@Test
    public void shouldHandleEmptyArray() {
        testOrderLocalStep(new int[0], new ArrayList<>());
    }
@author Daniel Kuppitz (http://gremlin.guru)
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/OrderLocalStepTest.java