@Test
    @LoadGraphWith(MODERN)
    public void g_VX1X_repeatXboth_simplePathX_untilXhasIdX6XX_path_byXnameX_unfold() {
        final Traversal<Vertex, String> traversal = get_g_VX1X_repeatXboth_simplePathX_untilXhasIdX6XX_path_byXnameX_unfold(
                convertToVertexId("marko"), convertToVertexId("peter"));
        printTraversalForm(traversal);
        checkResults(Arrays.asList("marko", "lop", "peter", "marko", "josh", "lop", "peter"), traversal);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/UnfoldTest.java