Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)

Dependencies/Python/Lib/test/test_genericalias.py

@@ -0,0 +1,493 @@
+"""Tests for C-implemented GenericAlias."""
+
+import unittest
+import pickle
+from array import array
+import copy
+from collections import (
+    defaultdict, deque, OrderedDict, Counter, UserDict, UserList
+)
+from collections.abc import *
+from concurrent.futures import Future
+from concurrent.futures.thread import _WorkItem
+from contextlib import AbstractContextManager, AbstractAsyncContextManager
+from contextvars import ContextVar, Token
+from csv import DictReader, DictWriter
+from dataclasses import Field
+from functools import partial, partialmethod, cached_property
+from graphlib import TopologicalSorter
+from logging import LoggerAdapter, StreamHandler
+from mailbox import Mailbox, _PartialFile
+try:
+    import ctypes
+except ImportError:
+    ctypes = None
+from difflib import SequenceMatcher
+from filecmp import dircmp
+from fileinput import FileInput
+from itertools import chain
+from http.cookies import Morsel
+try:
+    from multiprocessing.managers import ValueProxy, DictProxy, ListProxy
+    from multiprocessing.pool import ApplyResult
+    from multiprocessing.queues import SimpleQueue as MPSimpleQueue
+    from multiprocessing.queues import Queue as MPQueue
+    from multiprocessing.queues import JoinableQueue as MPJoinableQueue
+except ImportError:
+    # _multiprocessing module is optional
+    ValueProxy = None
+    DictProxy = None
+    ListProxy = None
+    ApplyResult = None
+    MPSimpleQueue = None
+    MPQueue = None
+    MPJoinableQueue = None
+try:
+    from multiprocessing.shared_memory import ShareableList
+except ImportError:
+    # multiprocessing.shared_memory is not available on e.g. Android
+    ShareableList = None
+from os import DirEntry
+from re import Pattern, Match
+from types import GenericAlias, MappingProxyType, AsyncGeneratorType, CoroutineType, GeneratorType
+from tempfile import TemporaryDirectory, SpooledTemporaryFile
+from urllib.parse import SplitResult, ParseResult
+from unittest.case import _AssertRaisesContext
+from queue import Queue, SimpleQueue
+from weakref import WeakSet, ReferenceType, ref
+import typing
+from typing import Unpack
+
+from typing import TypeVar
+T = TypeVar('T')
+K = TypeVar('K')
+V = TypeVar('V')
+
+_UNPACKED_TUPLES = [
+    # Unpacked tuple using `*`
+    (*tuple[int],)[0],
+    (*tuple[T],)[0],
+    (*tuple[int, str],)[0],
+    (*tuple[int, ...],)[0],
+    (*tuple[T, ...],)[0],
+    tuple[*tuple[int, ...]],
+    tuple[*tuple[T, ...]],
+    tuple[str, *tuple[int, ...]],
+    tuple[*tuple[int, ...], str],
+    tuple[float, *tuple[int, ...], str],
+    tuple[*tuple[*tuple[int, ...]]],
+    # Unpacked tuple using `Unpack`
+    Unpack[tuple[int]],
+    Unpack[tuple[T]],
+    Unpack[tuple[int, str]],
+    Unpack[tuple[int, ...]],
+    Unpack[tuple[T, ...]],
+    tuple[Unpack[tuple[int, ...]]],
+    tuple[Unpack[tuple[T, ...]]],
+    tuple[str, Unpack[tuple[int, ...]]],
+    tuple[Unpack[tuple[int, ...]], str],
+    tuple[float, Unpack[tuple[int, ...]], str],
+    tuple[Unpack[tuple[Unpack[tuple[int, ...]]]]],
+    # Unpacked tuple using `*` AND `Unpack`
+    tuple[Unpack[tuple[*tuple[int, ...]]]],
+    tuple[*tuple[Unpack[tuple[int, ...]]]],
+]
+
+
+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,
+                     TopologicalSorter,
+                     AbstractContextManager, AbstractAsyncContextManager,
+                     Awaitable, Coroutine,
+                     AsyncIterable, AsyncIterator,
+                     AsyncGenerator, Generator,
+                     Iterable, Iterator,
+                     Reversible,
+                     Container, Collection,
+                     Mailbox, _PartialFile,
+                     ContextVar, Token,
+                     Field,
