code: def test_should_drop_database(self):
      # Create database.
      database_name = "test_data_source"
      params = {
          "database": "evadb.db",
      }
      query = f"""CREATE DATABASE {database_name}
                      WITH ENGINE = "sqlite",
                      PARAMETERS = {params};"""
      execute_query_fetch_all(self.evadb, query)
      self.assertIsNotNone(
          self.evadb.catalog().get_database_catalog_entry(database_name)
      )
  
      # DROP DATABASE
      execute_query_fetch_all(
          self.evadb, f"DROP DATABASE {database_name}"
      )
      self.assertIsNone(
          self.evadb.catalog().get_database_catalog_entry(database_name)
      )
  
      # DROP should pass with warning
      result = execute_query_fetch_all(
          self.evadb, f"DROP DATABASE IF EXISTS {database_name}"
      )
      self.assertTrue("does not exist" in result.frames.to_string())
  
      # DROP should throw error
      with self.assertRaises(ExecutorError):
          execute_query_fetch_all(
              self.evadb,
              f"DROP DATABASE {database_name}",
              do_not_print_exceptions=True,
          )
  
      # We should be able to add the database again
      execute_query_fetch_all(self.evadb, query)
  
      # clean up
      result = execute_query_fetch_all(
          self.evadb, f"DROP DATABASE IF EXISTS {database_name}"
      )
  
imports: import unittest
  from pathlib import Path
  from test.util import create_sample_video, file_remove, get_evadb_for_testing
  import pandas
  import pytest
  from evadb.catalog.catalog_utils import get_video_table_column_definitions
  from evadb.executor.executor_utils import ExecutorError
  from evadb.models.storage.batch import Batch
  from evadb.server.command_handler import execute_query_fetch_all
  from evadb.storage.storage_engine import StorageEngine
label_desc: Use image node_id 9 for calling the DropObjectExecutorTest obj's underlying member method code with example usage: obj.test_should_drop_database() without return types