/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.net.ntp;
import java.util.Date;
import java.util.Calendar;
import junit.framework.TestCase;
import org.apache.commons.net.ntp.TimeStamp;
/**
* Test class that validates assertions for the basic TimeStamp operations and comparisons.
*
* @author Jason Mathews, MITRE Corp
*/
public class TimeStampTest extends TestCase {
private static final String TIME1 = "c1a9ae1c.cf6ac48d"; // Tue, Dec 17 2002 14:07:24.810 UTC
private static final String TIME2 = "c1a9ae1c.cf6ac48f"; // Tue, Dec 17 2002 14:07:24.810 UTC
private static final String TIME3 = "c1a9ae1d.cf6ac48e"; // Tue, Dec 17 2002 14:07:25.810 UTC
public void testCompare() {
TimeStamp ts1 = new TimeStamp(TIME1); // Tue, Dec 17 2002 14:07:24.810 UTC
TimeStamp ts2 = new TimeStamp(TIME1);
TimeStamp ts3 = new TimeStamp(TIME2); // Tue, Dec 17 2002 14:07:24.810 UTC
TimeStamp ts4 = new TimeStamp(TIME3); // Tue, Dec 17 2002 14:07:25.810 UTC
// do assertion tests on TimeStamp class
assertEquals("equals(1,2)", ts1, ts2);
assertEquals("compareTo(1,2)", 0, ts1.compareTo(ts2));
assertEquals("ntpValue(1,2)", ts1.ntpValue(), ts2.ntpValue());
assertEquals("hashCode(1,2)", ts1.hashCode(), ts2.hashCode());
assertEquals("ts1==ts1", ts1, ts1);
// timestamps in ts1 (TIME1) and ts3 (TIME2) are only off by the smallest
// fraction of a second (~200 picoseconds) so the times are not equal but
// when converted to Java dates (in milliseconds) they will be equal.
assertTrue("ts1 != ts3", !ts1.equals(ts3));
assertEquals("compareTo(1,3)", -1, ts1.compareTo(ts3));
assertEquals("seconds", ts1.getSeconds(), ts3.getSeconds());
assertTrue("fraction", ts1.getFraction() != ts3.getFraction());
assertTrue("ntpValue(1,3)", ts1.ntpValue() != ts3.ntpValue());
assertTrue("hashCode(1,3)", ts1.hashCode() != ts3.hashCode());
long time1 = ts1.getTime();
long time3 = ts3.getTime();
assertEquals("equals(time1,3)", time1, time3); // ntpTime1 != ntpTime3 but JavaTime(t1) == JavaTime(t3)...
assertTrue("ts3 != ts4", !ts3.equals(ts4));
assertTrue("time3 != ts4.time", time3 != ts4.getTime());
}
public void testUTCString() {
TimeStamp ts1 = new TimeStamp(TIME1); // Tue, Dec 17 2002 14:07:24.810 UTC
String actual = ts1.toUTCString();
assertEquals("Tue, Dec 17 2002 14:07:24.810 UTC", actual);
}
public void testDateConversion() {
// convert current date to NtpTimeStamp then compare Java date
// computed from NTP timestamp with original Java date.
Calendar refCal = Calendar.getInstance(java.util.TimeZone.getTimeZone("UTC"));
Date refDate = refCal.getTime();
TimeStamp ts = new TimeStamp(refDate);
assertEquals("refDate.getTime()", refDate.getTime(), ts.getTime());
Date tsDate = ts.getDate();
assertEquals(refDate, tsDate);
}
}