diff options
| -rw-r--r-- | Lib/test/test_type_aliases.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Lib/test/test_type_aliases.py b/Lib/test/test_type_aliases.py index 0ce97f5..8f0a998 100644 --- a/Lib/test/test_type_aliases.py +++ b/Lib/test/test_type_aliases.py @@ -168,6 +168,24 @@ class TypeParamsAliasValueTest(unittest.TestCase): self.assertEqual(repr(GenericRecursive[GenericRecursive[int]]), "GenericRecursive[GenericRecursive[int]]") + def test_raising(self): + type MissingName = list[_My_X] + with self.assertRaisesRegex( + NameError, + "cannot access free variable '_My_X' where it is not associated with a value", + ): + MissingName.__value__ + _My_X = int + self.assertEqual(MissingName.__value__, list[int]) + del _My_X + # Cache should still work: + self.assertEqual(MissingName.__value__, list[int]) + + # Explicit exception: + type ExprException = 1 / 0 + with self.assertRaises(ZeroDivisionError): + ExprException.__value__ + class TypeAliasConstructorTest(unittest.TestCase): def test_basic(self): |