/*
 * 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.
 */

#include <log4cxx/helpers/cacheddateformat.h>
#include "../logunit.h"
#include <log4cxx/helpers/absolutetimedateformat.h>
#include <log4cxx/helpers/iso8601dateformat.h>
#include <log4cxx/helpers/relativetimedateformat.h>
#include <log4cxx/helpers/pool.h>
#include <locale>
#include "../insertwide.h"
#include <apr.h>
#include <apr_time.h>
#include "localechanger.h"

using namespace log4cxx;
using namespace log4cxx::helpers;
using namespace log4cxx::pattern;

#define LOCALE_US "C"
#if defined(_WIN32)
	#define LOCALE_JP "Japanese_japan"
#else
	#define LOCALE_JP "ja_JP"
#endif


//Define INT64_C for compilers that don't have it
#if (!defined(INT64_C))
	#define INT64_C(value)  value ##LL
#endif

#define LOG4CXX_TEST 1
#include <log4cxx/private/log4cxx_private.h>


/**
 * Unit test {@link CachedDateFormat}.
 */
LOGUNIT_CLASS(CachedDateFormatTestCase)
{
	LOGUNIT_TEST_SUITE( CachedDateFormatTestCase );
	LOGUNIT_TEST(test1);
	LOGUNIT_TEST(test2);
	LOGUNIT_TEST(test3);
	LOGUNIT_TEST(test4);
#if LOG4CXX_HAS_STD_LOCALE
	LOGUNIT_TEST(test5);
#endif
	LOGUNIT_TEST(test6);
	LOGUNIT_TEST(test8);
	//   Gump doesn't like this test
	//     LOGUNIT_TEST(test9);
	LOGUNIT_TEST(test10);
	LOGUNIT_TEST(test11);
	LOGUNIT_TEST(test12);
	LOGUNIT_TEST(test13);
	LOGUNIT_TEST(test14);
	LOGUNIT_TEST(test15);
	LOGUNIT_TEST(test16);
	LOGUNIT_TEST(test17);
	LOGUNIT_TEST(test18);
	LOGUNIT_TEST(test19);
	LOGUNIT_TEST(test20);
	LOGUNIT_TEST(test21);
	LOGUNIT_TEST(test22);
	LOGUNIT_TEST_SUITE_END();

#define MICROSECONDS_PER_DAY APR_INT64_C(86400000000)

public:

	/**
	 * Test multiple calls in close intervals.
	 */
	void test1()
	{
		//   subsequent calls within one minute
		//     are optimized to reuse previous formatted value
		//     make a couple of nearly spaced calls
		DateFormatPtr baseFormatter(new AbsoluteTimeDateFormat());
		CachedDateFormat gmtFormat(baseFormatter, 1000000);
		gmtFormat.setTimeZone(TimeZone::getGMT());

		apr_time_t jul1 = MICROSECONDS_PER_DAY * 12601L;
		Pool p;

		LogString actual;

		gmtFormat.format(actual, jul1, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,000"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, jul1 + 8000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,008"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, jul1 + 17000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,017"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, jul1 + 237000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,237"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, jul1 + 1415000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:01,415"), actual);
		actual.erase(actual.begin(), actual.end());

	}

	/**
	 *  Check for interaction between caches.
	 */

	void test2()
	{
		apr_time_t jul2 = MICROSECONDS_PER_DAY * 12602;
		DateFormatPtr baseFormatter(new AbsoluteTimeDateFormat());
		CachedDateFormat gmtFormat(baseFormatter, 1000000);
		gmtFormat.setTimeZone(TimeZone::getGMT());

		DateFormatPtr chicagoBase(new AbsoluteTimeDateFormat());
		CachedDateFormat chicagoFormat(chicagoBase, 1000000);
		chicagoFormat.setTimeZone(TimeZone::getTimeZone(LOG4CXX_STR("GMT-5")));

		Pool p;
		LogString actual;
		gmtFormat.format(actual, jul2, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,000"), actual);

		actual.erase(actual.begin(), actual.end());
		chicagoFormat.format(actual, jul2, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("19:00:00,000"), actual);

		actual.erase(actual.begin(), actual.end());
		gmtFormat.format(actual, jul2, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,000"), actual);
	}

	/**
	 * Test multiple calls in close intervals prior to 1 Jan 1970.
	 */
	void test3()
	{
		//   subsequent calls within one minute
		//     are optimized to reuse previous formatted value
		//     make a couple of nearly spaced calls
		DateFormatPtr baseFormatter(new AbsoluteTimeDateFormat());
		CachedDateFormat gmtFormat(baseFormatter, 1000000);
		gmtFormat.setTimeZone(TimeZone::getGMT());

		apr_time_t ticks = MICROSECONDS_PER_DAY * -7;

