    @Test
    @SuppressWarnings("unchecked")
    public void testExpectReply() {

        String topic = UUID.randomUUID().toString();

        List<Integer> integers = new ArrayList<>();
        AtomicReference<io.vertx.mutiny.core.eventbus.Message<Integer>> last = new AtomicReference<>();
        vertx.eventBus().<Integer> consumer(topic, m -> {
            last.set(m);
            if (m.body() < 8) {
                integers.add(m.body());
                m.replyAndForget("foo");
            }
        });

        Map<String, Object> config = new HashMap<>();
        config.put("address", topic);
        config.put("expect-reply", true);
        EventBusSink sink = new EventBusSink(vertx,
                new VertxEventBusConnectorOutgoingConfiguration(new MapBasedConfig(config)));

        SubscriberBuilder<? extends Message<?>, Void> subscriber = sink.sink();
        Multi.createFrom().range(0, 10)
                .map(Message::of)
                .subscribe((Subscriber<Message<?>>) subscriber.build());

        await().until(() -> integers.size() == 8 && last.get().body() == 8);
        last.get().replyAndForget("bar");
        await().until(() -> last.get().body() == 9);
        assertThat(last.get().body()).isEqualTo(9);
        last.get().replyAndForget("baz");
    }