class_docstr: Classifier tests
docstr: Classifier - Run, No Records
docstr_tok: ["Classifier","-","Run",",","No","Records"]
code: def test_run_no_records(self, log_mock):
      """Classifier - Run, No Records"""
      self._classifier.run([])
      log_mock.assert_called_with("Number of incoming records: %d", 0)
  
imports: from collections import OrderedDict
  import os
  from mock import Mock, patch
  from nose.tools import assert_equal, assert_raises
  import streamalert.classifier.classifier
  from streamalert.classifier.classifier import Classifier
  from streamalert.shared.exceptions import ConfigError
label_desc: Use image node_id 26 for calling the TestClassifier obj's underlying member method code with example usage: obj.test_run_no_records(log_mock) without return types