		Pool p;

		LogString actual;


		gmtFormat.format(actual, ticks, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,000"), actual);
		actual.erase(actual.begin(), actual.end());

		//
		//   APR's explode_time method does not properly calculate tm_usec
		//     prior to 1 Jan 1970 on Unix
		gmtFormat.format(actual, ticks + 8000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,008"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, ticks + 17000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,017"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, ticks + 237000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,237"), actual);
		actual.erase(actual.begin(), actual.end());

		gmtFormat.format(actual, ticks + 1423000, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:01,423"), actual);
	}

	void assertFormattedEquals(
		const DateFormatPtr & baseFormat,
		const CachedDateFormat & cachedFormat,
		apr_time_t date,
		Pool & p)
	{
		LogString expected;
		LogString actual;

		baseFormat->format(expected, date, p);
		cachedFormat.format(actual, date, p);


		LOGUNIT_ASSERT_EQUAL(expected, actual);
	}

	void test4()
	{
		//   subsequent calls within one minute
		//     are optimized to reuse previous formatted value
		//     make a couple of nearly spaced calls
#if LOG4CXX_HAS_STD_LOCALE
		std::locale loco(LOCALE_US);
		std::locale* localeEN = &loco;
#else
		std::locale* localeEN = NULL;
#endif
		DateFormatPtr baseFormat(
			new SimpleDateFormat(LOG4CXX_STR("EEE, MMM dd, HH:mm:ss.SSS Z"), localeEN));
		CachedDateFormat cachedFormat(baseFormat, 1000000);
		//
		//   use a date in 2000 to attempt to confuse the millisecond locator
		apr_time_t ticks = MICROSECONDS_PER_DAY * 11141;

		Pool p;

		assertFormattedEquals(baseFormat, cachedFormat, ticks, p);
		assertFormattedEquals(baseFormat, cachedFormat, ticks + 8000, p);
		assertFormattedEquals(baseFormat, cachedFormat, ticks + 17000, p);
		assertFormattedEquals(baseFormat, cachedFormat, ticks + 237000, p);
		assertFormattedEquals(baseFormat, cachedFormat, ticks + 1415000, p);
	}


#if LOG4CXX_HAS_STD_LOCALE
	void test5()
	{
		//   subsequent calls within one minute
		//     are optimized to reuse previous formatted value
		//     make a couple of nearly spaced calls
		LocaleChanger localeChange(LOCALE_JP);

		if (localeChange.isEffective())
		{
			DateFormatPtr baseFormat(new SimpleDateFormat(
					LOG4CXX_STR("EEE, MMM dd, HH:mm:ss.SSS Z")));
			CachedDateFormat cachedFormat(baseFormat, 1000000);
			//
			//   use a date in 2000 to attempt to confuse the millisecond locator
			apr_time_t ticks = MICROSECONDS_PER_DAY * 11141;

			Pool p;

			assertFormattedEquals(baseFormat, cachedFormat, ticks, p);
			assertFormattedEquals(baseFormat, cachedFormat, ticks + 8000, p);
			assertFormattedEquals(baseFormat, cachedFormat, ticks + 17000, p);
			assertFormattedEquals(baseFormat, cachedFormat, ticks + 237000, p);
			assertFormattedEquals(baseFormat, cachedFormat, ticks + 1415000, p);
		}
	}
#endif

	/**
	 * Checks that numberFormat works as expected.
	 */
	void test6()
	{
		LogString numb;
		Pool p;
		AbsoluteTimeDateFormat formatter;
		formatter.numberFormat(numb, 87, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("87"), numb);
	}


	/**
	 * Set time zone on cached and check that it is effective.
	 */
	void test8()
	{
		DateFormatPtr baseFormat(new SimpleDateFormat(LOG4CXX_STR("yyyy-MM-dd HH:mm:ss,SSS")));
		baseFormat->setTimeZone(TimeZone::getGMT());
		CachedDateFormat cachedFormat(baseFormat, 1000000);
		apr_time_t jul4 = MICROSECONDS_PER_DAY * 12603;

		Pool p;

		LogString actual;
		cachedFormat.format(actual, jul4, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("2004-07-04 00:00:00,000"), actual);

		cachedFormat.setTimeZone(TimeZone::getTimeZone(LOG4CXX_STR("GMT-6")));
		actual.erase(actual.begin(), actual.end());
		cachedFormat.format(actual, jul4, p);

		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("2004-07-03 18:00:00,000"), actual);
	}


