public void testOffset() {
Span span = new Span(_now, Calendar.SECOND, 60);
Span offsetSpan;
offsetSpan = new RepeaterMonth().getOffset(span, 1, Pointer.PointerType.FUTURE);
assertEquals(Time.construct(2006, 9, 16, 14), offsetSpan.getBeginCalendar());
assertEquals(Time.construct(2006, 9, 16, 14, 1), offsetSpan.getEndCalendar());
offsetSpan = new RepeaterMonth().getOffset(span, 1, Pointer.PointerType.PAST);
assertEquals(Time.construct(2006, 7, 16, 14), offsetSpan.getBeginCalendar());
assertEquals(Time.construct(2006, 7, 16, 14, 1), offsetSpan.getEndCalendar());
}