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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("LLFrameTimer");
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);
/*
* Note that the ms_sleep(200) below is only guaranteed to return
* in 200ms _or_more_, so it should be true that by the 10th
* iteration we've gotten to the 2 seconds requested above
* and the timer should expire, but it can expire in fewer iterations
* if one or more of the ms_sleep calls takes longer.
* (as it did when we moved to Mac OS X 10.10)
*/
int iterations_until_expiration = 0;
while ( !timer.hasExpired() )
{
ms_sleep(200);
LLFrameTimer::updateFrameTime();
iterations_until_expiration++;
}
ensure("timer took too long to expire", iterations_until_expiration <= 10);
}
/*
template<> template<>
void frametimer_object_t::test<4>()
{
}
*/
}
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