/*
 * 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 "../logunit.h"
#include <log4cxx/logstring.h>
#include <log4cxx/helpers/absolutetimedateformat.h>
#include "../insertwide.h"
#include <apr.h>
#include <apr_time.h>
#include <log4cxx/helpers/pool.h>

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


using namespace log4cxx;
using namespace log4cxx::helpers;


/**
   Unit test {@link AbsoluteTimeDateFormat}.

   */
LOGUNIT_CLASS(AbsoluteTimeDateFormatTestCase)
{
	LOGUNIT_TEST_SUITE(AbsoluteTimeDateFormatTestCase);
	LOGUNIT_TEST(test1);
	LOGUNIT_TEST(test2);
	LOGUNIT_TEST(test3);
	LOGUNIT_TEST(test4);
	LOGUNIT_TEST(test5);
	LOGUNIT_TEST(test6);
	LOGUNIT_TEST(test7);
	LOGUNIT_TEST(test8);
	LOGUNIT_TEST_SUITE_END();

public:

	/**
	 * 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
	 */
private:
	void assertFormattedTime(apr_time_t date,
		const TimeZonePtr & timeZone,
		const LogString & expected)
	{
		AbsoluteTimeDateFormat formatter;
		formatter.setTimeZone(timeZone);
		LogString actual;
		Pool p;
		formatter.format(actual, date, p);
		LOGUNIT_ASSERT_EQUAL(expected, actual);
	}

#define MICROSECONDS_PER_DAY APR_INT64_C(86400000000)

public:
	/**
	 * Convert 02 Jan 2004 00:00:00 GMT for GMT.
	 */
	void test1()
	{
		//
		//   02 Jan 2004 00:00 GMT
		//
		apr_time_t jan2 = MICROSECONDS_PER_DAY * 12419;
		assertFormattedTime(jan2, TimeZone::getGMT(), LOG4CXX_STR("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)
		apr_time_t jan2 = MICROSECONDS_PER_DAY * 12420;
		assertFormattedTime(jan2, TimeZone::getTimeZone(LOG4CXX_STR("GMT-6")), LOG4CXX_STR("18:00:00,000"));
	}

	/**
	 * Convert 29 Jun 2004 00:00:00 GMT for GMT.
	 */
	void test3()
	{
		apr_time_t jun29 = MICROSECONDS_PER_DAY * 12599;
		assertFormattedTime(jun29, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,000"));
	}

	/**
	 * Convert 29 Jun 2004 00:00:00 GMT for Chicago, daylight savings in effect.
	 */
	void test4()
	{
		apr_time_t jun30 = MICROSECONDS_PER_DAY * 12600;
		//
		//   log4cxx doesn't support non-fixed timezones at this time
		//      passing the fixed equivalent to Chicago's Daylight Savings Time
		//
		assertFormattedTime(jun30, TimeZone::getTimeZone(LOG4CXX_STR("GMT-5")), LOG4CXX_STR("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
		apr_time_t ticks = MICROSECONDS_PER_DAY * 12601;
		assertFormattedTime(ticks, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,000"));
		assertFormattedTime(ticks + 8000, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,008"));
		assertFormattedTime(ticks + 17000, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,017"));
		assertFormattedTime(ticks + 237000, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,237"));
		assertFormattedTime(ticks + 1415000, TimeZone::getGMT(), LOG4CXX_STR("00:00:01,415"));
	}

	/**
	 *  Check that caching does not disregard timezone.
	 * This test would fail for revision 1.4 of AbsoluteTimeDateFormat.java.
	 */
	void test6()
	{
		apr_time_t jul2 = MICROSECONDS_PER_DAY * 12602;
		assertFormattedTime(jul2, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,000"));
		assertFormattedTime(jul2, TimeZone::getTimeZone(LOG4CXX_STR("GMT-5")), LOG4CXX_STR("19:00:00,000"));
	}

	/**
	 * Test multiple calls in close intervals predating 1 Jan 1970.
	 */
	void test7()
	{
		//   subsequent calls within one minute
		//     are optimized to reuse previous formatted value
		//     make a couple of nearly spaced calls
		apr_time_t ticks = MICROSECONDS_PER_DAY * -7;
		assertFormattedTime(ticks, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,000"));
#if defined(_WIN32)
		//
		//   These tests fail on Unix due to bug in APR's explode_time
		//
		//    assertFormattedTime(ticks + 8000, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,008"));
		//    assertFormattedTime(ticks + 17000, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,017"));
		//    assertFormattedTime(ticks + 237000, TimeZone::getGMT(), LOG4CXX_STR("00:00:00,237"));
		//    assertFormattedTime(ticks + 1415000, TimeZone::getGMT(), LOG4CXX_STR("00:00:01,415"));
#endif
	}

	/**
	 * Checks that numberFormat works as expected.
	 */
	void test8()
	{
		Pool p;
		LogString numb;
		AbsoluteTimeDateFormat formatter;
		formatter.numberFormat(numb, 87, p);
		LOGUNIT_ASSERT_EQUAL((LogString) LOG4CXX_STR("87"), numb);
	}

};

LOGUNIT_TEST_SUITE_REGISTRATION(AbsoluteTimeDateFormatTestCase);