entity_embed-8.x-1.x-dev/tests/modules/entity_embed_ckeditor_test/entity_embed_ckeditor_test.module

<?php

/**
 * @file
 * Implements hooks for the CKEditor test module.
 */

declare(strict_types=1);

/**
 * Implements hook_editor_info_alter().
 */
function entity_embed_ckeditor_test_editor_info_alter(array &$editors) {
  // Drupal 9 used to have an editor called ckeditor. Copy the Unicorn editor to
  // it to be able to test upgrading to CKEditor 5.
  $editors['ckeditor'] = $editors['unicorn'];
}