@Override
    public RouteContext route(final RouteContext routeContext, final BroadcastRule broadcastRule) {
        return routeContext;
    }
@Test
    void assertRoute() {
        BroadcastIgnoreRoutingEngine engine = new BroadcastIgnoreRoutingEngine();
        RouteContext routeContext = engine.route(new RouteContext(), mock(BroadcastRule.class));
        assertTrue(routeContext.getRouteUnits().isEmpty());
    }