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/*********************************************************************
Blosc - Blocked Shuffling and Compression Library
Unit tests for BLOSC_COMPRESSOR environment variable in Blosc.
Copyright (c) 2021 Blosc Development Team <blosc@blosc.org>
https://blosc.org
License: BSD 3-Clause (see LICENSE.txt)
See LICENSE.txt for details about copyright and rights to use.
**********************************************************************/
#include "test_common.h"
int tests_run = 0;
/* Global vars */
void *src, *srccpy, *dest, *dest2;
int nbytes, cbytes;
int clevel = 1;
int doshuffle = 1;
size_t typesize = 8;
int32_t size = 8 * 1000 * 1000; /* must be divisible by typesize */
/* Check compressor */
static char *test_compressor(void) {
const char* compressor;
/* Before any blosc1_compress() the compressor must be blosclz */
compressor = blosc1_get_compressor();
mu_assert("ERROR: get_compressor (compress, before) incorrect",
strcmp(compressor, "blosclz") == 0);
/* Activate the BLOSC_COMPRESSOR variable */
setenv("BLOSC_COMPRESSOR", "lz4", 0);
/* Get a compressed buffer */
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not correct", cbytes < size);
compressor = blosc1_get_compressor();
/* Activate the BLOSC_COMPRESSOR variable */
mu_assert("ERROR: get_compressor (compress, after) incorrect",
strcmp(compressor, "lz4") == 0);
/* Reset envvar */
unsetenv("BLOSC_COMPRESSOR");
return 0;
}
/* Check compressing + decompressing */
static char *test_compress_decompress(void) {
const char* compressor;
/* Activate the BLOSC_COMPRESSOR variable */
setenv("BLOSC_COMPRESSOR", "lz4", 0);
compressor = blosc1_get_compressor();
/* Activate the BLOSC_COMPRESSOR variable */
mu_assert("ERROR: get_compressor (compress, after) incorrect",
strcmp(compressor, "lz4") == 0);
/* Get a compressed buffer */
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not correct", cbytes < size);
compressor = blosc1_get_compressor();
mu_assert("ERROR: get_compressor incorrect",
strcmp(compressor, "lz4") == 0);
/* Decompress the buffer */
nbytes = blosc1_decompress(dest, dest2, size);
mu_assert("ERROR: nbytes incorrect(1)", nbytes == size);
compressor = blosc1_get_compressor();
mu_assert("ERROR: get_compressor incorrect",
strcmp(compressor, "lz4") == 0);
/* Reset envvar */
unsetenv("BLOSC_COMPRESSOR");
return 0;
}
/* Check compression level */
static char *test_clevel(void) {
int cbytes2;
/* Get a compressed buffer */
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not correct", cbytes < size);
/* Activate the BLOSC_CLEVEL variable */
setenv("BLOSC_CLEVEL", "9", 0);
cbytes2 = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: BLOSC_CLEVEL does not work correctly", cbytes2 != cbytes);
/* Reset envvar */
unsetenv("BLOSC_CLEVEL");
return 0;
}
/* Check noshuffle */
static char *test_noshuffle(void) {
int cbytes2;
/* Get a compressed buffer */
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not correct", cbytes < size);
/* Activate the BLOSC_SHUFFLE variable */
setenv("BLOSC_SHUFFLE", "NOSHUFFLE", 0);
cbytes2 = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: BLOSC_SHUFFLE=NOSHUFFLE does not work correctly",
cbytes2 > cbytes);
/* Reset env var */
unsetenv("BLOSC_SHUFFLE");
return 0;
}
/* Check regular shuffle */
static char *test_shuffle(void) {
int cbytes2;
/* Get a compressed buffer */
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not 0", cbytes < size);
/* Activate the BLOSC_SHUFFLE variable */
setenv("BLOSC_SHUFFLE", "SHUFFLE", 0);
cbytes2 = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: BLOSC_SHUFFLE=SHUFFLE does not work correctly",
cbytes2 == cbytes);
/* Reset env var */
unsetenv("BLOSC_SHUFFLE");
return 0;
}
/* Check bitshuffle */
static char *test_bitshuffle(void) {
int cbytes2;
/* Get a compressed buffer */
if (blosc1_set_compressor("zlib") == -1) {
/* If zlib is not here, just skip the test */
return 0;
};
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not 0", cbytes < size);
/* Activate the BLOSC_BITSHUFFLE variable */
setenv("BLOSC_SHUFFLE", "BITSHUFFLE", 0);
cbytes2 = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: BLOSC_SHUFFLE=BITSHUFFLE does not work correctly",
