def test_forwards_delete_if_enabled(self):
self.assertTrue(hasattr(self.obj.member, "attr"))
pp = utils.proxy_property("member", "attr", allow_delete=True)
pp.__delete__(self.obj)
self.assertFalse(hasattr(self.obj.member, "attr"))
def test_rejects_writes_if_readonly(self):
self.obj.member.attr = unittest.mock.sentinel.old_value
pp = utils.proxy_property("member", "attr", readonly=True)
with self.assertRaisesRegex(AttributeError, "can't set attribute"):
pp.__set__(self.obj, unittest.mock.sentinel.value)
self.assertEqual(self.obj.member.attr,
unittest.mock.sentinel.old_value)
def setUp(self):
self.obj = unittest.mock.Mock(["member"])
self.obj.member = unittest.mock.Mock(["attr"])
self.pp = utils.proxy_property("member", "attr")