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// Test Calendar.roll().
// Copyright (c) 2001 Red Hat
// Written by Tom Tromey <tromey@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.Calendar;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
import java.text.*;
import java.util.*;
public class roll implements Testlet
{
public void test (TestHarness harness)
{
java.util.TimeZone tz = java.util.TimeZone.getTimeZone ("GMT");
DateFormat cdf = new SimpleDateFormat ("EEE, d MMM yyyy HH:mm:ss zzz",
Locale.US);
cdf.setTimeZone (tz);
// We use the US locale since we need a fixed one, and this one I
// understand.
Calendar k = Calendar.getInstance (tz, Locale.US);
Date epoch = new Date (0);
k.setTime (epoch);
// Just double-check to make sure the tests themselves are ok.
harness.check (cdf.format (epoch), "Thu, 1 Jan 1970 00:00:00 GMT");
harness.check (k.getTime (), epoch);
// No-op.
k.roll (Calendar.YEAR, 0);
harness.check (k.getTime (), epoch, "no-op add()");
k.roll (Calendar.YEAR, 10);
harness.check (k.get (Calendar.YEAR), 1980, "roll() year");
harness.check (cdf.format (k.getTime ()),
"Tue, 1 Jan 1980 00:00:00 GMT");
k.roll (Calendar.MONTH, -3);
harness.check (k.get (Calendar.MONTH), Calendar.OCTOBER,
"roll() month");
harness.check (k.get (Calendar.YEAR), 1980);
}
}
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