/** * @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("LLModularMath"); 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); } }