class_docstr: Test case of database 
class_docstr_tok: ["Test","case","of","database"]
docstr: target: test create db with default db name "default"
  method: create db with name "default"
  expected: exception
docstr_tok: ["target",":","test","create","db","with","default","db","name","``","default","''","method",":","create","db","with","name","``","default","''","expected",":","exception"]
code: def test_create_default_db(self):
      """
      target: test create db with default db name "default"
      method: create db with name "default"
      expected: exception
      """
      self._connect()
      error = {
          ct.err_code: 1,
          ct.err_msg: "database already exist: default",
      }
      self.database_wrap.create_database(
          ct.default_db,
          check_task=CheckTasks.err_res,
          check_items=error,
      )
  
imports: import pandas
  import pytest
  from base.client_base import TestcaseBase
  from common.common_type import CheckTasks, CaseLabel
  from common import common_func
  from common import common_type
  from utils.util_log import test_log
label_desc: Use image node_id 6 for calling the TestDatabaseParams obj's underlying member method code with example usage: obj.test_create_default_db() without return types