/*
 * 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/logstring.h>
#include <log4cxx/helpers/iso8601dateformat.h>
#include "../logunit.h"
#define LOG4CXX_TEST
#include <log4cxx/private/log4cxx_private.h>
#if LOG4CXX_HAS_STD_LOCALE
	#include <locale>
#endif
#include "../insertwide.h"
#include <log4cxx/helpers/pool.h>
#include <log4cxx/helpers/date.h>


using namespace log4cxx;
using namespace log4cxx::helpers;

/**
   Unit test {@link ISO8601DateFormat}.

   */
LOGUNIT_CLASS(ISO8601DateFormatTestCase)
{
	LOGUNIT_TEST_SUITE( ISO8601DateFormatTestCase );
	LOGUNIT_TEST( test1 );
	LOGUNIT_TEST( test2 );
	LOGUNIT_TEST( test3 );
	LOGUNIT_TEST( test4 );
	LOGUNIT_TEST( test5 );
	LOGUNIT_TEST( test6 );
	LOGUNIT_TEST( test7 );
	LOGUNIT_TEST_SUITE_END();

	/**
	 * Asserts that formatting the provided date results
	 * in the expected string.
	 *
	 * @param date Date date
	 * @param timeZone TimeZone timezone for conversion
	 * @param expected String expected string
	 */
	void assertFormattedTime(log4cxx_time_t date,
		const TimeZonePtr & timeZone,
		const LogString & expected)
	{
		ISO8601DateFormat formatter;
		formatter.setTimeZone(timeZone);
		LogString actual;
		Pool p;
		formatter.format(actual, date, p);
		LOGUNIT_ASSERT_EQUAL(expected, actual);
	}


public:
	/**
	 * Convert 02 Jan 2004 00:00:00 GMT for GMT.
	 */
	void test1()
	{
		log4cxx_time_t jan2 = Date::getMicrosecondsPerDay() * 12419;
		assertFormattedTime(jan2, TimeZone::getGMT(),
			LOG4CXX_STR("2004-01-02 00:00:00,000"));
	}

	/**
	 * Convert 03 Jan 2004 00:00:00 GMT for America/Chicago.
	 */
	void test2()
	{
		//
		//   03 Jan 2004 00:00 GMT
		//       (asking for the same time at a different timezone
		//          will ignore the change of timezone)
		log4cxx_time_t jan3 = Date::getMicrosecondsPerDay() * 12420;
		assertFormattedTime(jan3, TimeZone::getTimeZone(LOG4CXX_STR("GMT-6")),
			LOG4CXX_STR("2004-01-02 18:00:00,000"));
	}


	/**
	 * Convert 30 Jun 2004 00:00:00 GMT for GMT.
	 */
	void test3()
	{
		log4cxx_time_t jun30 = Date::getMicrosecondsPerDay() * 12599;
		assertFormattedTime(jun30, TimeZone::getGMT(),
			LOG4CXX_STR("2004-06-30 00:00:00,000"));
	}

	/**
	 * Convert 1 Jul 2004 00:00:00 GMT for Chicago, daylight savings in effect.
	 */
	void test4()
	{
		log4cxx_time_t jul1 = Date::getMicrosecondsPerDay() * 12600;
		assertFormattedTime(jul1, TimeZone::getTimeZone(LOG4CXX_STR("GMT-5")),
			LOG4CXX_STR("2004-06-30 19:00:00,000"));
	}

	/**
	 * Test multiple calls in close intervals.
	 */
	void test5()
	{
		//   subsequent calls within one minute
		//     are optimized to reuse previous formatted value
		//     make a couple of nearly spaced calls
		log4cxx_time_t ticks =  Date::getMicrosecondsPerDay() * 12601;
		assertFormattedTime(ticks, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-02 00:00:00,000"));
		assertFormattedTime(ticks + 8000, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-02 00:00:00,008"));
		assertFormattedTime(ticks + 17000, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-02 00:00:00,017"));
		assertFormattedTime(ticks + 237000, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-02 00:00:00,237"));
		assertFormattedTime(ticks + 1415000, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-02 00:00:01,415"));
	}

	/**
	 *  Check that caching does not disregard timezone.
	 * This test would fail for revision 1.4 of DateTimeDateFormat.java.
	 */
	void test6()
	{
		log4cxx_time_t jul3 =  Date::getMicrosecondsPerDay() * 12602;
		assertFormattedTime(jul3, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-03 00:00:00,000"));
		assertFormattedTime(jul3, TimeZone::getTimeZone(LOG4CXX_STR("GMT-5")),
			LOG4CXX_STR("2004-07-02 19:00:00,000"));
		assertFormattedTime(jul3, TimeZone::getGMT(),
			LOG4CXX_STR("2004-07-03 00:00:00,000"));
	}

	/**
	 * Checks that numberFormat is implemented.
	 */
	void test7()
	{
		LogString number;
		ISO8601DateFormat formatter;
		Pool p;
		formatter.numberFormat(number, 87, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("87"), number);
	}


};


LOGUNIT_TEST_SUITE_REGISTRATION(ISO8601DateFormatTestCase);