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import collections.abc
import pickle
import sys
import typing
import warnings
from contextlib import contextmanager
from unittest import TestCase, main
from mypy_extensions import TypedDict, i64, i32, i16, u8
class BaseTestCase(TestCase):
def assertIsSubclass(self, cls, class_or_tuple, msg=None):
if not issubclass(cls, class_or_tuple):
message = '%r is not a subclass of %r' % (cls, class_or_tuple)
if msg is not None:
message += ' : %s' % msg
raise self.failureException(message)
def assertNotIsSubclass(self, cls, class_or_tuple, msg=None):
if issubclass(cls, class_or_tuple):
message = '%r is a subclass of %r' % (cls, class_or_tuple)
if msg is not None:
message += ' : %s' % msg
raise self.failureException(message)
with warnings.catch_warnings():
warnings.simplefilter("ignore", category=DeprecationWarning)
Label = TypedDict('Label', [('label', str)])
class Point2D(TypedDict):
x: int
y: int
class LabelPoint2D(Point2D, Label): ...
class Options(TypedDict, total=False):
log_level: int
log_path: str
class TypedDictTests(BaseTestCase):
@contextmanager
def assert_typeddict_deprecated(self):
with self.assertWarnsRegex(
DeprecationWarning, "mypy_extensions.TypedDict is deprecated"
):
yield
def test_basics_iterable_syntax(self):
with self.assert_typeddict_deprecated():
Emp = TypedDict('Emp', {'name': str, 'id': int})
self.assertIsSubclass(Emp, dict)
self.assertIsSubclass(Emp, typing.MutableMapping)
self.assertNotIsSubclass(Emp, collections.abc.Sequence)
jim = Emp(name='Jim', id=1)
self.assertIs(type(jim), dict)
self.assertEqual(jim['name'], 'Jim')
self.assertEqual(jim['id'], 1)
self.assertEqual(Emp.__name__, 'Emp')
self.assertEqual(Emp.__module__, __name__)
self.assertEqual(Emp.__bases__, (dict,))
self.assertEqual(Emp.__annotations__, {'name': str, 'id': int})
self.assertEqual(Emp.__total__, True)
def test_basics_keywords_syntax(self):
with self.assert_typeddict_deprecated():
Emp = TypedDict('Emp', name=str, id=int)
self.assertIsSubclass(Emp, dict)
self.assertIsSubclass(Emp, typing.MutableMapping)
self.assertNotIsSubclass(Emp, collections.abc.Sequence)
jim = Emp(name='Jim', id=1) # type: ignore # mypy doesn't support keyword syntax yet
self.assertIs(type(jim), dict)
self.assertEqual(jim['name'], 'Jim')
self.assertEqual(jim['id'], 1)
self.assertEqual(Emp.__name__, 'Emp')
self.assertEqual(Emp.__module__, __name__)
self.assertEqual(Emp.__bases__, (dict,))
self.assertEqual(Emp.__annotations__, {'name': str, 'id': int})
self.assertEqual(Emp.__total__, True)
def test_typeddict_errors(self):
with self.assert_typeddict_deprecated():
Emp = TypedDict('Emp', {'name': str, 'id': int})
self.assertEqual(TypedDict.__module__, 'mypy_extensions')
jim = Emp(name='Jim', id=1)
with self.assertRaises(TypeError):
isinstance({}, Emp) # type: ignore
with self.assertRaises(TypeError):
isinstance(jim, Emp) # type: ignore
with self.assertRaises(TypeError):
issubclass(dict, Emp) # type: ignore
with self.assertRaises(TypeError), self.assert_typeddict_deprecated():
TypedDict('Hi', x=())
with self.assertRaises(TypeError), self.assert_typeddict_deprecated():
TypedDict('Hi', [('x', int), ('y', ())])
with self.assertRaises(TypeError):
TypedDict('Hi', [('x', int)], y=int)
def test_py36_class_syntax_usage(self):
self.assertEqual(LabelPoint2D.__name__, 'LabelPoint2D') # noqa
