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
   }
 }