docstr: StreamQuery - AthenaQueryResult - query_execution
docstr_tok: ["StreamQuery","-","AthenaQueryResult","-","query_execution"]
code: def test_query_execution(self):
      """StreamQuery - AthenaQueryResult - query_execution"""
      assert_true(
          isinstance(self._result.query_execution, AthenaQueryExecution)
      )
  
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 3 for calling the TestAthenaQueryResult obj's underlying member method code with example usage: obj.test_query_execution() without return types