@Test
public void testAddQueue(TestContext context) {

    Async async = context.async();
    context.assertFalse(jedis.exists(QUEUE_TIMERS));
    storage.addQueue("queue_1", 10).setHandler(event -> {
        context.assertTrue(event.succeeded());
        context.assertTrue(event.result());
        context.assertTrue(jedis.exists(QUEUE_TIMERS));
        Set<Tuple> expectedTuples = new HashSet<>();
        expectedTuples.add(new Tuple("queue_1", 10.0));
        assertQueuesTimersSetContent(1, expectedTuples);
        async.complete();
    });
}