RollingCalendarTest.java
/*
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2026, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v2.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package ch.qos.logback.core.rolling.helper;
import java.time.Instant;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import org.junit.jupiter.api.*;
import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.util.EnvUtil;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class RollingCalendarTest {
String dailyPattern = "yyyy-MM-dd";
@BeforeEach
public void setUp() {
// Due to fist day of week differences, tests may fail
// certain locales, namely GB.
//
// These tests are:
//
// checkCollisionFreeness("yyyy-WW", false);
// checkCollisionFreeness("yyyy-ww", true);
// checkCollisionFreeness("ww", false);
// {
// RollingCalendar rc = new RollingCalendar("yyyy-ww");
// assertEquals(PeriodicityType.TOP_OF_WEEK, rc.getPeriodicityType());
// }
//
}
void set_EN_US_Locale() {
Locale usEn_Locale = Locale.forLanguageTag("en-US");
Locale.setDefault(usEn_Locale);
}
@AfterEach
public void tearDown() {
}
@Test
public void testPeriodicity() {
{
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd_HH_mm_ss");
assertEquals(PeriodicityType.TOP_OF_SECOND, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd_HH_mm");
assertEquals(PeriodicityType.TOP_OF_MINUTE, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd_HH");
assertEquals(PeriodicityType.TOP_OF_HOUR, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd_hh");
assertEquals(PeriodicityType.TOP_OF_HOUR, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd");
assertEquals(PeriodicityType.TOP_OF_DAY, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-MM");
assertEquals(PeriodicityType.TOP_OF_MONTH, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-ww");
assertEquals(PeriodicityType.TOP_OF_WEEK, rc.getPeriodicityType());
}
{
RollingCalendar rc = new RollingCalendar("yyyy-W");
assertEquals(PeriodicityType.TOP_OF_WEEK, rc.getPeriodicityType());
}
}
@Test
public void testVaryingNumberOfHourlyPeriods() {
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd_HH");
long MILLIS_IN_HOUR = 3600 * 1000;
for (int p = 100; p > -100; p--) {
long now = 1223325293589L; // Mon Oct 06 22:34:53 CEST 2008
Instant result = rc.getEndOfNextNthPeriod(Instant.ofEpochMilli(now), p);
long expected = now - (now % (MILLIS_IN_HOUR)) + p * MILLIS_IN_HOUR;
assertEquals(expected, result.toEpochMilli());
}
}
@Test
public void testVaryingNumberOfDailyPeriods() {
RollingCalendar rc = new RollingCalendar("yyyy-MM-dd");
final long MILLIS_IN_DAY = 24 * 3600 * 1000;
for (int p = 20; p > -100; p--) {
long now = 1223325293589L; // Mon Oct 06 22:34:53 CEST 2008
Instant nowInstant = Instant.ofEpochMilli(now);
Instant result = rc.getEndOfNextNthPeriod(nowInstant, p);
long offset = rc.getTimeZone().getRawOffset() + rc.getTimeZone().getDSTSavings();
long origin = now - ((now + offset) % (MILLIS_IN_DAY));
long expected = origin + p * MILLIS_IN_DAY;
assertEquals(expected, result.toEpochMilli(), "p=" + p);
}
}
// Wed Mar 23 23:07:05 CET 2016
final long WED_2016_03_23_T_230705_CET = 1458770825333L;
@Test
public void testBarrierCrossingComputation() {
checkPeriodBarriersCrossed("yyyy-MM-dd'T'HHmmss", WED_2016_03_23_T_230705_CET,
WED_2016_03_23_T_230705_CET + 3 * CoreConstants.MILLIS_IN_ONE_SECOND, 3);
checkPeriodBarriersCrossed("yyyy-MM-dd'T'HHmm", WED_2016_03_23_T_230705_CET,
WED_2016_03_23_T_230705_CET + 3 * CoreConstants.MILLIS_IN_ONE_MINUTE, 3);
checkPeriodBarriersCrossed("yyyy-MM-dd'T'HH", WED_2016_03_23_T_230705_CET,
