@Test
    public void g_injectXname_marko_age_nullX_selectXname_ageX() {
        final Traversal<Map<String, Object>, Map<String, Object>> traversal = get_g_injectXname_marko_age_nullX_selectXname_ageX();
        printTraversalForm(traversal);
        checkResults(makeMapList(2, "name", "marko", "age", null), traversal);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/sideEffect/InjectTest.java