@Test
    @LoadGraphWith(MODERN)
    public void g_withSackXmap__map_cloneX_V_out_out_sackXmap_a_nameX_sack() {
        final Traversal<Vertex, Map> traversal = get_g_withSackXmap__map_cloneX_V_out_out_sackXmap_a_nameX_sack();
        printTraversalForm(traversal);
        int counter = 0;
        while (traversal.hasNext()) {
            final Map map = traversal.next();
            assertEquals(1, map.size());
            assertTrue(map.containsKey("a"));
            assertTrue(map.get("a").equals("ripple") || map.get("a").equals("lop"));
            counter++;
        }
        assertEquals(2, counter);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/sideEffect/SackTest.java