1 files changed, 133 insertions, 0 deletions
diff --git a/tests/functional/g/generic_alias/generic_alias_collections_py37.py b/tests/functional/g/generic_alias/generic_alias_collections_py37.py
new file mode 100644
index 000000000..eaa153ced
--- /dev/null
+++ b/tests/functional/g/generic_alias/generic_alias_collections_py37.py
@@ -0,0 +1,133 @@
+"""Test generic alias support for stdlib types (added in PY39).
+
+Raise [unsubscriptable-object] error for PY37 and PY38.
+"""
+# flake8: noqa
+# pylint: disable=missing-docstring,pointless-statement
+# pylint: disable=too-few-public-methods,multiple-statements,line-too-long
+import abc
+import collections
+import collections.abc
+import contextlib
+import re
+
+# special
+tuple[int, int]  # [unsubscriptable-object]
+type[int]  # [unsubscriptable-object]
+collections.abc.Callable[[int], str]  # [unsubscriptable-object]
+
+# builtins
+dict[int, str]  # [unsubscriptable-object]
+list[int]  # [unsubscriptable-object]
+set[int]  # [unsubscriptable-object]
+frozenset[int]  # [unsubscriptable-object]
+
+# collections
+collections.defaultdict[int, str]  # [unsubscriptable-object]
+collections.OrderedDict[int, str]  # [unsubscriptable-object]
+collections.ChainMap[int, str]  # [unsubscriptable-object]
+collections.Counter[int]  # [unsubscriptable-object]
+collections.deque[int]  # [unsubscriptable-object]
+
+# collections.abc
+collections.abc.Set[int]  # [unsubscriptable-object]
+collections.abc.Collection[int]  # [unsubscriptable-object]
+collections.abc.Container[int]  # [unsubscriptable-object]
+collections.abc.ItemsView[int, str]  # [unsubscriptable-object]
+collections.abc.KeysView[int]  # [unsubscriptable-object]
+collections.abc.Mapping[int, str]  # [unsubscriptable-object]
+collections.abc.MappingView[int]  # [unsubscriptable-object]
+collections.abc.MutableMapping[int, str]  # [unsubscriptable-object]
+collections.abc.MutableSequence[int]  # [unsubscriptable-object]
+collections.abc.MutableSet[int]  # [unsubscriptable-object]
+collections.abc.Sequence[int]  # [unsubscriptable-object]
+collections.abc.ValuesView[int]  # [unsubscriptable-object]
+
+collections.abc.Iterable[int]  # [unsubscriptable-object]
+collections.abc.Iterator[int]  # [unsubscriptable-object]
+collections.abc.Generator[int, None, None]  # [unsubscriptable-object]
+collections.abc.Reversible[int]  # [unsubscriptable-object]
+
+collections.abc.Coroutine[list[str], str, int]  # [unsubscriptable-object,unsubscriptable-object]
+collections.abc.AsyncGenerator[int, None]  # [unsubscriptable-object]
+collections.abc.AsyncIterable[int]  # [unsubscriptable-object]
+collections.abc.AsyncIterator[int]  # [unsubscriptable-object]
+collections.abc.Awaitable[int]  # [unsubscriptable-object]
+
+# contextlib
+contextlib.AbstractContextManager[int]  # [unsubscriptable-object]
+contextlib.AbstractAsyncContextManager[int]  # [unsubscriptable-object]
+
+# re
+re.Pattern[str]  # [unsubscriptable-object]
+re.Match[str]  # [unsubscriptable-object]
+
+
+# unsubscriptable types
+collections.abc.Hashable
+collections.abc.Sized
+collections.abc.Hashable[int]  # [unsubscriptable-object]
+collections.abc.Sized[int]  # [unsubscriptable-object]
+
+# subscriptable with Python 3.9
+collections.abc.ByteString[int]  # [unsubscriptable-object]
+
+
+# Missing implementation for 'collections.abc' derived classes
+class DerivedHashable(collections.abc.Hashable):  # [abstract-method]  # __hash__
+    pass
+
+class DerivedIterable(collections.abc.Iterable[int]):  # [unsubscriptable-object]
+    pass
+
+class DerivedCollection(collections.abc.Collection[int]):  # [unsubscriptable-object]
+    pass
+
+
+# No implementation required for 'builtins' and 'collections' types
+class DerivedList(list[int]):  # [unsubscriptable-object]
+    pass
+
+class DerivedSet(set[int]):  # [unsubscriptable-object]
+    pass
+
+class DerivedOrderedDict(collections.OrderedDict[int, str]):  # [unsubscriptable-object]
+    pass
+
+class DerivedListIterable(list[collections.abc.Iterable[int]]):  # [unsubscriptable-object,unsubscriptable-object]
+    pass
+
+
+# Multiple generic base classes
+class DerivedMultiple(collections.abc.Sized, collections.abc.Hashable):  # [abstract-method,abstract-method]
+    pass
+
+class CustomAbstractCls1(abc.ABC):
+    pass
+class CustomAbstractCls2(collections.abc.Sized, collections.abc.Iterable[CustomAbstractCls1]):  # [abstract-method,unsubscriptable-object]  # __len__
+    pass
+class CustomImplementation(CustomAbstractCls2):  # [abstract-method]  # __len__
+    pass
+
+
+# Type annotations
+var_tuple: tuple[int, int]  # [unsubscriptable-object]
+var_dict: dict[int, str]  # [unsubscriptable-object]
+var_orderedDict: collections.OrderedDict[int, str]  # [unsubscriptable-object]
+var_container: collections.abc.Container[int]  # [unsubscriptable-object]
+var_sequence: collections.abc.Sequence[int]  # [unsubscriptable-object]
+var_iterable: collections.abc.Iterable[int]  # [unsubscriptable-object]
+var_awaitable: collections.abc.Awaitable[int]  # [unsubscriptable-object]
+var_contextmanager: contextlib.AbstractContextManager[int]  # [unsubscriptable-object]
+var_pattern: re.Pattern[int]  # [unsubscriptable-object]
+var_bytestring: collections.abc.ByteString
+var_hashable: collections.abc.Hashable
+var_sized: collections.abc.Sized
+
+# Type annotation with unsubscriptable type
+var_int: int[int]  # [unsubscriptable-object]
+var_hashable2: collections.abc.Hashable[int]  # [unsubscriptable-object]
+var_sized2: collections.abc.Sized[int]  # [unsubscriptable-object]
+
+# subscriptable with Python 3.9
+var_bytestring2: collections.abc.ByteString[int]  # [unsubscriptable-object]