1 files changed, 128 insertions, 0 deletions
diff --git a/tests/functional/p/postponed/postponed_evaluation_pep585_py39.py b/tests/functional/p/postponed/postponed_evaluation_pep585_py39.py
new file mode 100644
index 000000000..5354e081f
--- /dev/null
+++ b/tests/functional/p/postponed/postponed_evaluation_pep585_py39.py
@@ -0,0 +1,128 @@
+"""Test PEP 585 works as expected, starting with Python 3.9"""
+# pylint: disable=missing-docstring,unused-argument,unused-import,too-few-public-methods,invalid-name,inherit-non-class,unsupported-binary-operation,wrong-import-position,ungrouped-imports,unused-variable,unnecessary-direct-lambda-call
+import collections
+import dataclasses
+import typing
+from dataclasses import dataclass
+from typing import Any, Dict, NamedTuple, TypedDict, Union, Tuple
+
+
+AliasValid = list[int]
+
+class CustomIntList(typing.List[int]):
+    pass
+
+class CustomIntListError(list[int]):
+    pass
+
+cast_variable = [1, 2, 3]
+cast_variable = typing.cast(list[int], cast_variable)
+
+T = typing.TypeVar("T", list[int], str)
+
+(lambda x: 2)(list[int])
+
+
+# Check typing.NamedTuple
+CustomNamedTuple = typing.NamedTuple(
+    "CustomNamedTuple", [("my_var", list[int])])
+
+class CustomNamedTuple2(NamedTuple):
+    my_var: list[int]
+
+class CustomNamedTuple3(typing.NamedTuple):
+    my_var: list[int]
+
+
+# Check typing.TypedDict
+CustomTypedDict = TypedDict("CustomTypedDict", my_var=list[int])
+
+CustomTypedDict2 = TypedDict("CustomTypedDict2", {"my_var": list[int]})
+
+class CustomTypedDict3(TypedDict):
+    my_var: list[int]
+
+class CustomTypedDict4(typing.TypedDict):
+    my_var: list[int]
+
+
+# Check dataclasses
+def my_decorator(*args, **kwargs):
+    def wraps(*args, **kwargs):
+        pass
+    return wraps
+
+@dataclass
+class CustomDataClass:
+    my_var: list[int]
+
+@dataclasses.dataclass
+class CustomDataClass2:
+    my_var: list[int]
+
+@dataclass()
+class CustomDataClass3:
+    my_var: list[int]
+
+@my_decorator
+@dataclasses.dataclass
+class CustomDataClass4:
+    my_var: list[int]
+
+
+var1: set[int]
+var2: collections.OrderedDict[str, int]
+var3: dict[str, list[int]]
+var4: Dict[str, list[int]]
+var5: dict[tuple[int, int], str]
+var6: Dict[tuple[int, int], str]
+var7: list[list[int]]
+var8: tuple[list[int]]
+var9: int | list[str | int]
+var10: Union[list[str], None]
+var11: Union[Union[list[int], int]]
+
+def func(arg: list[int]):
+    pass
+
+def func2() -> list[int]:
+    pass
+
+Alias2 = Union[list[str], None]
+Alias3 = Union[Union[list[int], int]]
+Alias4 = Tuple[list[int]]
+Alias5 = Dict[str, list[int]]
+Alias6 = int | list[int]
+Alias7 = list[list[int]]
+
+
+import collections.abc
+import contextlib
+import re
+
+class OrderedDict:
+    pass
+
+var12: OrderedDict[str, int]  # [unsubscriptable-object]
+var13: list[int]
+var14: collections.OrderedDict[str, int]
+var15: collections.Counter[int]
+var16: collections.abc.Iterable[int]
+var17: contextlib.AbstractContextManager[int]
+var18: re.Pattern[str]
+
+
+def func3():
+    AliasInvalid2 = list[int]
+    cast_variable2 = [1, 2, 3]
+    cast_variable2 = typing.cast(list[int], cast_variable2)
+    var19: list[int]
+
+def func4(var=list[int]):
+    pass
+
+def func5(arg1: list[int], arg2=set[int]):
+    pass
+
+def func6(arg1: list[int], /, *args: tuple[str], arg2: set[int], **kwargs: dict[str, Any]):
+    pass