diff --git a/Lib/test/test_types.py b/Lib/test/test_types.py
index 9fe5812a14e15d..89548100da62d7 100644
--- a/Lib/test/test_types.py
+++ b/Lib/test/test_types.py
@@ -925,6 +925,35 @@ def test_or_type_operator_with_SpecialForm(self):
assert typing.Optional[int] | str == typing.Union[int, str, None]
assert typing.Union[int, bool] | str == typing.Union[int, bool, str]
+ def test_or_type_operator_with_Literal(self):
+ Literal = typing.Literal
+ self.assertEqual((Literal[1] | Literal[2]).__args__,
+ (Literal[1], Literal[2]))
+
+ self.assertEqual((Literal[0] | Literal[False]).__args__,
+ (Literal[0], Literal[False]))
+ self.assertEqual((Literal[1] | Literal[True]).__args__,
+ (Literal[1], Literal[True]))
+
+ self.assertEqual(Literal[1] | Literal[1], Literal[1])
+ self.assertEqual(Literal['a'] | Literal['a'], Literal['a'])
+
+ import enum
+ class Ints(enum.IntEnum):
+ A = 0
+ B = 1
+
+ self.assertEqual(Literal[Ints.A] | Literal[Ints.A], Literal[Ints.A])
+ self.assertEqual(Literal[Ints.B] | Literal[Ints.B], Literal[Ints.B])
+
+ self.assertEqual((Literal[Ints.B] | Literal[Ints.A]).__args__,
+ (Literal[Ints.B], Literal[Ints.A]))
+
+ self.assertEqual((Literal[0] | Literal[Ints.A]).__args__,
+ (Literal[0], Literal[Ints.A]))
+ self.assertEqual((Literal[1] | Literal[Ints.B]).__args__,
+ (Literal[1], Literal[Ints.B]))
+
def test_or_type_repr(self):
assert repr(int | str) == "int | str"
assert repr((int | str) | list) == "int | str | list"
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index b78ce1e4363071..f36bb958c88ef9 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -1805,6 +1805,11 @@ class Ints(enum.IntEnum):
A = 0
B = 1
+ self.assertEqual(Union[Literal[Ints.A], Literal[Ints.A]],
+ Literal[Ints.A])
+ self.assertEqual(Union[Literal[Ints.B], Literal[Ints.B]],
+ Literal[Ints.B])
+
self.assertEqual(Union[Literal[Ints.A], Literal[Ints.B]].__args__,
(Literal[Ints.A], Literal[Ints.B]))
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