+                     Set, MutableSet,
+                     Mapping, MutableMapping, MappingView,
+                     KeysView, ItemsView, ValuesView,
+                     Sequence, MutableSequence,
+                     MappingProxyType, AsyncGeneratorType,
+                     GeneratorType, CoroutineType,
+                     DirEntry,
+                     chain,
+                     LoggerAdapter, StreamHandler,
+                     TemporaryDirectory, SpooledTemporaryFile,
+                     Queue, SimpleQueue,
+                     _AssertRaisesContext,
+                     SplitResult, ParseResult,
+                     WeakSet, ReferenceType, ref,
+                     ShareableList,
+                     Future, _WorkItem,
+                     Morsel,
+                     DictReader, DictWriter,
+                     array]
+    if ctypes is not None:
+        generic_types.extend((ctypes.Array, ctypes.LibraryLoader))
+    if ValueProxy is not None:
+        generic_types.extend((ValueProxy, DictProxy, ListProxy, ApplyResult,
+                              MPSimpleQueue, MPQueue, MPJoinableQueue))
+
+    def test_subscriptable(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.assertIs(alias.__origin__, t)
+                self.assertEqual(alias.__args__, (int,))
+                self.assertEqual(alias.__parameters__, ())
+
+    def test_unsubscriptable(self):
+        for t in int, str, float, Sized, Hashable:
+            tname = t.__name__
+            with self.subTest(f"Testing {tname}"):
+                with self.assertRaisesRegex(TypeError, tname):
+                    t[int]
+
+    def test_instantiate(self):
+        for t in tuple, list, dict, set, frozenset, defaultdict, deque:
+            tname = t.__name__
+            with self.subTest(f"Testing {tname}"):
+                alias = t[int]
+                self.assertEqual(alias(), t())
+                if t is dict:
+                    self.assertEqual(alias(iter([('a', 1), ('b', 2)])), dict(a=1, b=2))
+                    self.assertEqual(alias(a=1, b=2), dict(a=1, b=2))
+                elif t is defaultdict:
+                    def default():
+                        return 'value'
+                    a = alias(default)
+                    d = defaultdict(default)
+                    self.assertEqual(a['test'], d['test'])
+                else:
+                    self.assertEqual(alias(iter((1, 2, 3))), t((1, 2, 3)))
+
+    def test_unbound_methods(self):
+        t = list[int]
+        a = t()
+        t.append(a, 'foo')
+        self.assertEqual(a, ['foo'])
+        x = t.__getitem__(a, 0)
+        self.assertEqual(x, 'foo')
+        self.assertEqual(t.__len__(a), 1)
+
+    def test_subclassing(self):
+        class C(list[int]):
+            pass
+        self.assertEqual(C.__bases__, (list,))
+        self.assertEqual(C.__class__, type)
+
+    def test_class_methods(self):
+        t = dict[int, None]
+        self.assertEqual(dict.fromkeys(range(2)), {0: None, 1: None})  # This works
+        self.assertEqual(t.fromkeys(range(2)), {0: None, 1: None})  # Should be equivalent
+
+    def test_no_chaining(self):
+        t = list[int]
+        with self.assertRaises(TypeError):
+            t[int]
+
+    def test_generic_subclass(self):
+        class MyList(list):
+            pass
+        t = MyList[int]
+        self.assertIs(t.__origin__, MyList)
+        self.assertEqual(t.__args__, (int,))
+        self.assertEqual(t.__parameters__, ())
+
+    def test_repr(self):
+        class MyList(list):
+            pass
+        class MyGeneric:
+            __class_getitem__ = classmethod(GenericAlias)
+
+        self.assertEqual(repr(list[str]), 'list[str]')
+        self.assertEqual(repr(list[()]), 'list[()]')
+        self.assertEqual(repr(tuple[int, ...]), 'tuple[int, ...]')
