@Test
    public void testGetOnePersonAsJson() {
        System.out.println("getOnePersonsAsJSON");
        Person p1 = new Person("John", "McLaren", "myMail@hotmail.com", "57895879", new Student("Third"));
        String p1AsJson = trans.toJson(p1, Person.class);
        instance.addPersonFromGson(p1AsJson);
        Person fetchedPerson = trans.fromJson(instance.getOnePersonAsJson(100000), Person.class);

        if (fetchedPerson.getId() == 100000 && p1.getFirstName().equals(fetchedPerson.getFirstName())
                && p1.getPhone().equals(fetchedPerson.getPhone())) {
            assertTrue(true);
        } else {
            assertTrue(false);
        }

    }