mirror of
https://github.com/aaru-dps/Aaru.Compression.Native.git
synced 2026-09-17 04:06:47 +00:00
Natalia Portillo
882b775f71
- Implemented LZSS compression in lha/lzss.c and lha/lzss.h. - Added PMarc decompression functionality in lha/pmarc1.c and lha/pmarc1.h. - Updated library.h to include declarations for new decompression functions. - Enhanced tests to cover LHA decompression for LH1, LH6, and PMarc formats. - Added test helpers for loading LHA payloads and validating decompression results. - Included sample data files for testing LHA and PMarc decompression.
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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* This file is part of the Aaru Data Preservation Suite.
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* Copyright (c) 2019-2026 Natalia Portillo.
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* 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, see <http://www.gnu.org/licenses/>.
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*/
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#include <climits>
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#include <cstddef>
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#include <cstdint>
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#include "../../library.h"
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#include "../../lha/lh_old.h"
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#include "../crc32.h"
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#include "gtest/gtest.h"
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#include "lha_helpers.h"
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/* PMarc -pm2- decompresses to 152192 bytes */
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#define PM2_EXPECTED_SIZE 152192
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#define PM2_EXPECTED_CRC32 0x1bbf031e
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static uint8_t *pm2_payload;
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static lha_test_info pm2_info;
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class pm2Fixture : public ::testing::Test
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{
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protected:
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void SetUp()
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{
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char path[PATH_MAX];
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char filename[PATH_MAX];
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getcwd(path, PATH_MAX);
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snprintf(filename, PATH_MAX, "%s/data/pmarc_pm2.pma", path);
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pm2_payload = load_lha_payload(filename, &pm2_info);
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}
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void TearDown()
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{
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if(pm2_payload) free(pm2_payload);
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}
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};
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TEST_F(pm2Fixture, pm2_decompress)
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{
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ASSERT_NE(pm2_payload, nullptr);
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EXPECT_EQ(pm2_info.uncompressed_size, (uint32_t)PM2_EXPECTED_SIZE);
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size_t out_len = PM2_EXPECTED_SIZE;
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uint8_t *out_buf = (uint8_t *)malloc(out_len);
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int err = pmarc_decompress_pm2(pm2_payload, pm2_info.payload_size, out_buf, &out_len);
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EXPECT_EQ(err, 0);
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EXPECT_EQ(out_len, (size_t)PM2_EXPECTED_SIZE);
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uint32_t crc = crc32_data(out_buf, (uint32_t)out_len);
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free(out_buf);
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/* Validate CRC32 of decompressed data */
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EXPECT_EQ(crc, (uint32_t)PM2_EXPECTED_CRC32);
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}
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