/** * @file bitpack_test.cpp * @author Adroit * @date 2007-02 * @brief llstreamtools test cases. * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * 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 "../bitpack.h" #include "../test/lltut.h" namespace tut { struct bit_pack { }; typedef test_group<bit_pack> bit_pack_t; typedef bit_pack_t::object bit_pack_object_t; tut::bit_pack_t tut_bit_pack("LLBitPack"); // pack -> unpack template<> template<> void bit_pack_object_t::test<1>() { U8 packbuffer[255]; U8 unpackbuffer[255]; int pack_bufsize = 0; int unpack_bufsize = 0; LLBitPack bitpack(packbuffer, 255); char str[] = "SecondLife is a 3D virtual world"; int len = sizeof(str); pack_bufsize = bitpack.bitPack((U8*) str, len*8); pack_bufsize = bitpack.flushBitPack(); LLBitPack bitunpack(packbuffer, pack_bufsize*8); unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, len*8); ensure("bitPack: unpack size should be same as string size prior to pack", len == unpack_bufsize); ensure_memory_matches("str->bitPack->bitUnpack should be equal to string", str, len, unpackbuffer, unpack_bufsize); } // pack large, unpack in individual bytes template<> template<> void bit_pack_object_t::test<2>() { U8 packbuffer[255]; U8 unpackbuffer[255]; int pack_bufsize = 0; int unpack_bufsize = 0; LLBitPack bitpack(packbuffer, 255); char str[] = "SecondLife"; int len = sizeof(str); pack_bufsize = bitpack.bitPack((U8*) str, len*8); pack_bufsize = bitpack.flushBitPack(); LLBitPack bitunpack(packbuffer, pack_bufsize*8); unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); ensure("bitPack: individual unpack: 0", unpackbuffer[0] == (U8) str[0]); unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); ensure("bitPack: individual unpack: 1", unpackbuffer[0] == (U8) str[1]); unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); ensure("bitPack: individual unpack: 2", unpackbuffer[0] == (U8) str[2]); unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); ensure("bitPack: individual unpack: 3", unpackbuffer[0] == (U8) str[3]); unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); ensure("bitPack: individual unpack: 4", unpackbuffer[0] == (U8) str[4]); unpack_bufsize = bitunpack.bitUnpack(&unpackbuffer[0], 8); ensure("bitPack: individual unpack: 5", unpackbuffer[0] == (U8) str[5]); unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, 8*4); // Life ensure_memory_matches("bitPack: 4 bytes unpack:", unpackbuffer, 4, str+6, 4); ensure("keep compiler quiet", unpack_bufsize == unpack_bufsize); } // U32 packing template<> template<> void bit_pack_object_t::test<3>() { U8 packbuffer[255]; int pack_bufsize = 0; LLBitPack bitpack(packbuffer, 255); U32 num = 0x41fab67a; pack_bufsize = bitpack.bitPack((U8*)&num, 8*sizeof(U32)); pack_bufsize = bitpack.flushBitPack(); LLBitPack bitunpack(packbuffer, pack_bufsize*8); U32 res = 0; // since packing and unpacking is done on same machine in the unit test run, // endianness should not matter bitunpack.bitUnpack((U8*) &res, sizeof(res)*8); ensure("U32->bitPack->bitUnpack->U32 should be equal", num == res); } }