class_docstr: RegisterInput tests
class_docstr_tok: ["RegisterInput","tests"]
docstr: RegisterInput - Load For Service, Error
docstr_tok: ["RegisterInput","-","Load","For","Service",",","Error"]
code: def test_load_for_service_error(self, log_mock):
      """RegisterInput - Load For Service, Error"""
      service = "foobarbaz"
      assert_equal(
          RegisterInput.load_for_service(service, None, None), False
      )
      log_mock.assert_called_with(
          "Requested payload service [%s] does not exist", service
      )
  
file_path: streamalert/tests/unit/streamalert/classifier/payload/test_payload_base.py
imports: import json
  from mock import patch
  from nose.tools import assert_equal
  from streamalert.classifier.payload.payload_base import RegisterInput, StreamPayload
label_desc: Use image node_id 3 for calling the TestRegisterInput obj's underlying member method code with example usage: obj.test_load_for_service_error(log_mock) without return types