@Test
public void ensureDefaultLocaleFollowsISOWeekFields() {

    WeekFields localeWeekFields = WeekFields.of(new TimeStampDissector().getLocale());
    WeekFields isoWeekFields    = WeekFields.ISO;
    assertEquals(localeWeekFields.getFirstDayOfWeek(), isoWeekFields.getFirstDayOfWeek());
    assertEquals(localeWeekFields.getMinimalDaysInFirstWeek(), isoWeekFields.getMinimalDaysInFirstWeek());
}