	/**
	 * Test of caching when less than three millisecond digits are specified.
	 */
	void test9()
	{
		std::locale localeUS(LOCALE_US);

		DateFormatPtr baseFormat = new SimpleDateFormat(
			LOG4CXX_STR("yyyy-MMMM-dd HH:mm:ss,SS Z"), &localeUS);
		DateFormatPtr cachedFormat = new CachedDateFormat(baseFormat, 1000000);
		TimeZonePtr cet = TimeZone::getTimeZone(LOG4CXX_STR("GMT+1"));
		cachedFormat->setTimeZone(cet);


		apr_time_exp_t c;
		memset(&c, 0, sizeof(c));
		c.tm_year = 104;
		c.tm_mon = 11;
		c.tm_mday = 12;
		c.tm_hour = 19;
		c.tm_sec = 37;
		c.tm_usec = 23000;

		apr_time_t dec12;
		apr_status_t stat = apr_time_exp_gmt_get(&dec12, &c);
		const apr_status_t statOK = 0;
		LOGUNIT_ASSERT_EQUAL(statOK, stat);

		Pool p;

		LogString s;
		cachedFormat->format(s, dec12, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("2004-December-12 20:00:37,23 +0100"), s);

		memset(&c, 0, sizeof(c));
		c.tm_year = 104;
		c.tm_mon = 11;
		c.tm_mday = 31;
		c.tm_hour = 23;
		c.tm_sec = 13;
		c.tm_usec = 905000;

		apr_time_t jan1;
		stat = apr_time_exp_gmt_get(&jan1, &c);
		LOGUNIT_ASSERT_EQUAL(statOK, stat);

		s.erase(s.begin(), s.end());
		cachedFormat->format(s, jan1, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("2005-January-01 00:00:13,905 +0100"), s);
	}


	/**
	 * Test when millisecond position moves but length remains constant.
	 */
	void test10()
	{
#if LOG4CXX_HAS_STD_LOCALE
		std::locale loco("C");
		std::locale* localeUS = &loco;
#else
		std::locale* localeUS = NULL;
#endif
		DateFormatPtr baseFormat = new SimpleDateFormat(
			LOG4CXX_STR("MMMM SSS EEEEEE"), localeUS);
		DateFormatPtr cachedFormat = new CachedDateFormat(baseFormat, 1000000);
		TimeZonePtr cet = TimeZone::getTimeZone(LOG4CXX_STR("GMT+1"));
		cachedFormat->setTimeZone(cet);

		apr_time_exp_t c;
		memset(&c, 0, sizeof(c));
		c.tm_year = 104;
		c.tm_mon = 9;
		c.tm_mday = 5;
		c.tm_hour = 21;
		c.tm_sec = 37;
		c.tm_usec = 23000;

		apr_time_t oct5;
		apr_status_t stat = apr_time_exp_gmt_get(&oct5, &c);
		const apr_status_t statOK = 0;
		LOGUNIT_ASSERT_EQUAL(statOK, stat);

		Pool p;

		LogString s;
		cachedFormat->format(s, oct5, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("October 023 Tuesday"), s);

		memset(&c, 0, sizeof(c));
		c.tm_year = 104;
		c.tm_mon = 10;
		c.tm_mday = 1;
		c.tm_usec = 23000;

		apr_time_t nov1;
		stat = apr_time_exp_gmt_get(&nov1, &c);
		LOGUNIT_ASSERT_EQUAL(statOK, stat);

		s.erase(s.begin(), s.end());
		cachedFormat->format(s, nov1, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("November 023 Monday"), s);

		nov1 += 961000;
		s.erase(s.begin(), s.end());
		cachedFormat->format(s, nov1, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("November 984 Monday"), s);
	}

	/**
	 * Test that tests if caching is skipped if only "SS"
	 *     is specified.
	 */
	void test11()
	{
		//
		//   Earlier versions could be tricked by "SS0" patterns.
		//
		LogString badPattern(LOG4CXX_STR("ss,SS0"));
		DateFormatPtr simpleFormat = new SimpleDateFormat(badPattern);
		DateFormatPtr gmtFormat = new CachedDateFormat(simpleFormat, 1000000);
		gmtFormat->setTimeZone(TimeZone::getGMT());

		//
		// The first request has to 100 ms after an ordinal second
		//    to push the literal zero out of the pattern check
		apr_time_t ticks = MICROSECONDS_PER_DAY * 11142L;
		apr_time_t jul2 = ticks + 120000;

		Pool p;

		LogString s;
		gmtFormat->format(s, jul2, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("00,1200"), s);

		jul2 = ticks + 87000;

		s.erase(s.begin(), s.end());
		gmtFormat->format(s, jul2, p);