cbytes2 < cbytes);
/* Reset env var */
unsetenv("BLOSC_SHUFFLE");
return 0;
}
/* Check delta conding */
static char *test_delta(void) {
int cbytes2;
/* Get a compressed buffer */
blosc1_set_compressor("blosclz"); /* avoid lz4 here for now (see #168) */
blosc2_set_delta(0);
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not 0", cbytes < size);
/* Activate the BLOSC_DELTA variable */
setenv("BLOSC_DELTA", "1", 0);
cbytes2 = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: BLOSC_DELTA=1 does not work correctly",
cbytes2 < 3 * cbytes / 4);
/* Reset env var */
unsetenv("BLOSC_DELTA");
return 0;
}
/* Check typesize */
static char *test_typesize(void) {
int cbytes2;
/* Get a compressed buffer */
cbytes = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: cbytes is not correct", cbytes < size);
/* Activate the BLOSC_TYPESIZE variable */
setenv("BLOSC_TYPESIZE", "9", 0);
cbytes2 = blosc1_compress(clevel, doshuffle, typesize, size, src,
dest, size + BLOSC2_MAX_OVERHEAD);
mu_assert("ERROR: BLOSC_TYPESIZE does not work correctly", cbytes2 > cbytes);
/* Reset envvar */
unsetenv("BLOSC_TYPESIZE");
return 0;
}
/* Check small blocksize */
static char *test_small_blocksize(void) {
blosc2_cparams cparams = BLOSC2_CPARAMS_DEFAULTS;
cparams.blocksize = 2;
cparams.typesize = 1;
blosc2_context *cctx = blosc2_create_cctx(cparams);
blosc2_dparams dparams = BLOSC2_DPARAMS_DEFAULTS;
blosc2_context *dctx = blosc2_create_dctx(dparams);
size = 8;
/* Get a compressed buffer */
cbytes = blosc2_compress_ctx(cctx, src, size, dest, size + BLOSC2_MAX_OVERHEAD);
nbytes = blosc2_decompress_ctx(dctx, dest, size + BLOSC2_MAX_OVERHEAD, src, size);
mu_assert("ERROR: nbytes is not correct", nbytes == size);
blosc2_free_ctx(cctx);
blosc2_free_ctx(dctx);
return 0;
}
/* Check small buffer */
static char *test_small_buffer(void) {
blosc2_cparams cparams = BLOSC2_CPARAMS_DEFAULTS;
cparams.typesize = 1;
blosc2_context *cctx = blosc2_create_cctx(cparams);
blosc2_dparams dparams = BLOSC2_DPARAMS_DEFAULTS;
blosc2_context *dctx = blosc2_create_dctx(dparams);
size = 2;
uint8_t *src2 = calloc(size, 1);
for (int i = 0; i < size; i++) {
src2[i] = (uint8_t)i;
}
/* Using contexts */
cbytes = blosc2_compress_ctx(cctx, src2, size, dest, size + BLOSC2_MAX_OVERHEAD);
nbytes = blosc2_decompress_ctx(dctx, dest, size + BLOSC2_MAX_OVERHEAD, src, size);
mu_assert("ERROR: nbytes is not correct", nbytes == size);
/* Not using contexts */
cbytes = blosc2_compress(9, 1, cparams.typesize, src2, size, dest, size + BLOSC2_MAX_OVERHEAD);
nbytes = blosc2_decompress(dest, size + BLOSC2_MAX_OVERHEAD, src, size);
mu_assert("ERROR: nbytes is not correct", nbytes == size);
/* Using Blosc1 interface */
cbytes = blosc1_compress(9, 1, cparams.typesize, size, src2, dest, size + BLOSC2_MAX_OVERHEAD);
nbytes = blosc1_decompress(dest, src, size);
mu_assert("ERROR: nbytes is not correct", nbytes == size);
free(src2);
blosc2_free_ctx(cctx);
blosc2_free_ctx(dctx);
return 0;
}
static char *all_tests(void) {
mu_run_test(test_compressor);
mu_run_test(test_compress_decompress);
mu_run_test(test_clevel);
mu_run_test(test_noshuffle);
mu_run_test(test_shuffle);
mu_run_test(test_bitshuffle);
mu_run_test(test_delta);
mu_run_test(test_typesize);
mu_run_test(test_small_blocksize);
mu_run_test(test_small_buffer);
return 0;
}
#define BUFFER_ALIGN_SIZE 32
int main(void) {
int64_t *_src;
char *result;
size_t i;
blosc2_init();
blosc1_set_compressor("blosclz");
/* Initialize buffers */
src = blosc_test_malloc(BUFFER_ALIGN_SIZE, size);
srccpy = blosc_test_malloc(BUFFER_ALIGN_SIZE, size);
dest = blosc_test_malloc(BUFFER_ALIGN_SIZE, size + BLOSC2_MAX_OVERHEAD);
dest2 = blosc_test_malloc(BUFFER_ALIGN_SIZE, size);
_src = (int64_t *)src;
for (i=0; i < (size / sizeof(int64_t)); i++) {
_src[i] = (int64_t)i;
}
memcpy(srccpy, src, size);
/* Run all the suite */
result = all_tests();
if (result != 0) {
printf(" (%s)\n", result);
}
else {
printf(" ALL TESTS PASSED");
}
printf("\tTests run: %d\n", tests_run);
blosc_test_free(src);
blosc_test_free(srccpy);
blosc_test_free(dest);
blosc_test_free(dest2);
blosc2_destroy();
return result != 0;
}
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