WED_2016_03_23_T_230705_CET + 3 * CoreConstants.MILLIS_IN_ONE_HOUR, 3);
checkPeriodBarriersCrossed("yyyy-MM-dd", WED_2016_03_23_T_230705_CET,
WED_2016_03_23_T_230705_CET + 3 * CoreConstants.MILLIS_IN_ONE_DAY, 3);
}
private void checkPeriodBarriersCrossed(String pattern, long start, long end, int count) {
RollingCalendar rc = new RollingCalendar(pattern);
assertEquals(count, rc.periodBarriersCrossed(start, end));
}
@Test
public void testCollisionFreenes() {
// hourly
checkCollisionFreeness("yyyy-MM-dd hh", false);
checkCollisionFreeness("yyyy-MM-dd hh a", true);
checkCollisionFreeness("yyyy-MM-dd HH", true);
checkCollisionFreeness("yyyy-MM-dd kk", true);
checkCollisionFreeness("yyyy-MM-dd KK", false);
checkCollisionFreeness("yyyy-MM-dd KK a", true);
// daily
checkCollisionFreeness("yyyy-MM-dd", true);
checkCollisionFreeness("yyyy-dd", false);
checkCollisionFreeness("dd", false);
checkCollisionFreeness("MM-dd", false);
checkCollisionFreeness("yyyy-DDD", true);
checkCollisionFreeness("DDD", false);
// 'u' is new to JDK 7
// if (EnvUtil.isJDK7OrHigher()) {
// checkCollisionFreeness("yyyy-MM-dd-uu", true);
// checkCollisionFreeness("yyyy-MM-uu", false);
// }
Locale oldLocale = Locale.getDefault();
try {
set_EN_US_Locale();
// weekly
checkCollisionFreeness("yyyy-MM-W", true);
dumpCurrentLocale(Locale.getDefault());
checkCollisionFreeness("yyyy-W", false);
checkCollisionFreeness("yyyy-ww", true);
checkCollisionFreeness("ww", false);
} finally {
if(oldLocale != null)
Locale.setDefault(oldLocale);
}
}
private void dumpCurrentLocale(Locale locale) {
System.out.println("***Current default locale is " + locale);
}
private void checkCollisionFreeness(String pattern, boolean expected) {
RollingCalendar rc = new RollingCalendar(pattern);
assertEquals(expected, rc.isCollisionFree());
}
@Test
public void basicPeriodBarriersCrossed() {
RollingCalendar rc = new RollingCalendar(dailyPattern, TimeZone.getTimeZone("CET"), Locale.US);
// Thu Jan 26 19:46:58 CET 2017, GMT offset = -1h
long start = 1485456418969L;
// Fri Jan 27 19:46:58 CET 2017, GMT offset = -1h
long end = start + CoreConstants.MILLIS_IN_ONE_DAY;
assertEquals(1, rc.periodBarriersCrossed(start, end));
}
@Test
public void testPeriodBarriersCrossedWhenGoingIntoDaylightSaving() {
RollingCalendar rc = new RollingCalendar(dailyPattern, TimeZone.getTimeZone("CET"), Locale.US);
// Sun Mar 26 00:02:03 CET 2017, GMT offset = -1h
long start = 1490482923333L;
// Mon Mar 27 00:02:03 CEST 2017, GMT offset = -2h
long end = 1490565723333L;
assertEquals(1, rc.periodBarriersCrossed(start, end));
}
@Test
public void testPeriodBarriersCrossedWhenLeavingDaylightSaving() {
RollingCalendar rc = new RollingCalendar(dailyPattern, TimeZone.getTimeZone("CET"), Locale.US);
// Sun Oct 29 00:02:03 CEST 2017, GMT offset = -2h
long start = 1509228123333L;// 1490482923333L+217*CoreConstants.MILLIS_IN_ONE_DAY-CoreConstants.MILLIS_IN_ONE_HOUR;
// Mon Oct 30 00:02:03 CET 2017, GMT offset = -1h
long end = 1509228123333L + 25 * CoreConstants.MILLIS_IN_ONE_HOUR;
assertEquals(1, rc.periodBarriersCrossed(start, end));
}
@Test
public void testPeriodBarriersCrossedJustBeforeEnteringDaylightSaving() {
RollingCalendar rc = new RollingCalendar(dailyPattern, TimeZone.getTimeZone("CET"), Locale.US);
// Sun Mar 26 22:18:38 CEST 2017, GMT offset = +2h
long start = 1490559518333L;
System.out.println(new Date(start));
// Mon Mar 27 00:05:18 CEST 2017, GMT offset = +2h
long end = 1490565918333L;
System.out.println(new Date(end));
assertEquals(1, rc.periodBarriersCrossed(start, end));
}
}