code: def test_database_integration(self):
      from mindsdb.utilities.exception import (
          EntityExistsError,
          EntityNotExistsError,
      )
  
      sql = """
              CREATE DATABASE test_database
              WITH engine = 'mindsdb'
          """
      self.execute(sql)
  
      # create the same database without if not exists throws an error
      with pytest.raises(EntityExistsError):
          self.execute(sql)
  
      # create the same database with if not exists doesn't throw an error
      self.execute(
          """
              CREATE DATABASE IF NOT EXISTS test_database
              WITH engine = 'mindsdb'
          """
      )
  
      # create a database with if not exists should indeed create a new database
      self.execute(
          """
              CREATE DATABASE IF NOT EXISTS test_database2
              WITH engine = 'mindsdb'
          """
      )
  
      # check that the database was indeed created
      ret = self.execute(
          """
              SHOW DATABASES
              WHERE name = 'test_database2'
          """
      )
      assert len(ret.data) == 1
  
      # drop the database
      self.execute("DROP DATABASE test_database2")
  
      # check that the database was indeed dropped
      ret = self.execute(
          """
              SHOW DATABASES
              WHERE name = 'test_database2'
          """
      )
      assert len(ret.data) == 0
  
      # drop again without if exists should throw an error
      with pytest.raises(EntityNotExistsError):
          self.execute("DROP DATABASE test_database2")
  
      # drop again with if exists should not throw an error
      self.execute("DROP DATABASE IF EXISTS test_database2")
  
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 5 for calling the TestIfExistsIfNotExists obj's underlying member method code with example usage: obj.test_database_integration() without return types