1 files changed, 36 insertions, 0 deletions
diff --git a/tests/functional/g/generic_alias/generic_alias_mixed_py39.py b/tests/functional/g/generic_alias/generic_alias_mixed_py39.py
new file mode 100644
index 000000000..9c6e63e66
--- /dev/null
+++ b/tests/functional/g/generic_alias/generic_alias_mixed_py39.py
@@ -0,0 +1,36 @@
+"""Test generic alias support with mix of typing.py and stdlib types (PY39+)."""
+# flake8: noqa
+# pylint: disable=missing-docstring,pointless-statement
+# pylint: disable=too-few-public-methods,multiple-statements,line-too-long
+import collections
+import collections.abc
+import contextlib
+import re
+import typing
+
+# Type annotations
+var_orderedDict: collections.OrderedDict[int, str]
+var_container: collections.abc.Container[int]
+var_sequence: collections.abc.Sequence[int]
+var_iterable: collections.abc.Iterable[int]
+var_awaitable: collections.abc.Awaitable[int]
+var_pattern: re.Pattern[int]
+var_bytestring: collections.abc.ByteString
+var_hashable: collections.abc.Hashable
+var_ContextManager: contextlib.AbstractContextManager[int]
+
+
+# No implementation required for 'builtins'
+class DerivedListIterable(typing.List[typing.Iterable[int]]):
+    pass
+
+
+# Missing implementation for 'collections.abc' derived classes
+class DerivedHashable(typing.Hashable):  # [abstract-method]  # __hash__
+    pass
+
+class DerivedIterable(typing.Iterable[int]):  # [abstract-method]  # __iter__
+    pass
+
+class DerivedCollection(typing.Collection[int]):  # [abstract-method,abstract-method,abstract-method]  # __contains__, __iter__, __len__
+    pass