def test_monkeypatch_callable_non_callable(self):
tester = self
class MyClass:
pass
@monkeypatch(MyClass, methodname='prop1')
@property
def meth1(self):
return 12
class XXX(object):
def __call__(self, other):
tester.assertTrue(isinstance(other, MyClass))
return 12
try:
monkeypatch(MyClass)(XXX())
except AttributeError as err:
self.assertTrue(
str(err).endswith(
'has no __name__ attribute: you should provide an explicit `methodname`'
))
monkeypatch(MyClass, 'foo')(XXX())
self.assertTrue(isinstance(MyClass.prop1, property))
self.assertTrue(isinstance(MyClass.foo, collections.Callable))
self.assertEqual(MyClass().prop1, 12)
self.assertEqual(MyClass().foo(), 12)
def test_monkeypatch_arbitrary_callable(self):
class MyClass: pass
class ArbitraryCallable(object):
def __call__(self):
return 12
# ensure it complains about missing __name__
with self.assertRaises(AttributeError) as cm:
monkeypatch(MyClass)(ArbitraryCallable())
self.assertTrue(str(cm.exception).endswith('has no __name__ attribute: you should provide an explicit `methodname`'))
# ensure no black magic under the hood
monkeypatch(MyClass, 'foo')(ArbitraryCallable())
self.assertTrue(callable(MyClass.foo))
self.assertEqual(MyClass().foo(), 12)
def test_monkeypatch_callable_non_callable(self):
tester = self
class MyClass: pass
@monkeypatch(MyClass, methodname='prop1')
@property
def meth1(self):
return 12
class XXX(object):
def __call__(self, other):
tester.assertTrue(isinstance(other, MyClass))
return 12
try:
monkeypatch(MyClass)(XXX())
except AttributeError, err:
self.assertTrue(str(err).endswith('has no __name__ attribute: you should provide an explicit `methodname`'))
def test_monkeypatch_arbitrary_callable(self):
class MyClass:
pass
class ArbitraryCallable(object):
def __call__(self):
return 12
# ensure it complains about missing __name__
with self.assertRaises(AttributeError) as cm:
monkeypatch(MyClass)(ArbitraryCallable())
self.assertTrue(
str(cm.exception).endswith(
'has no __name__ attribute: you should provide an explicit `methodname`'
))
# ensure no black magic under the hood
monkeypatch(MyClass, 'foo')(ArbitraryCallable())
self.assertTrue(callable(MyClass.foo))
self.assertEqual(MyClass().foo(), 12)
class DecoratorsTC(TestCase):
def test_monkeypatch_instance_method(self):
class MyClass:
pass
@monkeypatch(MyClass)
def meth1(self):
return 12
class XXX(object):
@monkeypatch(MyClass)
def meth2(self):
return 12
self.assertTrue(isinstance(MyClass.meth1, types.MethodType))
self.assertTrue(isinstance(MyClass.meth2, types.MethodType))
def test_monkeypatch_callable_non_callable(self):
tester = self
class MyClass:
pass
@monkeypatch(MyClass, methodname='prop1')
@property
def meth1(self):
return 12
class XXX(object):
def __call__(self, other):
tester.assertTrue(isinstance(other, MyClass))
return 12
try:
monkeypatch(MyClass)(XXX())
except AttributeError, err:
self.assertTrue(
str(err).endswith(
'has no __name__ attribute: you should provide an explicit `methodname`'
))
monkeypatch(MyClass, 'foo')(XXX())
self.assertTrue(isinstance(MyClass.prop1, property))
self.assertTrue(callable(MyClass.foo))
self.assertEqual(MyClass().prop1, 12)
self.assertEqual(MyClass().foo(), 12)