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gh-103395: Improve `typing._GenericAlias.__dir__` coverage (#103396)

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Nikita Sobolev 2023-04-10 14:09:19 +03:00 committed by GitHub
parent ecad802e3f
commit a28e2ce3fb
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1 changed files with 61 additions and 2 deletions
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63
Lib/test/test_typing.py
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@ -855,6 +855,14 @@ class UnpackTests(BaseTestCase):
(*tuple[int],)
Unpack[Tuple[int]]
def test_dir(self):
dir_items = set(dir(Unpack[Tuple[int]]))
for required_item in [
'__args__', '__parameters__', '__origin__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
def test_rejects_multiple_types(self):
with self.assertRaises(TypeError):
Unpack[Tuple[int], Tuple[str]]
@ -1699,6 +1707,14 @@ class UnionTests(BaseTestCase):
u = Optional[str]
self.assertEqual(repr(u), 'typing.Optional[str]')
def test_dir(self):
dir_items = set(dir(Union[str, int]))
for required_item in [
'__args__', '__parameters__', '__origin__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
def test_cannot_subclass(self):
with self.assertRaisesRegex(TypeError,
r'Cannot subclass typing\.Union'):
@ -1839,6 +1855,15 @@ class BaseCallableTests:
self.assertNotEqual(C, Callable[..., int])
self.assertNotEqual(C, Callable)
def test_dir(self):
Callable = self.Callable
dir_items = set(dir(Callable[..., int]))
for required_item in [
'__args__', '__parameters__', '__origin__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
def test_cannot_instantiate(self):
Callable = self.Callable
with self.assertRaises(TypeError):
@ -2151,6 +2176,14 @@ class LiteralTests(BaseTestCase):
self.assertEqual(repr(Literal[None]), "typing.Literal[None]")
self.assertEqual(repr(Literal[1, 2, 3, 3]), "typing.Literal[1, 2, 3]")
def test_dir(self):
dir_items = set(dir(Literal[1, 2, 3]))
for required_item in [
'__args__', '__parameters__', '__origin__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
def test_cannot_init(self):
with self.assertRaises(TypeError):
Literal()
@ -7315,6 +7348,15 @@ class AnnotatedTests(BaseTestCase):
"typing.Annotated[typing.List[int], 4, 5]"
)
def test_dir(self):
dir_items = set(dir(Annotated[int, 4]))
for required_item in [
'__args__', '__parameters__', '__origin__',
'__metadata__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
def test_flatten(self):
A = Annotated[Annotated[int, 4], 5]
self.assertEqual(A, Annotated[int, 4, 5])
@ -8033,6 +8075,15 @@ class ConcatenateTests(BaseTestCase):
c = Concatenate[MyClass, P]
self.assertNotEqual(c, Concatenate)
def test_dir(self):
P = ParamSpec('P')
dir_items = set(dir(Concatenate[int, P]))
for required_item in [
'__args__', '__parameters__', '__origin__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
def test_valid_uses(self):
P = ParamSpec('P')
T = TypeVar('T')
@ -8310,10 +8361,18 @@ class SpecialAttrsTests(BaseTestCase):
def bar(self):
pass
baz = 3
__magic__ = 4
# The class attributes of the original class should be visible even
# in dir() of the GenericAlias. See bpo-45755.
self.assertIn('bar', dir(Foo[int]))
self.assertIn('baz', dir(Foo[int]))
dir_items = set(dir(Foo[int]))
for required_item in [
'bar', 'baz',
'__args__', '__parameters__', '__origin__',
]:
with self.subTest(required_item=required_item):
self.assertIn(required_item, dir_items)
self.assertNotIn('__magic__', dir_items)
class RevealTypeTests(BaseTestCase):