def METHOD_NAME(self, requests_mock):
    requests_mock.post.return_value.status_code = 200
    requests_mock.post.return_value.content = "I am not a json, I am a free man!"
    checksums = get_available_checksums_from_remote(
        test_channel_id, self.location.id
    )
    self.assertIsNone(checksums)