test_ast.py 文件源码

def test_arguments(self):
        x = ast.arguments()
        self.assertEqual(x._fields, ('args', 'vararg', 'varargannotation',
                                      'kwonlyargs', 'kwarg', 'kwargannotation',
                                      'defaults', 'kw_defaults'))

        with self.assertRaises(AttributeError):
            x.vararg

        x = ast.arguments(*range(1, 9))
        self.assertEqual(x.vararg, 2)