public static void main(String[] args) {
        String relDir = args.length == 1 ? args[0] : "";
        GraphHopper hopper = createGraphHopperInstance(relDir + "core/files/andorra.osm.pbf");

        without_heading(hopper);
        with_heading_start(hopper);
        with_heading_start_stop(hopper);
        with_heading_stop(hopper);
        with_heading_start_stop_lower_penalty(hopper);
    }
@Test
    public void main() {
        Helper.removeDir(new File("target/heading-graph-cache"));
        HeadingExample.main(new String[]{"../"});
    }