### Question:
DefaultCalendarDate extends DefaultTemporalPosition implements CalendarDate { public void setCalendarEraName(final InternationalString calendarEraName) { this.calendarEraName = calendarEraName; } DefaultCalendarDate(final TemporalReferenceSystem frame, final IndeterminateValue indeterminatePosition, final InternationalString calendarEraName, final int[] calendarDate); @Override InternationalString getCalendarEraName(); @Override int[] getCalendarDate(); void setCalendarEraName(final InternationalString calendarEraName); void setCalendarDate(final int[] calendarDate); @Override boolean equals(final Object object); @Override int hashCode(); @Override String toString();  }### Answer:
@Test public void testSetCalendarEraName() { InternationalString result = calendarDate1.getCalendarEraName(); ((DefaultCalendarDate) calendarDate1).setCalendarEraName(new SimpleInternationalString("new Era")); assertFalse(calendarDate1.getCalendarEraName().equals(result)); }