code: def test_insert_rows_replace_missing_replace_index_arg(self):
      table = "table"
      rows = [
          (
              1,
              "hello",
          ),
          (
              2,
              "world",
          ),
      ]
      fields = ("id", "value")
      with pytest.raises(ValueError) as ctx:
          self.db_hook.insert_rows(table, rows, fields, replace=True)
  
      assert (
          str(ctx.value)
          == "PostgreSQL ON CONFLICT upsert syntax requires an unique index"
      )
  
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 9 for calling the TestPostgresHook obj's underlying member method code with example usage: obj.test_insert_rows_replace_missing_replace_index_arg() without return types