CronQueueTestSuspendQueue.php

<?php

namespace Drupal\cron_queue_test\Plugin\QueueWorker;

use Drupal\Core\Queue\Attribute\QueueWorker;
use Drupal\Core\Queue\QueueWorkerBase;
use Drupal\Core\Queue\SuspendQueueException;
use Drupal\Core\StringTranslation\TranslatableMarkup;

/**
 * A queue worker for testing suspending queue run.
 */
class CronQueueTestSuspendQueue extends QueueWorkerBase {
    
    /**
     * The plugin ID.
     */
    public const PLUGIN_ID = 'cron_queue_test_suspend';
    
    /**
     * {@inheritdoc}
     */
    public function processItem($data) {
        if ($data === 'suspend') {
            throw new SuspendQueueException('The queue is broken.');
        }
        // Do nothing otherwise.
    }

}