@Test
public void shouldExecuteQueryVertex() {

    List<Person> people = executor.executeGremlin(graph.traversal(), "g.V()");
    assertFalse(people.isEmpty());
    List<String> names = people.stream().map(Person::getName).collect(Collectors.toList());
    assertThat(names, containsInAnyOrder("Bruce Banner", "Natasha Romanoff"));
}