diff options
Diffstat (limited to 'Lib/test/test_isinstance.py')
| -rw-r--r-- | Lib/test/test_isinstance.py | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Lib/test/test_isinstance.py b/Lib/test/test_isinstance.py index 53639e9..91e79c2 100644 --- a/Lib/test/test_isinstance.py +++ b/Lib/test/test_isinstance.py @@ -4,6 +4,7 @@ import unittest import sys +import typing @@ -208,6 +209,25 @@ class TestIsInstanceIsSubclass(unittest.TestCase): self.assertEqual(False, isinstance(AbstractChild(), Super)) self.assertEqual(False, isinstance(AbstractChild(), Child)) + def test_isinstance_with_or_union(self): + self.assertTrue(isinstance(Super(), Super | int)) + self.assertFalse(isinstance(None, str | int)) + self.assertTrue(isinstance(3, str | int)) + self.assertTrue(isinstance("", str | int)) + self.assertTrue(isinstance([], typing.List | typing.Tuple)) + self.assertTrue(isinstance(2, typing.List | int)) + self.assertFalse(isinstance(2, typing.List | typing.Tuple)) + self.assertTrue(isinstance(None, int | None)) + self.assertFalse(isinstance(3.14, int | str)) + with self.assertRaises(TypeError): + isinstance(2, list[int]) + with self.assertRaises(TypeError): + isinstance(2, list[int] | int) + with self.assertRaises(TypeError): + isinstance(2, int | str | list[int] | float) + + + def test_subclass_normal(self): # normal classes self.assertEqual(True, issubclass(Super, Super)) @@ -217,6 +237,8 @@ class TestIsInstanceIsSubclass(unittest.TestCase): self.assertEqual(True, issubclass(Child, Child)) self.assertEqual(True, issubclass(Child, Super)) self.assertEqual(False, issubclass(Child, AbstractSuper)) + self.assertTrue(issubclass(typing.List, typing.List|typing.Tuple)) + self.assertFalse(issubclass(int, typing.List|typing.Tuple)) def test_subclass_abstract(self): # abstract classes @@ -251,6 +273,16 @@ class TestIsInstanceIsSubclass(unittest.TestCase): # blown self.assertRaises(RecursionError, blowstack, isinstance, '', str) + def test_subclass_with_union(self): + self.assertTrue(issubclass(int, int | float | int)) + self.assertTrue(issubclass(str, str | Child | str)) + self.assertFalse(issubclass(dict, float|str)) + self.assertFalse(issubclass(object, float|str)) + with self.assertRaises(TypeError): + issubclass(2, Child | Super) + with self.assertRaises(TypeError): + issubclass(int, list[int] | Child) + def test_issubclass_refcount_handling(self): # bpo-39382: abstract_issubclass() didn't hold item reference while # peeking in the bases tuple, in the single inheritance case. |