+        x1 = tuple[*tuple[int]]
+        self.assertEqual(repr(x1), 'tuple[*tuple[int]]')
+        x2 = tuple[*tuple[int, str]]
+        self.assertEqual(repr(x2), 'tuple[*tuple[int, str]]')
+        x3 = tuple[*tuple[int, ...]]
+        self.assertEqual(repr(x3), 'tuple[*tuple[int, ...]]')
+        self.assertTrue(repr(MyList[int]).endswith('.BaseTest.test_repr.<locals>.MyList[int]'))
+        self.assertEqual(repr(list[str]()), '[]')  # instances should keep their normal repr
+
+        # gh-105488
+        self.assertTrue(repr(MyGeneric[int]).endswith('MyGeneric[int]'))
+        self.assertTrue(repr(MyGeneric[[]]).endswith('MyGeneric[[]]'))
+        self.assertTrue(repr(MyGeneric[[int, str]]).endswith('MyGeneric[[int, str]]'))
+
+    def test_exposed_type(self):
+        import types
+        a = types.GenericAlias(list, int)
+        self.assertEqual(str(a), 'list[int]')
+        self.assertIs(a.__origin__, list)
+        self.assertEqual(a.__args__, (int,))
+        self.assertEqual(a.__parameters__, ())
+
+    def test_parameters(self):
+        from typing import List, Dict, Callable
+
+        D0 = dict[str, int]
+        self.assertEqual(D0.__args__, (str, int))
+        self.assertEqual(D0.__parameters__, ())
+        D1a = dict[str, V]
+        self.assertEqual(D1a.__args__, (str, V))
+        self.assertEqual(D1a.__parameters__, (V,))
+        D1b = dict[K, int]
+        self.assertEqual(D1b.__args__, (K, int))
+        self.assertEqual(D1b.__parameters__, (K,))
+        D2a = dict[K, V]
+        self.assertEqual(D2a.__args__, (K, V))
+        self.assertEqual(D2a.__parameters__, (K, V))
+        D2b = dict[T, T]
+        self.assertEqual(D2b.__args__, (T, T))
+        self.assertEqual(D2b.__parameters__, (T,))
+
+        L0 = list[str]
+        self.assertEqual(L0.__args__, (str,))
+        self.assertEqual(L0.__parameters__, ())
+        L1 = list[T]
+        self.assertEqual(L1.__args__, (T,))
+        self.assertEqual(L1.__parameters__, (T,))
+        L2 = list[list[T]]
+        self.assertEqual(L2.__args__, (list[T],))
+        self.assertEqual(L2.__parameters__, (T,))
+        L3 = list[List[T]]
+        self.assertEqual(L3.__args__, (List[T],))
+        self.assertEqual(L3.__parameters__, (T,))
+        L4a = list[Dict[K, V]]
+        self.assertEqual(L4a.__args__, (Dict[K, V],))
+        self.assertEqual(L4a.__parameters__, (K, V))
+        L4b = list[Dict[T, int]]
+        self.assertEqual(L4b.__args__, (Dict[T, int],))
+        self.assertEqual(L4b.__parameters__, (T,))
+        L5 = list[Callable[[K, V], K]]
+        self.assertEqual(L5.__args__, (Callable[[K, V], K],))
+        self.assertEqual(L5.__parameters__, (K, V))
+
+        T1 = tuple[*tuple[int]]
