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/**
* @file modularmath_test.cpp
* @author babbage
* @date 2008-09
* @brief llmodularmath tests
*
* $LicenseInfo:firstyear=2007&license=viewerlgpl$
* 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 "../llmodularmath.h"
#include "../test/lltut.h"
namespace tut
{
struct modularmath_data
{
};
typedef test_group<modularmath_data> modularmath_test;
typedef modularmath_test::object modularmath_object;
tut::modularmath_test modularmath_testcase("modularmath");
template<> template<>
void modularmath_object::test<1>()
{
// lhs < rhs
const U32 lhs = 0x000001;
const U32 rhs = 0xFFFFFF;
const U32 width = 24;
U32 result = LLModularMath::subtract<width>(lhs, rhs);
ensure_equals("diff(0x000001, 0xFFFFFF, 24)", result, 2);
}
template<> template<>
void modularmath_object::test<2>()
{
// lhs > rhs
const U32 lhs = 0x000002;
const U32 rhs = 0x000001;
const U32 width = 24;
U32 result = LLModularMath::subtract<width>(lhs, rhs);
ensure_equals("diff(0x000002, 0x000001, 24)", result, 1);
}
template<> template<>
void modularmath_object::test<3>()
{
// lhs == rhs
const U32 lhs = 0xABCDEF;
const U32 rhs = 0xABCDEF;
const U32 width = 24;
U32 result = LLModularMath::subtract<width>(lhs, rhs);
ensure_equals("diff(0xABCDEF, 0xABCDEF, 24)", result, 0);
}
}
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