@Test
    @LoadGraphWith(MODERN)
    public void g_V_hasIdX1X_hasIdX2X() {
        final Traversal<Vertex, Vertex> traversal = get_g_V_hasIdX1X_hasIdX2X(
                convertToVertexId("marko"), convertToVertexId("vadas")
        );
        printTraversalForm(traversal);
        assertFalse(traversal.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