterable, Iterator,
Reversible,
Container, Collection,
Callable,
Mailbox, _PartialFile,
ContextVar, Token,
Field,
Set, MutableSet,
Mapping, MutableMapping, MappingView,
KeysView, ItemsView, ValuesView,
Sequence, MutableSequence,
MappingProxyType, AsyncGeneratorType,
DirEntry,
chain,
TemporaryDirectory, SpooledTemporaryFile,
Queue, SimpleQueue,
_AssertRaisesContext,
Array, LibraryLoader,
SplitResult, ParseResult,
ValueProxy, ApplyResult,
WeakSet, ReferenceType, ref,
ShareableList, MPSimpleQueue,
Future, _WorkItem,
Morsel,
):
for t in self.generic_types:
if t is None:
continue
tname = t.__name__
@ -289,5 +293,15 @@ class BaseTest(unittest.TestCase):
for generic_alias_property in ("__origin__", "__args__", "__parameters__"):
self.assertIn(generic_alias_property, dir_of_gen_alias)
def test_weakref(self):
for t in self.generic_types:
if t is None:
continue
tname = t.__name__
with self.subTest(f"Testing {tname}"):
alias = t[int]
self.assertEqual(ref(alias)(), alias)
if __name__ == "__main__":
unittest.main()