def test_check_trait_trait_type_instance(self):
trait = Int()
result = check_trait(trait)
self.assertIsInstance(result, CTrait)
self.assertIs(result.handler, trait)
def test_check_trait_trait_factory(self):
int_trait_factory = TraitFactory(lambda: Int().as_ctrait())
with reset_trait_factory():
result = check_trait(int_trait_factory)
ct = int_trait_factory.as_ctrait()
self.assertIsInstance(result, CTrait)
self.assertIs(result, ct)
def test_check_trait_other(self):
result = check_trait(1)
self.assertEqual(result, 1)
def test_check_trait_none(self):
result = check_trait(None)
self.assertIsNone(result)
def test_check_trait_trait_type_class(self):
result = check_trait(Int)
self.assertIsInstance(result, CTrait)
self.assertIsInstance(result.handler, Int)
def test_check_trait_ctrait(self):
ct = Int().as_ctrait()
result = check_trait(ct)
self.assertIs(result, ct)