Unit testing camel routes containing serviceCall()

I have a camel route that reaches out to a URL and does some processing with the results:

from("direct:doURL")
    .routeId("urlRouteId")
    .to("http://host:port/path")
    .process(e -> {
        //Do Stuff
    });

I can run unit test on that route without making an actual call to the URL by intercepting the call in my unit test like follows:

AdviceWith.adviceWith(context, "urlRouteId", a ->
    a.interceptSendToEndpoint("http://host:port/path").skipSendToOriginalEndpoint().to("mock:test")
);

I’m updating that route to use .serviceCall() instead to look up the actual URL of the service, something like this:

from("direct:doService")                
    .routeId("servcieRouteId")
    .serviceCall("myService/path")
    .process(e -> {
        //Do Stuff
    });

This works great, but I don’t know how to do a similar unit test on this route. Is there some sort of LoadBalancerClient I can use for testing? What is the standard way to unit test routes with service calls? I've been googling around for awhile and haven't had much luck, any ideas?

Thanks