code: def test_drop_table(self, postgres_handler_mock):
      df = pd.DataFrame(
          {
              "id": [
                  "4b166dbe-d99d-5091-abdd-95b83330ed3a",
                  "98123fde-012f-5ff3-8b50-881449dac91a",
              ],
              "content": ["this is a test", "this is a test"],
              "metadata": [{"test": "test"}, {"test": "test"}],
              "embeddings": [[1.0, 2.0, 3.0], [1.0, 2.0, 3.0]],
          }
      )
      self.set_handler(
          postgres_handler_mock, "weaviate", tables={"test_table3": df}
      )
  
      # create a table
      sql = """
              CREATE TABLE weaviate_test.test_table3 (
                  SELECT * FROM weaviate.df
              )
          """
      with pytest.raises(Exception):
          self.run_sql(sql)
  
      # drop a table
      sql = """
              DROP TABLE weaviate_test.test_table3;
          """
      self.run_sql(sql)
  
      # drop a non existent table will raise an error
      sql = """
              DROP TABLE weaviate_test.test_table4;
          """
      with pytest.raises(Exception):
          self.run_sql(sql)
  
imports: import re
  import importlib
  from unittest.mock import patch
  import tempfile
  import psutil
  import pandas
  import pytest
  from mindsdb_sql import parse_sql
  from ..unit.executor_test_base import BaseExecutorTest
label_desc: Use image node_id 6 for calling the TestWeaviateHandler obj's underlying member method code with example usage: obj.test_drop_table(postgres_handler_mock) without return types