Class AllTests

Lib/test/test_typing.py:10855–10899

Tests for __all__.

class AllTests(BaseTestCase):
    """Tests for __all__."""

    def test_all(self):
        from typing import __all__ as a
        # Just spot-check the first and last of every category.
        self.assertIn('AbstractSet', a)
        self.assertIn('ValuesView', a)
        self.assertIn('cast', a)
        self.assertIn('overload', a)
        # Context managers.
        self.assertIn('ContextManager', a)
        self.assertIn('AsyncContextManager', a)
        # Check that former namespaces io and re are not exported.
        self.assertNotIn('io', a)
        self.assertNotIn('re', a)
        # Spot-check that stdlib modules aren't exported.
        self.assertNotIn('os', a)
        self.assertNotIn('sys', a)
        # Check that Text is defined.
        self.assertIn('Text', a)
        # Check previously missing classes.
        self.assertIn('SupportsBytes', a)
        self.assertIn('SupportsComplex', a)

    def test_all_exported_names(self):
        # ensure all dynamically created objects are actualised
        for name in typing.__all__:
            getattr(typing, name)

        actual_all = set(typing.__all__)
        computed_all = {
            k for k, v in vars(typing).items()
            # explicitly exported, not a thing with __module__
            if k in actual_all or (
                # avoid private names
                not k.startswith('_') and
                # there's a few types and metaclasses that aren't exported
                not k.endswith(('Meta', '_contra', '_co')) and
                not k.upper() == k and
                # but export all things that have __module__ == 'typing'
                getattr(v, '__module__', None) == typing.__name__
            )
        }
        self.assertSetEqual(computed_all, actual_all)


class TypeIterationTests(BaseTestCase):