@Test
public void testPrettyPrint() {

    final List<Dept> list = Lists.list(
            new Dept("Engineering", new Employee("Rick", "Hightower", 1,
                    new Phone("320", "555", "1212"), Fruit.ORANGES, Fruit.APPLES, Fruit.STRAWBERRIES)),
            new Dept("HR", new Employee("Diana", "Hightower", 2, new Phone("320", "555", "1212")))
    );
    final String json = Str.toPrettyJson(list);
    puts(json);
}