code: def test_s3_upload_prefix(schema: str, upload_prefix: str) -> None:
      mock_database = mock.MagicMock()
      mock_database.id = 1
  
      assert (
          app.config["CSV_TO_HIVE_UPLOAD_DIRECTORY_FUNC"](
              database=mock_database,
              user=mock.MagicMock(),
              schema=schema,
          )
          == upload_prefix
      )
  
imports: from unittest import mock
  import pytest
  import pandas
  from sqlalchemy.sql import select
  from superset.db_engine_specs.hive import HiveEngineSpec, upload_to_s3
  from superset.exceptions import SupersetException
  from superset.sql_parse import Table, ParsedQuery
  from tests.integration_tests.test_app import app
label_desc: Use image node_id 16 for calling a global function with example usage: test_s3_upload_prefix(schema, upload_prefix) without return types