@Test
public void testPlusMonthsOverflow() throws Exception {
try {
testDate.plusMonths(Integer.MAX_VALUE);
fail();
} catch (IllegalCalendarFieldValueException ex) {
assertEquals(ex.getRule(), MinguoChronology.yearOfEraRule());
}
}
// -----------------------------------------------------------------------
// plusMonths()
// -----------------------------------------------------------------------
@Test
public void testPlusMonths() {
assertEquals(
testDate.plusMonths(5), MinguoDate.of(testYear, testMonthOfYear.roll(5), testDayOfMonth));
}