code: def test_bulk_load(self, tmp_path):
      hook = PostgresHook()
      input_data = ["foo", "bar", "baz"]
  
      with hook.get_conn() as conn, conn.cursor() as cur:
          cur.execute(f"CREATE TABLE {self.table} (c VARCHAR)")
          conn.commit()
  
          path = tmp_path / "testfile"
          path.write_text("\n".join(input_data))
          hook.bulk_load(self.table, os.fspath(path))
  
          cur.execute(f"SELECT * FROM {self.table}")
          results = [row[0] for row in cur.fetchall()]
  
      assert sorted(input_data) == sorted(results)
  
imports: from __future__ import annotations
  import json
  import os
  from unittest import mock
  import psycopg2.extras
  import pytest
  from airflow.models import Connection
  from airflow.providers.postgres.hooks.postgres import PostgresHook
  from airflow.utils.types import NOTSET
label_desc: Use image node_id 4 for calling the TestPostgresHook obj's underlying member method code with example usage: obj.test_bulk_load(tmp_path) without return types