test_converter.py 文件源码

def testNoneResult_raisesException(self, patch_convert):
        from graphene_gae.ndb.converter import convert_ndb_property
        patch_convert.get.return_value = lambda *_: None
        with self.assertRaises(Exception) as context:
            prop = ndb.StringProperty()
            prop._code_name = "my_prop"
            convert_ndb_property(prop)

        expected_message = 'Failed to convert NDB propeerty to a GraphQL field my_prop (StringProperty())'
        self.assertTrue(expected_message in context.exception.message, msg=context.exception.message)