@Test
    @LoadGraphWith(MODERN)
    public void g_VXv1X_hasXage_gt_30X() {
        final Traversal<Vertex, Vertex> traversalMarko = get_g_VXv1X_hasXage_gt_30X(convertToVertex(graph,"marko"));
        printTraversalForm(traversalMarko);
        assertFalse(traversalMarko.hasNext());
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/filter/HasTest.java