code: public void testSimpleDuration() throws Exception {
    Clock testingClock=new DefaultClockImpl();
    CycleBusinessCalendar businessCalendar=new CycleBusinessCalendar(testingClock);
    SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy MM dd - HH:mm");
    Date now=simpleDateFormat.parse("2010 06 11 - 17:23");
    testingClock.setCurrentTime(now);
    Date duedate=businessCalendar.resolveDuedate("R/P2DT5H70M");
    Date expectedDuedate=simpleDateFormat.parse("2010 06 13 - 23:33");
    assertEquals(expectedDuedate,duedate);
  }
  