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C++

/*
* This file is part of the Aaru Data Preservation Suite.
* Copyright (c) 2019-2026 Natalia Portillo.
*
* 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; either version 2.1 of the
* License, or (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <climits>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include "../../library.h"
#include "../crc32.h"
#include "gtest/gtest.h"
#define EXPECTED_CRC32 0x66007DBA
#define EXPECTED_ORIGSIZE 152089
/* ---- RLE only (STORE.CPT data fork) ---- */
#define RLE_COMPRESSED_SIZE 150125
static const uint8_t *rle_buffer;
class CptRleFixture : public ::testing::Test
{
protected:
void SetUp()
{
char path[PATH_MAX];
char filename[PATH_MAX];
getcwd(path, PATH_MAX);
snprintf(filename, PATH_MAX, "%s/data/cpt_rle.bin", path);
FILE *file = fopen(filename, "rb");
rle_buffer = (const uint8_t *)malloc(RLE_COMPRESSED_SIZE);
fread((void *)rle_buffer, 1, RLE_COMPRESSED_SIZE, file);
fclose(file);
}
void TearDown() { free((void *)rle_buffer); }
};
TEST_F(CptRleFixture, cpt_rle)
{
size_t destLen = EXPECTED_ORIGSIZE;
auto *outBuf = (uint8_t *)malloc(EXPECTED_ORIGSIZE);
auto err = AARU_cpt_rle_decode_buffer(outBuf, &destLen, rle_buffer, RLE_COMPRESSED_SIZE);
EXPECT_EQ(err, 0);
EXPECT_EQ(destLen, (size_t)EXPECTED_ORIGSIZE);
auto crc = crc32_data(outBuf, EXPECTED_ORIGSIZE);
free(outBuf);
EXPECT_EQ(crc, EXPECTED_CRC32);
}
/* ---- LZH + RLE (DEFAULTS.CPT data fork) ---- */
#define LZH_RLE_COMPRESSED_SIZE 61101
static const uint8_t *lzh_rle_buffer;
class CptLzhRleFixture : public ::testing::Test
{
protected:
void SetUp()
{
char path[PATH_MAX];
char filename[PATH_MAX];
getcwd(path, PATH_MAX);
snprintf(filename, PATH_MAX, "%s/data/cpt_lzh_rle.bin", path);
FILE *file = fopen(filename, "rb");
lzh_rle_buffer = (const uint8_t *)malloc(LZH_RLE_COMPRESSED_SIZE);
fread((void *)lzh_rle_buffer, 1, LZH_RLE_COMPRESSED_SIZE, file);
fclose(file);
}
void TearDown() { free((void *)lzh_rle_buffer); }
};
TEST_F(CptLzhRleFixture, cpt_lzh_rle)
{
size_t destLen = EXPECTED_ORIGSIZE;
auto *outBuf = (uint8_t *)malloc(EXPECTED_ORIGSIZE);
auto err = AARU_cpt_lzh_rle_decode_buffer(outBuf, &destLen, lzh_rle_buffer, LZH_RLE_COMPRESSED_SIZE);
EXPECT_EQ(err, 0);
EXPECT_EQ(destLen, (size_t)EXPECTED_ORIGSIZE);
auto crc = crc32_data(outBuf, EXPECTED_ORIGSIZE);
free(outBuf);
EXPECT_EQ(crc, EXPECTED_CRC32);
}