docstr: Tests RuntimeError is thrown if the response is malformed
docstr_tok: ["Tests","RuntimeError","is","thrown","if","the","response","is","malformed"]
code: def test_try_s3_download_fails_on_bad_response(self, mock_s3):
      """
      Tests RuntimeError is thrown if the response is malformed
      """
      key_prefix = "some/key/prefix"
      mock_s3.list_objects_v2.return_value = {
          "something": "not quite right"
      }
  
      with self.assertRaises(RuntimeError):
          try_s3_download(
              bucket="bucket", s3_key_prefix=key_prefix, destination=""
          )
  
imports: import unittest
  from unittest.mock import MagicMock, mock_open, patch
  from artifact_repository import *
label_desc: Use image node_id 29 for calling the TestArtifactRepositoryTool obj's underlying member method code with example usage: obj.test_try_s3_download_fails_on_bad_response(mock_s3) without return types