class_docstr: Testing Row Level Security
class_docstr_tok: ["Testing","Row","Level","Security"]
code: def _get_test_dataset(self):
      return (
          db.session.query(SqlaTable).filter(
              SqlaTable.table_name == "table1"
          )
      ).one_or_none()
  
imports: import re
  from typing import Any, Optional
  from unittest import mock
  import pytest
  from flask import g
  import json
  import prison
  from superset import db, security_manager, app
  from superset.connectors.sqla.models import RowLevelSecurityFilter, SqlaTable
  from superset.security.guest_token import GuestTokenResourceType, GuestUser
  from flask_babel import lazy_gettext
  from flask_appbuilder.models.sqla import filters
  from ..conftest import with_config
  from ..base_tests import SupersetTestCase
  from tests.integration_tests.fixtures.birth_names_dashboard import load_birth_names_dashboard_with_slices, load_birth_names_data
  from tests.integration_tests.fixtures.energy_dashboard import load_energy_table_with_slice, load_energy_table_data
  from tests.integration_tests.fixtures.unicode_dashboard import UNICODE_TBL_NAME, load_unicode_dashboard_with_slice, load_unicode_data
label_desc: Use image node_id 4 for calling the TestRowLevelSecurity obj's underlying member method code with example usage: obj._get_test_dataset() and returns: db