public void testFactory_standardMinutesIn_RPeriod() {
        assertEquals(0, Minutes.standardMinutesIn((ReadablePeriod) null).getMinutes());
        assertEquals(0, Minutes.standardMinutesIn(Period.ZERO).getMinutes());
        assertEquals(1, Minutes.standardMinutesIn(new Period(0, 0, 0, 0, 0, 1, 0, 0)).getMinutes());
        assertEquals(123, Minutes.standardMinutesIn(Period.minutes(123)).getMinutes());
        assertEquals(-987, Minutes.standardMinutesIn(Period.minutes(-987)).getMinutes());
        assertEquals(1, Minutes.standardMinutesIn(Period.seconds(119)).getMinutes());
        assertEquals(2, Minutes.standardMinutesIn(Period.seconds(120)).getMinutes());
        assertEquals(2, Minutes.standardMinutesIn(Period.seconds(121)).getMinutes());
        assertEquals(120, Minutes.standardMinutesIn(Period.hours(2)).getMinutes());
        try {
            Minutes.standardMinutesIn(Period.months(1));
            fail();
        } catch (IllegalArgumentException ex) {
            // expeceted
        }
    }