+        self.assertEqual(
+            T1.__args__,
+            (*tuple[int],),
+        )
+        self.assertEqual(T1.__parameters__, ())
+
+        T2 = tuple[*tuple[T]]
+        self.assertEqual(
+            T2.__args__,
+            (*tuple[T],),
+        )
+        self.assertEqual(T2.__parameters__, (T,))
+
+        T4 = tuple[*tuple[int, str]]
+        self.assertEqual(
+            T4.__args__,
+            (*tuple[int, str],),
+        )
+        self.assertEqual(T4.__parameters__, ())
+
+    def test_parameter_chaining(self):
+        from typing import List, Dict, Union, Callable
+        self.assertEqual(list[T][int], list[int])
+        self.assertEqual(dict[str, T][int], dict[str, int])
+        self.assertEqual(dict[T, int][str], dict[str, int])
+        self.assertEqual(dict[K, V][str, int], dict[str, int])
+        self.assertEqual(dict[T, T][int], dict[int, int])
+
+        self.assertEqual(list[list[T]][int], list[list[int]])
+        self.assertEqual(list[dict[T, int]][str], list[dict[str, int]])
+        self.assertEqual(list[dict[str, T]][int], list[dict[str, int]])
+        self.assertEqual(list[dict[K, V]][str, int], list[dict[str, int]])
+        self.assertEqual(dict[T, list[int]][str], dict[str, list[int]])
+
+        self.assertEqual(list[List[T]][int], list[List[int]])
+        self.assertEqual(list[Dict[K, V]][str, int], list[Dict[str, int]])
+        self.assertEqual(list[Union[K, V]][str, int], list[Union[str, int]])
+        self.assertEqual(list[Callable[[K, V], K]][str, int],
+                         list[Callable[[str, int], str]])
+        self.assertEqual(dict[T, List[int]][str], dict[str, List[int]])
+
+        with self.assertRaises(TypeError):
+            list[int][int]
+        with self.assertRaises(TypeError):
+            dict[T, int][str, int]
+        with self.assertRaises(TypeError):
+            dict[str, T][str, int]
+        with self.assertRaises(TypeError):
+            dict[T, T][str, int]
+
+    def test_equality(self):
+        self.assertEqual(list[int], list[int])
+        self.assertEqual(dict[str, int], dict[str, int])
+        self.assertEqual((*tuple[int],)[0], (*tuple[int],)[0])
+        self.assertEqual(tuple[*tuple[int]], tuple[*tuple[int]])
+        self.assertNotEqual(dict[str, int], dict[str, str])
+        self.assertNotEqual(list, list[int])
+        self.assertNotEqual(list[int], list)
+        self.assertNotEqual(list[int], tuple[int])
+        self.assertNotEqual((*tuple[int],)[0], tuple[int])
+
+    def test_isinstance(self):
+        self.assertTrue(isinstance([], list))
+        with self.assertRaises(TypeError):
+            isinstance([], list[str])
+
+    def test_issubclass(self):
+        class L(list): ...
