docstr: StreamQuery - AthenaQueryExecution - status_description
docstr_tok: ["StreamQuery","-","AthenaQueryExecution","-","status_description"]
code: def test_status_description(self):
      """StreamQuery - AthenaQueryExecution - status_description"""
      assert_equals(self._running_execution.status_description, None)
  
imports: from datetime import datetime
  from dateutil.tz import tzlocal
  from mock import MagicMock
  from nose.tools import assert_equals, assert_true, assert_false
  from streamalert.scheduled_queries.handlers.athena import AthenaClient, AthenaQueryExecution, AthenaQueryResult
label_desc: Use image node_id 6 for calling the TestAthenaQueryExecution obj's underlying member method code with example usage: obj.test_status_description() without return types