test_traitlets_enum.py 文件源码

def test_assign_bad_enum_value_name__raises_error(self):
        # -- CONVERT: string => Enum value (item)
        bad_enum_names = ["UNKNOWN_COLOR", "RED", "Green", "blue2"]
        for value in bad_enum_names:
            example = self.Example()
            with self.assertRaises(TraitError):
                example.color = value