001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package ch.qos.logback.access.filter;
015
016import static org.junit.Assert.assertEquals;
017
018import org.junit.Test;
019
020import ch.qos.logback.core.util.TimeUtil;
021
022public class StatsByDayTest {
023
024    @Test
025    public void testBasic() {
026        // Tue Nov 21 18:05:36 CET 2006
027        long now = 1164128736369L;
028        StatsByDay statsByDay = new StatsByDay(now);
029
030        int total = 0;
031        // test fresh start
032        statsByDay.update(now, 0);
033        assertEquals(0, statsByDay.getLastCount());
034        assertEquals(0, statsByDay.getAverage(), 0.01);
035
036        total++;
037        statsByDay.update(now, total);
038        assertEquals(0, statsByDay.getLastCount());
039        assertEquals(0.0, statsByDay.getAverage(), 0.01);
040
041        long nextDay0 = TimeUtil.computeStartOfNextDay(now);
042        nextDay0 += 99;
043
044        // there should be one event the next day, avg should also be 1
045        statsByDay.update(nextDay0, total);
046        assertEquals(1.0, statsByDay.getLastCount(), 0.01);
047        assertEquals(1.0, statsByDay.getAverage(), 0.01);
048
049        total += 2;
050
051        statsByDay.update(nextDay0, total);
052        assertEquals(1, statsByDay.getLastCount());
053        assertEquals(1.0, statsByDay.getAverage(), 0.01);
054
055        long nextDay1 = TimeUtil.computeStartOfNextDay(nextDay0) + 6747;
056        statsByDay.update(nextDay1, total);
057        assertEquals(2, statsByDay.getLastCount());
058        assertEquals(1.5, statsByDay.getAverage(), 0.01);
059
060        nextDay1 += 4444;
061        total += 4;
062
063        statsByDay.update(nextDay1, total);
064        // values should remain unchanged
065        assertEquals(2, statsByDay.getLastCount());
066        assertEquals(1.5, statsByDay.getAverage(), 0.01);
067
068        long nextDay2 = TimeUtil.computeStartOfNextDay(nextDay1) + 11177;
069
070        statsByDay.update(nextDay2, total);
071        // values should remain unchanged
072        assertEquals(4, statsByDay.getLastCount());
073        assertEquals(7.0 / 3, statsByDay.getAverage(), 0.01);
074    }
075
076}