code: def test_http(self):
      self.fp.write("[TabPy]\n" "TABPY_TRANSFER_PROTOCOL = http")
      self.fp.close()
  
      app = TabPyApp(self.fp.name)
      self.assertEqual(app.settings["transfer_protocol"], "http")
  
imports: import os
  import unittest
  from tempfile import NamedTemporaryFile
  import tabpy
  from tabpy.tabpy_server.app.util import validate_cert
  from tabpy.tabpy_server.app.app import TabPyApp
  from unittest.mock import patch
label_desc: Use image node_id 8 for calling the TestTransferProtocolValidation obj's underlying member method code with example usage: obj.test_http() without return types