def test_trait_from_trait_type_instance(self):
trait = Int()
result = trait_from(trait)
self.assertIsInstance(result, CTrait)
self.assertIs(result.handler, trait)
def test_trait_from_trait_factory(self):
int_trait_factory = TraitFactory(lambda: Int().as_ctrait())
with reset_trait_factory():
result = trait_from(int_trait_factory)
ct = int_trait_factory.as_ctrait()
self.assertIsInstance(result, CTrait)
self.assertIs(result, ct)
def test_trait_from_trait_type_class(self):
result = trait_from(Int)
self.assertIsInstance(result, CTrait)
self.assertIsInstance(result.handler, Int)
def test_trait_from_ctrait(self):
ct = Int().as_ctrait()
result = trait_from(ct)
self.assertIs(result, ct)
def test_trait_from_other(self):
result = trait_from(1)
self.assertIsInstance(result, CTrait)
self.assertIsInstance(result.handler, TraitCastType)
self.assertEqual(result.handler.aType, int)
def test_trait_from_none(self):
result = trait_from(None)
self.assertIsInstance(result, CTrait)
self.assertIsInstance(result.handler, Any)