Iterator<Long> iterator = convertedValues.iterator();
    iterator.next();
    iterator.remove();
    assertEquals(ImmutableList.of("123"), mutableList);
  }

  public void testReverse() {
    Converter<Long, String> reverseConverter = STR_TO_LONG.reverse();

    assertThat(reverseConverter.convert(LONG_VAL)).isEqualTo(STR_VAL);
    assertEquals(LONG_VAL, reverseConverter.reverse().convert(STR_VAL));

        assertEquals(
            GeneralRange.range(Ordering.natural(), 3, lowerType, 4, upperType),
            GeneralRange.from(Range.range(3, lowerType, 4, upperType)));
      }
    }
  }

  public void testReverse() {
    assertEquals(GeneralRange.all(ORDERING.reverse()), GeneralRange.all(ORDERING).reverse());
    assertEquals(
        GeneralRange.downTo(ORDERING.reverse(), 3, CLOSED),