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// Copyright (C) 2007 Red Hat, Inc.
// Written by Gary Benson <gbenson@redhat.com>
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
// Tags: JDK1.1
package gnu.testlet.java.util.GregorianCalendar;
import java.util.Calendar;
import java.util.GregorianCalendar;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
public class dayOfWeekInMonth implements Testlet
{
public void test(TestHarness harness)
{
GregorianCalendar c = new GregorianCalendar();
GregorianCalendar d = new GregorianCalendar();
GregorianCalendar e = new GregorianCalendar();
// 31 day months whose first days are the specified weekdays
int testMonths[][] =
{{Calendar.JANUARY, 2007, Calendar.MONDAY},
{Calendar.MAY, 2007, Calendar.TUESDAY},
{Calendar.AUGUST, 2007, Calendar.WEDNESDAY},
{Calendar.MARCH, 2007, Calendar.THURSDAY},
{Calendar.DECEMBER, 2006, Calendar.FRIDAY},
{Calendar.DECEMBER, 2007, Calendar.SATURDAY},
{Calendar.JULY, 2007, Calendar.SUNDAY}};
for (int minimalDaysInFirstWeek = 1;
minimalDaysInFirstWeek <= 7; minimalDaysInFirstWeek++) {
c.setMinimalDaysInFirstWeek(minimalDaysInFirstWeek);
d.setMinimalDaysInFirstWeek(minimalDaysInFirstWeek);
e.setMinimalDaysInFirstWeek(minimalDaysInFirstWeek);
for (int firstDayOfWeek = Calendar.SUNDAY;
firstDayOfWeek <= Calendar.SATURDAY; firstDayOfWeek++) {
c.setFirstDayOfWeek(firstDayOfWeek);
d.setFirstDayOfWeek(firstDayOfWeek);
e.setFirstDayOfWeek(firstDayOfWeek);
for (int i = 0; i < testMonths.length; i++) {
int month = testMonths[i][0];
int year = testMonths[i][1];
int first = testMonths[i][2];
for (int day = 1; day <= 31; day++) {
// First we set YEAR + MONTH + DAY_OF_MONTH and check we
// have DAY_OF_WEEK_IN_MONTH and WEEK_OF_MONTH correct.
c.set(year, month, day);
int dayOfWeekInMonth = (day + 6) / 7;
harness.check(
c.get(Calendar.DAY_OF_WEEK_IN_MONTH) == dayOfWeekInMonth);
int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
if (day == 1)
harness.check(dayOfWeek == first); // sanity
// which day of the week are we (0..6) relative to firstDayOfWeek
int relativeDayOfWeek = (7 + dayOfWeek - firstDayOfWeek) % 7;
// which day of the week is the first of this month?
// nb 35 is the smallest multiple of 7 that ensures that
// the left hand side of the modulo operator is positive.
int relativeDayOfFirst = (relativeDayOfWeek - day + 1 + 35) % 7;
// which week of the month is the first of this month in?
int weekOfFirst =
((7 - relativeDayOfFirst) >= minimalDaysInFirstWeek) ? 1 : 0;
// which week of the month is this day in?
int weekOfMonth =
(day + relativeDayOfFirst - 1) / 7 + weekOfFirst;
harness.check(c.get(Calendar.WEEK_OF_MONTH) == weekOfMonth);
// Then we set YEAR + MONTH + DAY_OF_WEEK_IN_MONTH +
// DAY_OF_WEEK and check we have DAY_OF_MONTH correct.
d.clear();
d.set(Calendar.YEAR, year);
d.set(Calendar.MONTH, month);
d.set(Calendar.DAY_OF_WEEK_IN_MONTH, dayOfWeekInMonth);
d.set(Calendar.DAY_OF_WEEK, dayOfWeek);
harness.check(d.get(Calendar.DAY_OF_MONTH) == day);
// Finally we set YEAR + MONTH + WEEK_OF_MONTH + DAY_OF_WEEK
// and check we have DAY_OF_MONTH correct.
e.clear();
e.set(Calendar.YEAR, year);
e.set(Calendar.MONTH, month);
e.set(Calendar.WEEK_OF_MONTH, weekOfMonth);
e.set(Calendar.DAY_OF_WEEK, dayOfWeek);
harness.check(e.get(Calendar.DAY_OF_MONTH) == day);
}
}
}
}
}
}
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