class ConfigTestHooks

class ConfigTestHooks {
    
    /**
     * Implements hook_cache_flush().
     */
    public function cacheFlush() {
        // Set a global value we can check in test code.
        $GLOBALS['hook_cache_flush'] = 'config_test_cache_flush';
    }
    
    /**
     * Implements hook_entity_type_alter().
     */
    public function entityTypeAlter(array &$entity_types) : void {
        
        /** @var \Drupal\Core\Entity\EntityTypeInterface[] $entity_types */
        // The 'translatable' entity key is not supposed to change over time. In this
        // case we can safely do it because we set it once and we do not change it for
        // all the duration of the test session.
        $entity_types['config_test']->set('translatable', \Drupal::service('state')->get('config_test.translatable'));
        // Create a clone of config_test that does not have a status.
        $entity_types['config_test_no_status'] = clone $entity_types['config_test'];
        $config_test_no_status =& $entity_types['config_test_no_status'];
        $config_test_no_status->setLinkTemplate('edit-form', '/admin/structure/config_test/manage/{config_test_no_status}');
        $config_test_no_status->setLinkTemplate('delete-form', '/admin/structure/config_test/manage/{config_test_no_status}/delete');
        $keys = $config_test_no_status->getKeys();
        unset($keys['status']);
        $config_test_no_status->set('id', 'config_test_no_status');
        $config_test_no_status->set('entity_keys', $keys);
        $config_test_no_status->set('config_prefix', 'no_status');
        $config_test_no_status->set('mergedConfigExport', [
            'id' => 'id',
            'label' => 'label',
            'uuid' => 'uuid',
            'langcode' => 'langcode',
        ]);
        if (\Drupal::service('state')->get('config_test.lookup_keys', FALSE)) {
            $entity_types['config_test']->set('lookup_keys', [
                'uuid',
                'style',
            ]);
        }
        if (\Drupal::service('state')->get('config_test.class_override', FALSE)) {
            $entity_types['config_test']->setClass(\Drupal::service('state')->get('config_test.class_override'));
        }
    }
    
    /**
     * Implements hook_entity_query_tag__ENTITY_TYPE__TAG_alter().
     *
     * Entity type is 'config_query_test' and tag is
     * 'config_entity_query_alter_hook_test'.
     *
     * @see Drupal\KernelTests\Core\Entity\ConfigEntityQueryTest::testAlterHook
     */
    public function entityQueryTagConfigQueryTestConfigEntityQueryAlterHookTestAlter(QueryInterface $query) : void {
        $query->condition('id', '7', '<>');
    }

}