public void testToPeriod_PeriodType2() {
    DateTime dt1 = new DateTime(2004, 6, 9, 7, 8, 9, 10);
    DateTime dt2 = new DateTime(2005, 8, 13, 12, 14, 16, 18);
    MutableInterval base = new MutableInterval(dt1, dt2);

    Period test = base.toPeriod(PeriodType.yearWeekDayTime());
    Period expected = new Period(dt1, dt2, PeriodType.yearWeekDayTime());
    assertEquals(expected, test);
  }
  // -----------------------------------------------------------------------
  public void testToPeriod_PeriodType1() {
    DateTime dt1 = new DateTime(2004, 6, 9, 7, 8, 9, 10, COPTIC_PARIS);
    DateTime dt2 = new DateTime(2005, 8, 13, 12, 14, 16, 18, COPTIC_PARIS);
    MutableInterval base = new MutableInterval(dt1, dt2);

    Period test = base.toPeriod(null);
    Period expected = new Period(dt1, dt2, PeriodType.standard());
    assertEquals(expected, test);
  }