testmock.py 文件源码

def test_attribute_access_returns_mocks(self):
        mock = Mock()
        something = mock.something
        self.assertTrue(is_instance(something, Mock), "attribute isn't a mock")
        self.assertEqual(mock.something, something,
                         "different attributes returned for same name")

        # Usage example
        mock = Mock()
        mock.something.return_value = 3

        self.assertEqual(mock.something(), 3, "method returned wrong value")
        self.assertTrue(mock.something.called,
                        "method didn't record being called")