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from typing import Callable, List, Set
from unittest import TestCase
from test_resources import some_module
from typish import Something, TypingType
Inyerface = Something[{
'a': int,
'b': Callable[[int, int], str],
}]
class C1:
a = 42
def b(self, a: int, b: int) -> str:
return str(a + b)
class C2:
def __init__(self):
self.a = 42
def b(self, a: int, b: int) -> str:
return str(a + b)
class C3:
def __init__(self):
self.a = 42
def b(self, a, b):
return str(a + b)
class C4:
def __init__(self):
self.a = 42
def b(self, a, b: str):
return str(a + b)
class C5:
a = 42
@staticmethod
def b(a: int, b: int) -> str:
return str(a + b)
class C6:
a = 42
@classmethod
def b(cls, a: int, b: int) -> str:
return str(a + b)
class TestSomething(TestCase):
def test_something_with_slices(self):
self.assertEqual(Inyerface, Something['a': int, 'b': Callable[[int, int], str]])
def test_something_instance_check(self):
self.assertTrue(isinstance(C1(), Inyerface))
self.assertTrue(isinstance(C2(), Inyerface))
self.assertTrue(not isinstance(C3(), Inyerface))
self.assertTrue(not isinstance(C4(), Inyerface))
self.assertTrue(isinstance(C5(), Inyerface))
self.assertTrue(isinstance(C6(), Inyerface))
def test_something_subclass_check(self):
self.assertTrue(issubclass(C1, Inyerface))
self.assertTrue(issubclass(C2, Inyerface))
self.assertTrue(not issubclass(C3, Inyerface))
self.assertTrue(not issubclass(C4, Inyerface))
self.assertTrue(issubclass(C5, Inyerface))
self.assertTrue(issubclass(C6, Inyerface))
def test_module_something_instance_check(self):
self.assertTrue(isinstance(some_module, Inyerface))
def test_something_repr(self):
self.assertEqual("typish.Something['x': int]", str(Something['x': int]))
self.assertEqual("typish.Something['a': int, 'b': typing.Callable[[int, int], str]]",
repr(Inyerface))
self.assertEqual("typish.Something['x': ...]", str(Something['x': ...]))
self.assertEqual("typish.Something['x': C1]", str(Something['x': C1]))
self.assertEqual("typish.Something['x': b]", str(Something['x': C5.b]))
def test_isinstance_generic_collection(self):
isinstance(List[int], TypingType)
isinstance(Set[str], TypingType)
def test_hash_something(self):
# If the lines below raise no errors, the test succeeds.
hash(Something['abc': int])
L = List[Something['abc': int]]