public static Result label(long durationInMillis) {
    double nbSeconds = durationInMillis / 1000.0;
    double nbMinutes = nbSeconds / 60;
    double nbHours = nbMinutes / 60;
    double nbDays = nbHours / 24;
    double nbYears = nbDays / 365;
    return getMessage(nbSeconds, nbMinutes, nbHours, nbDays, nbYears);
  }
@Test
  public void year_ago() {
    DurationLabel.Result result = DurationLabel.label(now() - ago(14 * MONTH));
    assertThat(result.key()).isEqualTo("duration.year");
    assertThat(result.value()).isNull();
  }