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/** 
 * @file lltiming_test.cpp
 * @date 2006-07-23
 * @brief Tests the timers.
 *
 * $LicenseInfo:firstyear=2006&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "linden_common.h"

#include "../llframetimer.h"
#include "../llsd.h"

#include "../test/lltut.h"

namespace tut
{
	struct frametimer_test
	{
		frametimer_test()
		{
			LLFrameTimer::updateFrameTime();			
		}
	};
	typedef test_group<frametimer_test> frametimer_group_t;
	typedef frametimer_group_t::object frametimer_object_t;
	tut::frametimer_group_t frametimer_instance("frametimer");

	template<> template<>
	void frametimer_object_t::test<1>()
	{
		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
		LLFrameTimer timer;
		timer.setExpiryAt(seconds_since_epoch);
		F64 expires_at = timer.expiresAt();
		ensure_distance(
			"set expiry matches get expiry",
			expires_at,
			seconds_since_epoch,
			0.001);
	}

	template<> template<>
	void frametimer_object_t::test<2>()
	{
		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
		seconds_since_epoch += 10.0;
		LLFrameTimer timer;
		timer.setExpiryAt(seconds_since_epoch);
		F64 expires_at = timer.expiresAt();
		ensure_distance(
			"set expiry matches get expiry 1",
			expires_at,
			seconds_since_epoch,
			0.001);
		seconds_since_epoch += 10.0;
		timer.setExpiryAt(seconds_since_epoch);
		expires_at = timer.expiresAt();
		ensure_distance(
			"set expiry matches get expiry 2",
			expires_at,
			seconds_since_epoch,
			0.001);
	}
	template<> template<>
	void frametimer_object_t::test<3>()
	{
		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
		seconds_since_epoch += 2.0;
		LLFrameTimer timer;
		timer.setExpiryAt(seconds_since_epoch);
		ensure("timer not expired on create", !timer.hasExpired());
		int ii;
		for(ii = 0; ii < 10; ++ii)
		{
			ms_sleep(150);
			LLFrameTimer::updateFrameTime();			
		}
		ensure("timer not expired after a bit", !timer.hasExpired());
		for(ii = 0; ii < 10; ++ii)
		{
			ms_sleep(100);
			LLFrameTimer::updateFrameTime();			
		}
		ensure("timer expired", timer.hasExpired());
	}
/*
	template<> template<>
	void frametimer_object_t::test<4>()
	{
	}
*/
}