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import unittest
import inspect
import types
import wrapt
DECORATORS_CODE = """
import wrapt
@wrapt.decorator
def passthru_decorator(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
"""
decorators = types.ModuleType("decorators")
exec(DECORATORS_CODE, decorators.__dict__, decorators.__dict__)
class class1:
pass
class1o = class1
class1d = decorators.passthru_decorator(class1)
class TestIntrospection(unittest.TestCase):
def test_getmembers(self):
class1o_members = inspect.getmembers(class1o)
class1d_members = inspect.getmembers(class1d)
class TestInheritance(unittest.TestCase):
def test_single_inheritance(self):
@wrapt.decorator
def passthru(wrapped, instance, args, kwargs):
return wrapped(*args, **kwargs)
@passthru
class BaseClass:
def __init__(self):
self.value = 1
class DerivedClass(BaseClass.__wrapped__):
def __init__(self):
super(DerivedClass, self).__init__()
self.value = 2
base = BaseClass()
self.assertEqual(type(base), BaseClass.__wrapped__)
self.assertTrue(isinstance(base, BaseClass.__wrapped__))
self.assertEqual(base.value, 1)
self.assertEqual(type(base).__mro__, (BaseClass.__wrapped__, object))
derived = DerivedClass()
self.assertEqual(type(derived), DerivedClass)
self.assertTrue(isinstance(derived, BaseClass.__wrapped__))
self.assertTrue(isinstance(derived, DerivedClass))
self.assertEqual(derived.value, 2)
self.assertEqual(
type(derived).__mro__, (DerivedClass, BaseClass.__wrapped__, object)
)
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