code: def test_connection_success(self, mock_describe_object):
      hook = SalesforceHook("my_conn")
      status, msg = hook.test_connection()
      assert status is True
      assert msg == "Connection successfully tested"
  
imports: from __future__ import annotations
  import os
  from unittest import mock
  from unittest.mock import Mock, patch
  import numpy
  import pandas
  import pytest
  from requests import Session
  from simple_salesforce import Salesforce, api
  from airflow.models.connection import Connection
  from airflow.providers.salesforce.hooks.salesforce import SalesforceHook
  from airflow.utils.session import create_session
label_desc: Use image node_id 21 for calling the TestSalesforceHook obj's underlying member method code with example usage: obj.test_connection_success(mock_describe_object) without return types