diff options
Diffstat (limited to 'Lib/test/test_typing.py')
| -rw-r--r-- | Lib/test/test_typing.py | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 6ef633e4545..246be22a0d8 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -8487,6 +8487,36 @@ class TypedDictTests(BaseTestCase): self.assertEqual(Child.__required_keys__, frozenset(['a'])) self.assertEqual(Child.__optional_keys__, frozenset()) + def test_inheritance_pep563(self): + def _make_td(future, class_name, annos, base, extra_names=None): + lines = [] + if future: + lines.append('from __future__ import annotations') + lines.append('from typing import TypedDict') + lines.append(f'class {class_name}({base}):') + for name, anno in annos.items(): + lines.append(f' {name}: {anno}') + code = '\n'.join(lines) + ns = run_code(code, extra_names) + return ns[class_name] + + for base_future in (True, False): + for child_future in (True, False): + with self.subTest(base_future=base_future, child_future=child_future): + base = _make_td( + base_future, "Base", {"base": "int"}, "TypedDict" + ) + self.assertIsNotNone(base.__annotate__) + child = _make_td( + child_future, "Child", {"child": "int"}, "Base", {"Base": base} + ) + base_anno = ForwardRef("int", module="builtins") if base_future else int + child_anno = ForwardRef("int", module="builtins") if child_future else int + self.assertEqual(base.__annotations__, {'base': base_anno}) + self.assertEqual( + child.__annotations__, {'child': child_anno, 'base': base_anno} + ) + def test_required_notrequired_keys(self): self.assertEqual(NontotalMovie.__required_keys__, frozenset({"title"})) |