+        self.assertTrue(issubclass(L, list))
+        with self.assertRaises(TypeError):
+            issubclass(L, list[str])
+
+    def test_type_generic(self):
+        t = type[int]
+        Test = t('Test', (), {})
+        self.assertTrue(isinstance(Test, type))
+        test = Test()
+        self.assertEqual(t(test), Test)
+        self.assertEqual(t(0), int)
+
+    def test_type_subclass_generic(self):
+        class MyType(type):
+            pass
+        with self.assertRaisesRegex(TypeError, 'MyType'):
+            MyType[int]
+
+    def test_pickle(self):
+        aliases = [GenericAlias(list, T)] + _UNPACKED_TUPLES
+        for alias in aliases:
+            for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+                with self.subTest(alias=alias, proto=proto):
+                    s = pickle.dumps(alias, proto)
+                    loaded = pickle.loads(s)
+                    self.assertEqual(loaded.__origin__, alias.__origin__)
+                    self.assertEqual(loaded.__args__, alias.__args__)
+                    self.assertEqual(loaded.__parameters__, alias.__parameters__)
+                    self.assertEqual(type(loaded), type(alias))
+
+    def test_copy(self):
+        class X(list):
+            def __copy__(self):
+                return self
+            def __deepcopy__(self, memo):
+                return self
+
+        aliases = [
+            GenericAlias(list, T),
+            GenericAlias(deque, T),
+            GenericAlias(X, T)
+        ] + _UNPACKED_TUPLES
+        for alias in aliases:
+            with self.subTest(alias=alias):
+                copied = copy.copy(alias)
+                self.assertEqual(copied.__origin__, alias.__origin__)
+                self.assertEqual(copied.__args__, alias.__args__)
+                self.assertEqual(copied.__parameters__, alias.__parameters__)
+                copied = copy.deepcopy(alias)
+                self.assertEqual(copied.__origin__, alias.__origin__)
+                self.assertEqual(copied.__args__, alias.__args__)
+                self.assertEqual(copied.__parameters__, alias.__parameters__)
+
+    def test_unpack(self):
+        alias = tuple[str, ...]
+        self.assertIs(alias.__unpacked__, False)
+        unpacked = (*alias,)[0]
+        self.assertIs(unpacked.__unpacked__, True)
+
+    def test_union(self):
+        a = typing.Union[list[int], list[str]]
+        self.assertEqual(a.__args__, (list[int], list[str]))
+        self.assertEqual(a.__parameters__, ())
+
+    def test_union_generic(self):
+        a = typing.Union[list[T], tuple[T, ...]]
+        self.assertEqual(a.__args__, (list[T], tuple[T, ...]))
+        self.assertEqual(a.__parameters__, (T,))
+
+    def test_dir(self):
+        dir_of_gen_alias = set(dir(list[int]))
+        self.assertTrue(dir_of_gen_alias.issuperset(dir(list)))
+        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)
+
+    def test_no_kwargs(self):
+        # bpo-42576
+        with self.assertRaises(TypeError):
+            GenericAlias(bad=float)
+
+    def test_subclassing_types_genericalias(self):
+        class SubClass(GenericAlias): ...
+        alias = SubClass(list, int)
+        class Bad(GenericAlias):
+            def __new__(cls, *args, **kwargs):
+                super().__new__(cls, *args, **kwargs)
+
+        self.assertEqual(alias, list[int])
+        with self.assertRaises(TypeError):
+            Bad(list, int, bad=int)
+
+    def test_iter_creates_starred_tuple(self):
+        t = tuple[int, str]
+        iter_t = iter(t)
+        x = next(iter_t)
+        self.assertEqual(repr(x), '*tuple[int, str]')
+
+    def test_calling_next_twice_raises_stopiteration(self):
+        t = tuple[int, str]
+        iter_t = iter(t)
+        next(iter_t)
+        with self.assertRaises(StopIteration):
+            next(iter_t)
+
+    def test_del_iter(self):
+        t = tuple[int, str]
+        iter_x = iter(t)
+        del iter_x
+
+
+class TypeIterationTests(unittest.TestCase):
+    _UNITERABLE_TYPES = (list, tuple)
+
+    def test_cannot_iterate(self):
+        for test_type in self._UNITERABLE_TYPES:
+            with self.subTest(type=test_type):
+                expected_error_regex = "object is not iterable"
+                with self.assertRaisesRegex(TypeError, expected_error_regex):
+                    iter(test_type)
+                with self.assertRaisesRegex(TypeError, expected_error_regex):
+                    list(test_type)
+                with self.assertRaisesRegex(TypeError, expected_error_regex):
+                    for _ in test_type:
+                        pass
+
+    def test_is_not_instance_of_iterable(self):
+        for type_to_test in self._UNITERABLE_TYPES:
+            self.assertNotIsInstance(type_to_test, Iterable)
+
+
+if __name__ == "__main__":
+    unittest.main()