code: def test_integration_select(self, mock_handler):
      data = [[1, "x"], [1, "y"]]
      df = pd.DataFrame(data, columns=["a", "b"])
      self.set_handler(mock_handler, name="pg", tables={"tasks": df})
  
      ret = self.execute("select * from pg.tasks")
      assert ret.data == data
  
      # check sql in query method
      assert (
          mock_handler().query.call_args[0][0].to_string()
          == "SELECT * FROM tasks"
      )
  
imports: from unittest.mock import patch
  import datetime
  import tempfile
  import pytest
  import pandas
  import numpy
  from mindsdb_sql.render.sqlalchemy_render import SqlalchemyRender
  from mindsdb.api.executor.utilities.sql import query_df
  from mindsdb.api.mysql.mysql_proxy.utilities.lightwood_dtype import dtype
  from .executor_test_base import BaseExecutorMockPredictor
label_desc: Use image node_id 3 for calling the Test obj's underlying member method code with example usage: obj.test_integration_select(mock_handler) without return types