def test_as_ctrait_from_instance(self):
trait = Int()
result = as_ctrait(trait)
self.assertIsInstance(result, CTrait)
self.assertIs(result.handler, trait)
def test_as_ctrait_from_trait_factory(self):
int_trait_factory = TraitFactory(lambda: Int().as_ctrait())
with reset_trait_factory():
result = as_ctrait(int_trait_factory)
ct = int_trait_factory.as_ctrait()
self.assertIsInstance(result, CTrait)
self.assertIs(result, ct)
def test_as_ctrait_raise_exception(self):
with self.assertRaises(TypeError):
as_ctrait(1)
with self.assertRaises(TypeError):
as_ctrait(int)
def test_as_ctrait_from_class(self):
result = as_ctrait(Int)
self.assertIsInstance(result, CTrait)
self.assertIsInstance(result.handler, Int)
def test_as_ctrait_from_ctrait(self):
ct = Int().as_ctrait()
result = as_ctrait(ct)
self.assertIs(result, ct)