self.assertEqual(LabelPoint2D.__module__, __name__) # noqa
self.assertEqual(LabelPoint2D.__annotations__, {'x': int, 'y': int, 'label': str}) # noqa
self.assertEqual(LabelPoint2D.__bases__, (dict,)) # noqa
self.assertEqual(LabelPoint2D.__total__, True) # noqa
self.assertNotIsSubclass(LabelPoint2D, typing.Sequence) # noqa
not_origin = Point2D(x=0, y=1) # noqa
self.assertEqual(not_origin['x'], 0)
self.assertEqual(not_origin['y'], 1)
other = LabelPoint2D(x=0, y=1, label='hi') # noqa
self.assertEqual(other['label'], 'hi')
def test_py36_class_usage_emits_deprecations(self):
with self.assert_typeddict_deprecated():
class Foo(TypedDict):
bar: int
def test_pickle(self):
global EmpD # pickle wants to reference the class by name
with self.assert_typeddict_deprecated():
EmpD = TypedDict('EmpD', name=str, id=int)
jane = EmpD({'name': 'jane', 'id': 37})
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
z = pickle.dumps(jane, proto)
jane2 = pickle.loads(z)
self.assertEqual(jane2, jane)
self.assertEqual(jane2, {'name': 'jane', 'id': 37})
ZZ = pickle.dumps(EmpD, proto)
EmpDnew = pickle.loads(ZZ)
self.assertEqual(EmpDnew({'name': 'jane', 'id': 37}), jane)
def test_optional(self):
with self.assert_typeddict_deprecated():
EmpD = TypedDict('EmpD', name=str, id=int)
self.assertEqual(typing.Optional[EmpD], typing.Union[None, EmpD])
self.assertNotEqual(typing.List[EmpD], typing.Tuple[EmpD])
def test_total(self):
with self.assert_typeddict_deprecated():
D = TypedDict('D', {'x': int}, total=False)
self.assertEqual(D(), {})
self.assertEqual(D(x=1), {'x': 1})
self.assertEqual(D.__total__, False)
self.assertEqual(Options(), {}) # noqa
self.assertEqual(Options(log_level=2), {'log_level': 2}) # noqa
self.assertEqual(Options.__total__, False) # noqa
native_int_types = [i64, i32, i16, u8]
class MypycNativeIntTests(TestCase):
def test_construction(self):
for native_int in native_int_types:
self.assert_same(native_int(), 0)
self.assert_same(native_int(0), 0)
self.assert_same(native_int(1), 1)
self.assert_same(native_int(-3), -3)
self.assert_same(native_int(2**64), 2**64)
self.assert_same(native_int(-2**64), -2**64)
self.assert_same(native_int(1.234), 1)
self.assert_same(native_int(2.634), 2)
self.assert_same(native_int(-1.234), -1)
self.assert_same(native_int(-2.634), -2)
self.assert_same(native_int("0"), 0)
self.assert_same(native_int("123"), 123)
self.assert_same(native_int("abc", 16), 2748)
self.assert_same(native_int("-101", base=2), -5)
def test_isinstance(self):
for native_int in native_int_types:
assert isinstance(0, native_int)
assert isinstance(1234, native_int)
assert isinstance(True, native_int)
assert not isinstance(1.0, native_int)
def test_docstring(self):
for native_int in native_int_types:
# Just check that a docstring exists
assert native_int.__doc__
def assert_same(self, x, y):
assert type(x) is type(y)
assert x == y
class DeprecationTests(TestCase):
def test_no_return_deprecation(self):
del sys.modules["mypy_extensions"]
with self.assertWarnsRegex(
DeprecationWarning, "'mypy_extensions.NoReturn' is deprecated"
):
import mypy_extensions
mypy_extensions.NoReturn
del sys.modules["mypy_extensions"]
with self.assertWarnsRegex(
DeprecationWarning, "'mypy_extensions.NoReturn' is deprecated"
):
from mypy_extensions import NoReturn # noqa: F401
if __name__ == '__main__':
main()
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