		LOGUNIT_ASSERT_EQUAL(
			(LogString) LOG4CXX_STR("00,870"), s);
	}

	/**
	 * Check pattern location for ISO8601
	 */
	void test12()
	{
		DateFormatPtr df    = new SimpleDateFormat(LOG4CXX_STR("yyyy-MM-dd HH:mm:ss,SSS"));
		apr_time_t    ticks = 11142L * MICROSECONDS_PER_DAY;
		Pool p;
		LogString formatted;

		df->format(formatted, ticks, p);
		int msStart = CachedDateFormat::findMillisecondStart(ticks, formatted, df, p);
		LOGUNIT_ASSERT_EQUAL(20, msStart);

		// Test for for milliseconds overlapping with the magic ones as per LOGCXX-420.
		apr_time_exp_t c;
		memset(&c, 0, sizeof(c));
		c.tm_year = 110;
		c.tm_mon  = 7;
		c.tm_mday = 12;
		c.tm_hour = 9;
		c.tm_min  = 4;
		c.tm_sec  = 50;
		c.tm_usec = 406000;

		LOGUNIT_ASSERT_EQUAL(0, apr_time_exp_gmt_get(&ticks, &c));

		formatted.clear();
		df->format(formatted, ticks, p);
		msStart = CachedDateFormat::findMillisecondStart(ticks, formatted, df, p);
		LOGUNIT_ASSERT_EQUAL(20, msStart);

		c.tm_usec = 609000;
		LOGUNIT_ASSERT_EQUAL(0, apr_time_exp_gmt_get(&ticks, &c));

		formatted.clear();
		df->format(formatted, ticks, p);
		msStart = CachedDateFormat::findMillisecondStart(ticks, formatted, df, p);
		LOGUNIT_ASSERT_EQUAL(20, msStart);
	}

	/**
	 * Check pattern location for DATE
	 */
	void test13()
	{
		DateFormatPtr df = new SimpleDateFormat(LOG4CXX_STR("yyyy-MM-dd"));
		apr_time_t ticks = 11142L * MICROSECONDS_PER_DAY;

		Pool p;

		LogString formatted;
		df->format(formatted, ticks, p);

		int millisecondStart = CachedDateFormat::findMillisecondStart(ticks,
				formatted, df, p);
		LOGUNIT_ASSERT_EQUAL((int) CachedDateFormat::NO_MILLISECONDS, millisecondStart);
	}

	/**
	 * Check pattern location for ABSOLUTE
	 */
	void test14()
	{
		DateFormatPtr df = new SimpleDateFormat(LOG4CXX_STR("HH:mm:ss,SSS"));
		apr_time_t ticks = 11142L * MICROSECONDS_PER_DAY;

		Pool p;
		LogString formatted;
		df->format(formatted, ticks, p);

		int millisecondStart = CachedDateFormat::findMillisecondStart(ticks,
				formatted, df, p);
		LOGUNIT_ASSERT_EQUAL(9, millisecondStart);
	}

	/**
	 * Check pattern location for single S
	 */
	void test15()
	{
		DateFormatPtr df = new SimpleDateFormat(LOG4CXX_STR("HH:mm:ss,S"));
		apr_time_t ticks = 11142L * MICROSECONDS_PER_DAY;

		Pool p;
		LogString formatted;
		df->format(formatted, ticks, p);

		int millisecondStart = CachedDateFormat::findMillisecondStart(ticks,
				formatted, df, p);
		LOGUNIT_ASSERT_EQUAL((int) CachedDateFormat::UNRECOGNIZED_MILLISECONDS, millisecondStart);
	}

	/**
	 * Check pattern location for single SS
	 */
	void test16()
	{
		DateFormatPtr df = new SimpleDateFormat(LOG4CXX_STR("HH:mm:ss,SS"));
		apr_time_t ticks = 11142L * MICROSECONDS_PER_DAY;

		Pool p;
		LogString formatted;
		df->format(formatted, ticks, p);

		int millisecondStart =
			CachedDateFormat::findMillisecondStart(ticks, formatted, df, p);
		LOGUNIT_ASSERT_EQUAL((int) CachedDateFormat::UNRECOGNIZED_MILLISECONDS, millisecondStart);
	}

	/**
	 * Check caching when multiple SSS appear in pattern
	 */
	void test17()
	{
		apr_time_t jul2 = 12602L * MICROSECONDS_PER_DAY;
		LogString badPattern(LOG4CXX_STR("HH:mm:ss,SSS HH:mm:ss,SSS"));
		DateFormatPtr simpleFormat = new SimpleDateFormat(badPattern);
		simpleFormat->setTimeZone(TimeZone::getGMT());
		DateFormatPtr cachedFormat = new CachedDateFormat(simpleFormat, 1000000);

