@Test
public void testGetAllCircuitsNoCircuits(TestContext context){

    Async async = context.async();
    context.assertEquals(0L, jedis.scard(STORAGE_ALL_CIRCUITS));
    storage.getAllCircuits().setHandler(event -> {
        context.assertTrue(event.succeeded());
        context.assertNotNull(event.result());
        JsonObject result = event.result();
        context.assertEquals(new JsonObject(), result);
        async.complete();
    });
}