@Test
    @LoadGraphWith(MODERN)
    public void g_V_groupXmX_profile() {
        final Traversal<Vertex, TraversalMetrics> traversal = get_g_V_groupXmX_profile();
        printTraversalForm(traversal);
        traversal.next();
        assertFalse(traversal.hasNext());
    }
ProfileStrategy callback test. Goal: ensure that a step that implements Profileable gets a callback to setMetrics
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/ProfileTest.java