		Pool p;
		LogString s;
		cachedFormat->format(s, jul2, p);

		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,000 00:00:00,000"), s);
		jul2 += 120000;

		s.erase(s.begin(), s.end());
		simpleFormat->format(s, jul2, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,120 00:00:00,120"), s);

		s.erase(s.begin(), s.end());
		int msStart = CachedDateFormat::findMillisecondStart(jul2, s, simpleFormat, p);
		LOGUNIT_ASSERT_EQUAL((int) CachedDateFormat::UNRECOGNIZED_MILLISECONDS, msStart);

		cachedFormat->format(s, jul2, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("00:00:00,120 00:00:00,120"), s) ;

		int maxValid = CachedDateFormat::getMaximumCacheValidity(badPattern);
		LOGUNIT_ASSERT_EQUAL(1000, maxValid);

		// Test overlapping millis with a magic string from CachedDateFormat for LOGCXX-420.
		s.clear();
		jul2 += 286000;
		cachedFormat->format(s, jul2, p);
		msStart = CachedDateFormat::findMillisecondStart(jul2, s, simpleFormat, p);
		LOGUNIT_ASSERT_EQUAL((int) CachedDateFormat::UNRECOGNIZED_MILLISECONDS, msStart);

		s.clear();
		jul2 += 203000;
		cachedFormat->format(s, jul2, p);
		msStart = CachedDateFormat::findMillisecondStart(jul2, s, simpleFormat, p);
		LOGUNIT_ASSERT_EQUAL((int) CachedDateFormat::UNRECOGNIZED_MILLISECONDS, msStart);
	}

	/**
	 * Check that patterns not containing microseconds
	 * are reported as being able to be cached for a full second.
	 */
	void test18()
	{

		int maxValid =
			CachedDateFormat::getMaximumCacheValidity(
				LOG4CXX_STR("yyyy-MM-dd"));
		LOGUNIT_ASSERT_EQUAL(1000000, maxValid);
	}

	/**
	 * Check that patterns not containing 3 microseconds
	 * are reported as being able to be cached for a full second.
	 */
	void test19()
	{

		int maxValid =
			CachedDateFormat::getMaximumCacheValidity(
				LOG4CXX_STR("yyyy-MM-dd SSS"));
		LOGUNIT_ASSERT_EQUAL(1000000, maxValid);
	}

	/**
	 * Check that patterns not containing 2 S's
	 * are reported as being able to be cached for only a millisecond.
	 */
	void test20()
	{

		int maxValid =
			CachedDateFormat::getMaximumCacheValidity(
				LOG4CXX_STR("yyyy-MM-dd SS"));
		LOGUNIT_ASSERT_EQUAL(1000, maxValid);
	}

	/**
	 * Check that patterns not containing multi S groups
	 * are reported as being able to be cached for only a millisecond.
	 */
	void test21()
	{

		int maxValid =
			CachedDateFormat::getMaximumCacheValidity(
				LOG4CXX_STR("yyyy-MM-dd SSS SSS"));
		LOGUNIT_ASSERT_EQUAL(1000, maxValid);
	}

	/**
	 * Check that findMillisecondStart correctly handles timestamps
	 * which use the magic millisecond value 654.
	 */
	void test22()
	{
		DateFormatPtr baseFormatter(new ISO8601DateFormat());
		CachedDateFormat isoFormat(baseFormatter, 1000000);
		isoFormat.setTimeZone(TimeZone::getGMT());

		Pool p;
		LogString formatted;

		isoFormat.format(formatted, 654000, p);
		LOGUNIT_ASSERT_EQUAL(LOG4CXX_STR("1970-01-01 00:00:00,654"), formatted);

		formatted.clear();
		isoFormat.format(formatted, 999000, p);
		LOGUNIT_ASSERT_EQUAL(LOG4CXX_STR("1970-01-01 00:00:00,999"), formatted);

		formatted.clear();
		isoFormat.format(formatted, 1654010, p);
		LOGUNIT_ASSERT_EQUAL(LOG4CXX_STR("1970-01-01 00:00:01,654"), formatted);

		formatted.clear();
		isoFormat.format(formatted, 1999010, p);
		LOGUNIT_ASSERT_EQUAL(LOG4CXX_STR("1970-01-01 00:00:01,999"), formatted);
	}

};

LOGUNIT_TEST_SUITE_REGISTRATION(CachedDateFormatTestCase);