@Test
    @LoadGraphWith(MODERN)
    public void g_V_hasLabelXpersonX_chooseXageX__optionX27L__constantXyoungXX_optionXnone__constantXoldXX_groupCount() {
        final Traversal<Vertex, Map<String, Long>> traversal = get_g_V_hasLabelXpersonX_chooseXageX__optionX27L__constantXyoungXX_optionXnone__constantXoldXX_groupCount();
        printTraversalForm(traversal);
        final Map<String, Long> expected = new HashMap<>(2);
        expected.put("young", 1L);
        expected.put("old", 3L);
        assertTrue(traversal.hasNext());
        checkMap(expected, traversal.next());
        assertFalse(traversal.hasNext());
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
@author Joshua Shinavier (http://fortytwo.net)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/branch/ChooseTest.java