119 lines
3.8 KiB
C++
Executable File
119 lines
3.8 KiB
C++
Executable File
/**
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* @file bitpack_test.cpp
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* @author Adroit
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* @date 2007-02
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* @brief llstreamtools test cases.
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*
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* $LicenseInfo:firstyear=2007&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "../llbitpack.h"
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#include "../test/lltut.h"
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namespace tut
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{
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struct bit_pack
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{
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};
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typedef test_group<bit_pack> bit_pack_t;
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typedef bit_pack_t::object bit_pack_object_t;
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tut::bit_pack_t tut_bit_pack("LLBitPack");
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// pack -> unpack
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template<> template<>
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void bit_pack_object_t::test<1>()
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{
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U8 packbuffer[255];
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U8 unpackbuffer[255];
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int pack_bufsize = 0;
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int unpack_bufsize = 0;
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LLBitPack bitpack(packbuffer, 255);
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char str[] = "SecondLife is a 3D virtual world";
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int len = sizeof(str);
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pack_bufsize = bitpack.bitPack((U8*) str, len*8);
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pack_bufsize = bitpack.flushBitPack();
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LLBitPack bitunpack(packbuffer, pack_bufsize*8);
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unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, len*8);
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ensure("bitPack: unpack size should be same as string size prior to pack", len == unpack_bufsize);
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ensure_memory_matches("str->bitPack->bitUnpack should be equal to string", str, len, unpackbuffer, unpack_bufsize);
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}
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// pack large, unpack in individual bytes
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template<> template<>
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void bit_pack_object_t::test<2>()
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{
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U8 packbuffer[255];
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U8 unpackbuffer[255];
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int pack_bufsize = 0;
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LLBitPack bitpack(packbuffer, 255);
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char str[] = "SecondLife";
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int len = sizeof(str);
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pack_bufsize = bitpack.bitPack((U8*) str, len*8);
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pack_bufsize = bitpack.flushBitPack();
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LLBitPack bitunpack(packbuffer, pack_bufsize*8);
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bitunpack.bitUnpack(&unpackbuffer[0], 8);
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ensure("bitPack: individual unpack: 0", unpackbuffer[0] == (U8) str[0]);
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bitunpack.bitUnpack(&unpackbuffer[0], 8);
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ensure("bitPack: individual unpack: 1", unpackbuffer[0] == (U8) str[1]);
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bitunpack.bitUnpack(&unpackbuffer[0], 8);
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ensure("bitPack: individual unpack: 2", unpackbuffer[0] == (U8) str[2]);
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bitunpack.bitUnpack(&unpackbuffer[0], 8);
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ensure("bitPack: individual unpack: 3", unpackbuffer[0] == (U8) str[3]);
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bitunpack.bitUnpack(&unpackbuffer[0], 8);
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ensure("bitPack: individual unpack: 4", unpackbuffer[0] == (U8) str[4]);
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bitunpack.bitUnpack(&unpackbuffer[0], 8);
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ensure("bitPack: individual unpack: 5", unpackbuffer[0] == (U8) str[5]);
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bitunpack.bitUnpack(unpackbuffer, 8*4); // Life
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ensure_memory_matches("bitPack: 4 bytes unpack:", unpackbuffer, 4, str+6, 4);
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}
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// U32 packing
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template<> template<>
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void bit_pack_object_t::test<3>()
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{
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U8 packbuffer[255];
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int pack_bufsize = 0;
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LLBitPack bitpack(packbuffer, 255);
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U32 num = 0x41fab67a;
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pack_bufsize = bitpack.bitPack((U8*)&num, 8*sizeof(U32));
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pack_bufsize = bitpack.flushBitPack();
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LLBitPack bitunpack(packbuffer, pack_bufsize*8);
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U32 res = 0;
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// since packing and unpacking is done on same machine in the unit test run,
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// endianness should not matter
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bitunpack.bitUnpack((U8*) &res, sizeof(res)*8);
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ensure("U32->bitPack->bitUnpack->U32 should be equal", num == res);
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}
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}
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