@Test
public void testGetQueueRequestInvalidParam(TestContext context){

    Async async = context.async();
    context.assertFalse(jedis.exists(QUEUE_REQUESTS));
    storage.getQueueRequest(null).setHandler(event -> {
        context.assertFalse(event.succeeded());
        context.assertEquals("Queue is not allowed to be empty", event.cause().getMessage());
        async.complete();
    });
}