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/**
* @file llprocinfo_test.cpp
* @brief Tests for the LLProcInfo class.
*
* $LicenseInfo:firstyear=2013&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2013, 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 "../llprocinfo.h"
#include "../test/lltut.h"
#include "../lltimer.h"
static const LLProcInfo::time_type bad_user(289375U), bad_system(275U);
namespace tut
{
struct procinfo_test
{
procinfo_test()
{
}
};
typedef test_group<procinfo_test> procinfo_group_t;
typedef procinfo_group_t::object procinfo_object_t;
tut::procinfo_group_t procinfo_instance("LLProcInfo");
// Basic invocation works
template<> template<>
void procinfo_object_t::test<1>()
{
LLProcInfo::time_type user(bad_user), system(bad_system);
set_test_name("getCPUUsage() basic function");
LLProcInfo::getCPUUsage(user, system);
ensure_not_equals("getCPUUsage() writes to its user argument", user, bad_user);
ensure_not_equals("getCPUUsage() writes to its system argument", system, bad_system);
}
// Time increases
template<> template<>
void procinfo_object_t::test<2>()
{
LLProcInfo::time_type user(bad_user), system(bad_system);
LLProcInfo::time_type user2(bad_user), system2(bad_system);
set_test_name("getCPUUsage() increases over time");
LLProcInfo::getCPUUsage(user, system);
for (int i(0); i < 100000; ++i)
{
ms_sleep(0);
}
LLProcInfo::getCPUUsage(user2, system2);
ensure_equals("getCPUUsage() user value doesn't decrease over time", user2 >= user, true);
ensure_equals("getCPUUsage() system value doesn't decrease over time", system2 >= system, true);
}
} // end namespace tut
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