<?php

/**
 * @file
 * Contains main module functions.
 */

declare(strict_types=1);

use Drupal\Component\Utility\Html;

/**
 * Implements hook_preprocess_HOOK().
 */
function navigation_test_preprocess_block__navigation(&$variables): void {
  // Add some additional classes so we can target the correct contextual link
  // in tests.
  $variables['attributes']['class'][] = Html::cleanCssIdentifier('block-' . $variables['elements']['#plugin_id']);
}