code: def test_find_unexpected_errors(self, mock_webdriver_wait):
      webdriver = MagicMock()
      alert_div = MagicMock()
  
      webdriver.find_elements.return_value = [alert_div]
      alert_div.find_elements.return_value = MagicMock()
  
      unexpected_errors = WebDriverSelenium.find_unexpected_errors(
          driver=webdriver
      )
      assert len(unexpected_errors) == 1
  
      # attempt to find alerts
      assert "alert" in webdriver.find_elements.call_args_list[0][0][1]
      # attempt to click on "See more" buttons
      assert "button" in alert_div.find_element.call_args_list[0][0][1]
      # Wait for error modal to show up and to hide
      assert 2 == len(mock_webdriver_wait.call_args_list)
      # replace the text in alert div, eg, "unexpected errors"
      assert (
          alert_div == webdriver.execute_script.call_args_list[0][0][1]
      )
  
imports: import json
  import urllib.request
  from io import BytesIO
  from unittest import skipUnless
  from unittest.mock import ANY, call, MagicMock, patch
  import pytest
  from flask_testing import LiveServerTestCase
  from sqlalchemy.sql import func
  from superset import db, is_feature_enabled, security_manager
  from superset.extensions import machine_auth_provider_factory
  from superset.models.dashboard import Dashboard
  from superset.models.slice import Slice
  from superset.tasks.types import ExecutorType
  from superset.utils.screenshots import ChartScreenshot, DashboardScreenshot
  from superset.utils.urls import get_url_path
  from superset.utils.webdriver import WebDriverSelenium
  from tests.integration_tests.conftest import with_feature_flags
  from tests.integration_tests.fixtures.birth_names_dashboard import load_birth_names_dashboard_with_slices, load_birth_names_data
  from tests.integration_tests.test_app import app
  from .base_tests import SupersetTestCase
label_desc: Use image node_id 4 for calling the TestWebDriverScreenshotErrorDetector obj's underlying member method code with example usage: obj.test_find_unexpected_errors(mock_webdriver_wait) without return types