Ugly integration test - what can I do better?

//TODO: A lot of setup noise here. Will we do similar tests again?!
var threadId = -2;
var threadIdFromTest = -1;
IBus bus = null;

var resetEvent = new ManualResetEvent(false);

var uiThread = new Thread(
    () =>
        {
            SynchronizationContext.SetSynchronizationContext(
                new DispatcherSynchronizationContext(Dispatcher.CurrentDispatcher));
            var frame = new DispatcherFrame();
            threadId = Thread.CurrentThread.ManagedThreadId;
            bus = BusSetup.StartWith<RichClientFrontend>().Construct();
            bus.Subscribe<MessageB>(
                msg =>
                    {
                        threadIdFromTest = Thread.CurrentThread.ManagedThreadId;
                        frame.Continue = false;
                    },
                c => c.DispatchOnUiThread());
            resetEvent.Set();
            Dispatcher.PushFrame(frame);
        });
uiThread.Start();
resetEvent.WaitOne();
bus.Publish(new MessageB());
uiThread.Join();
threadIdFromTest.ShouldBeEqualTo(threadId);