def test_type():
class User:
pass
class BasicUser(User):
pass
class ProUser(User):
pass
class TeamUser(ProUser):
pass
assert isinstanceof(User, Type[User])
assert isinstanceof(BasicUser, Type[User])
assert isinstanceof(ProUser, Type[User])
assert isinstanceof(TeamUser, Type[User])
assert not isinstanceof(str, Type[User])
assert isinstanceof(str, Type[Any])
def test_any():
assert isinstanceof(None, Any)
assert isinstanceof(1, Any)
assert isinstanceof('1', Any)
def test_example_global_isinstanceof():
from typing import Union
from istype import isinstanceof
assert isinstanceof(1, Union[int, str])
def test_tuple():
assert isinstanceof((1, '1'), Tuple[int, str])
assert not isinstanceof((1, 1), Tuple[int, str])
def test_list_generic_empty():
assert isinstanceof([], typing.List[int])
def test_union():
assert isinstanceof(1, Union[int])
assert isinstanceof(1, Union[int, str])
assert isinstanceof(1, Union[int, Union[float, str]])
def test_optional():
assert isinstanceof('1', Optional[str])
assert isinstanceof(None, Optional[str])
assert not isinstanceof(1, Optional[str])
def test_collection_generic_empty():
assert isinstanceof([], typing.Collection[int])
def test_iterable_generic_empty():
assert isinstanceof([], typing.Iterable[int])
def test_frozenset():
assert isinstanceof(frozenset([1, '2']), frozenset)
def test_frozenset_generic():
assert isinstanceof(frozenset([1, 2]), typing.FrozenSet[int])
assert not isinstanceof(frozenset([1, '2']), typing.FrozenSet[int])
def test_set_generic():
assert isinstanceof(set([1, 2]), typing.Set[int])
assert not isinstanceof(set([1, '2']), typing.Set[int])
def test_set():
assert isinstanceof(set([1, '2']), set)
def test_list_generic():
assert isinstanceof([1, 1], typing.List[int])
assert not isinstanceof([1, '1'], typing.List[int])
assert isinstanceof([1, '1'], typing.List[object])
def test_anystr():
assert not isinstanceof(None, AnyStr)
assert not isinstanceof([1, '1'], AnyStr)
assert isinstanceof('1', AnyStr)
assert isinstanceof(b'1', AnyStr)
def test_dict():
assert isinstanceof({'2': 1}, dict)
def test_class_var():
assert not isinstanceof(None, ClassVar[int])
assert isinstanceof(1, ClassVar[int])
assert not isinstanceof(1, ClassVar[str])
def test_dict_generic():
assert isinstanceof({1: '2'}, typing.Dict[int, str])
assert not isinstanceof({'2': 1}, typing.Dict[int, str])
def test_union_complex():
assert isinstanceof([1], Union[int, List[int]])
def test_mutable_mapping():
assert isinstanceof({'2': 1}, collections.abc.MutableMapping)
def test_optional_with_union():
assert isinstanceof('1', Optional[Union[str, int]])
assert isinstanceof(1, Optional[Union[str, int]])
assert isinstanceof(None, Optional[Union[str, int]])
assert not isinstanceof(1.1, Optional[Union[str, int]])
def test_mutable_mapping_generic():
assert isinstanceof({1: '2'}, typing.MutableMapping[int, str])
assert not isinstanceof({'2': 1}, typing.MutableMapping[int, str])
def checked_cast(type: Type[_T], obj: Any) -> _T:
"""
Method for executing a safe cast in python
"""
assert istype.isinstanceof(obj, type)
return obj # type: ignore
def test_list():
assert isinstanceof([], list) is isinstance([], list)
