test_file.py 文件源码

def test_pickle_and_json_interop(self):
        # Write a file with a pickled OAuth2Credentials.
        credentials = self._create_test_credentials()

        credentials_file = open(FILENAME, 'wb')
        pickle.dump(credentials, credentials_file)
        credentials_file.close()

        # Storage should be not be able to read that object, as the capability
        # to read and write credentials as pickled objects has been removed.
        storage = file_module.Storage(FILENAME)
        read_credentials = storage.get()
        self.assertIsNone(read_credentials)

        # Now write it back out and confirm it has been rewritten as JSON
        storage.put(credentials)
        with open(FILENAME) as credentials_file:
            data = json.load(credentials_file)

        self.assertEquals(data['access_token'], 'foo')
        self.assertEquals(data['_class'], 'OAuth2Credentials')
        self.assertEquals(data['_module'], client.OAuth2Credentials.__module__)