    1   package org.apache.commons.net.ntp;
    2
    3   /* ====================================================================
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    5    * The Apache Software License, Version 1.1
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    57
    58  import java.util.Date;
    59  import java.util.Calendar;
    60  import junit.framework.TestCase;
    61  import org.apache.commons.net.ntp.TimeStamp;
    62
    63  /***
    64   * Test class that validates assertions for the basic TimeStamp operations and comparisons.
    65   *
    66   * @author Jason Mathews, MITRE Corp
    67   */
    68  public class TimeStampTest extends TestCase {
    69
    70      private static final String TIME1 = "c1a9ae1c.cf6ac48d";  // Tue, Dec 17 2002 14:07:24.810 UTC
    71      private static final String TIME2 = "c1a9ae1c.cf6ac48f";  // Tue, Dec 17 2002 14:07:24.810 UTC
    72      private static final String TIME3 = "c1a9ae1d.cf6ac48e";  // Tue, Dec 17 2002 14:07:25.810 UTC
    73
    74      /****
    75       * main for running the test.
    76       ***/
    77      public static void main(String args[])
    78      {
    79          junit.textui.TestRunner.run(TimeStampTest.class);
    80      }
    81
    82      public void testCompare() {
    83
    84          TimeStamp ts1 = new TimeStamp(TIME1);	// Tue, Dec 17 2002 14:07:24.810 UTC
    85          TimeStamp ts2 = new TimeStamp(TIME1);
    86          TimeStamp ts3 = new TimeStamp(TIME2); 	// Tue, Dec 17 2002 14:07:24.810 UTC
    87          TimeStamp ts4 = new TimeStamp(TIME3); 	// Tue, Dec 17 2002 14:07:25.810 UTC
    88
    89          // do assertion tests on TimeStamp class
    90          assertEquals("equals(1,2)", ts1, ts2);
    91          assertTrue("compareTo(1,2)", ts1.compareTo(ts2) == 0);
    92          assertEquals("ntpValue(1,2)", ts1.ntpValue(), ts2.ntpValue());
    93          assertEquals("hashCode(1,2)", ts1.hashCode(), ts2.hashCode());
    94          assertEquals("ts1==ts1", ts1, ts1);
    95
    96  	// timestamps in ts1 (TIME1) and ts3 (TIME2) are only off by the smallest
    97  	// fraction of a second (~200 picoseconds) so the times are not equal but
    98  	// when converted to Java dates (in milliseconds) they will be equal.
    99          assertTrue("ts1 != ts3", !ts1.equals(ts3));
    100         assertTrue("compareTo(1,3)", ts1.compareTo(ts3) == -1);
    101         assertEquals("seconds", ts1.getSeconds(), ts3.getSeconds());
    102         assertTrue("fraction", ts1.getFraction() != ts3.getFraction());
    103         assertTrue("ntpValue(1,3)", ts1.ntpValue() != ts3.ntpValue());
    104         assertTrue("hashCode(1,3)", ts1.hashCode() != ts3.hashCode());
    105         long time1 = ts1.getTime();
    106         long time3 = ts3.getTime();
    107         assertEquals("equals(time1,3)", time1, time3); // ntpTime1 != ntpTime3 but JavaTime(t1) == JavaTime(t3)...
    108
    109         assertTrue("ts3 != ts4", !ts3.equals(ts4));
    110         assertTrue("time3 != ts4.time", time3 != ts4.getTime());
    111     }
    112
    113     public void testUTCString() {
    114         TimeStamp ts1 = new TimeStamp(TIME1);	// Tue, Dec 17 2002 14:07:24.810 UTC
    115 	String actual = ts1.toUTCString();
    116 	assertEquals("Tue, Dec 17 2002 14:07:24.810 UTC", actual);
    117     }
    118
    119     public void testDateConversion() {
    120 	// convert current date to NtpTimeStamp then compare Java date
    121 	// computed from NTP timestamp with original Java date.
    122 	Calendar refCal = Calendar.getInstance(java.util.TimeZone.getTimeZone("UTC"));
    123 	Date refDate = refCal.getTime();
    124 	TimeStamp ts = new TimeStamp(refDate);
    125 	assertEquals("refDate.getTime()", refDate.getTime(), ts.getTime());
    126 	Date tsDate = ts.getDate();
    127 	assertEquals(refDate, tsDate);
    128     }
    129
    130 }