facebook/zstd
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

added test to generate lots of small sequences (3-bytes)

Browse Source
This commit is contained in:
Yann Collet 2016-03-07 20:01:45 +01:00
parent 1df2594bfe
commit 4ba85344e3
1 changed files with 52 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
programs/fuzzer.c
View File

@ -196,22 +196,6 @@ static int basicUnitTests(U32 seed, double compressibility)
if (result != (size_t)-ZSTD_error_srcSize_wrong) goto _output_error; if (result != (size_t)-ZSTD_error_srcSize_wrong) goto _output_error;
DISPLAYLEVEL(4, "OK \n"); DISPLAYLEVEL(4, "OK \n");
/* All zeroes test (#137 verif) */
#define ZEROESLENGTH 100
DISPLAYLEVEL(4, "test%3i : compress %u zeroes : ", testNb++, ZEROESLENGTH);
memset(CNBuffer, 0, ZEROESLENGTH);
result = ZSTD_compress(compressedBuffer, ZSTD_compressBound(ZEROESLENGTH), CNBuffer, ZEROESLENGTH, 1);
if (ZSTD_isError(result)) goto _output_error;
cSize = result;
DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/ZEROESLENGTH*100);
DISPLAYLEVEL(4, "test%3i : decompress %u zeroes : ", testNb++, ZEROESLENGTH);
result = ZSTD_decompress(decodedBuffer, ZEROESLENGTH, compressedBuffer, cSize);
if (ZSTD_isError(result)) goto _output_error;
if (result != ZEROESLENGTH) goto _output_error;
DISPLAYLEVEL(4, "OK \n");
/* Dictionary and Duplication tests */ /* Dictionary and Duplication tests */
{ {
ZSTD_CCtx* ctxOrig = ZSTD_createCCtx(); ZSTD_CCtx* ctxOrig = ZSTD_createCCtx();
@ -344,6 +328,58 @@ static int basicUnitTests(U32 seed, double compressibility)
DISPLAYLEVEL(4, "OK \n"); DISPLAYLEVEL(4, "OK \n");
} }
/* All zeroes test (#137 verif) */
#define ZEROESLENGTH 100
DISPLAYLEVEL(4, "test%3i : compress %u zeroes : ", testNb++, ZEROESLENGTH);
memset(CNBuffer, 0, ZEROESLENGTH);
result = ZSTD_compress(compressedBuffer, ZSTD_compressBound(ZEROESLENGTH), CNBuffer, ZEROESLENGTH, 1);
if (ZSTD_isError(result)) goto _output_error;
cSize = result;
DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/ZEROESLENGTH*100);
DISPLAYLEVEL(4, "test%3i : decompress %u zeroes : ", testNb++, ZEROESLENGTH);
result = ZSTD_decompress(decodedBuffer, ZEROESLENGTH, compressedBuffer, cSize);
if (ZSTD_isError(result)) goto _output_error;
if (result != ZEROESLENGTH) goto _output_error;
DISPLAYLEVEL(4, "OK \n");
/* nbSeq limit test */
{
#define _3BYTESTESTLENGTH 131000
#define NB3BYTESSEQLOG 9
#define NB3BYTESSEQ (1 << NB3BYTESSEQLOG)
#define NB3BYTESSEQMASK (NB3BYTESSEQ-1)
BYTE _3BytesSeqs[NB3BYTESSEQ][3];
U32 r = 1;
int i;
for (i=0; i < NB3BYTESSEQ; i++) {
_3BytesSeqs[i][0] = (BYTE)(FUZ_rand(&r) & 255);
_3BytesSeqs[i][1] = (BYTE)(FUZ_rand(&r) & 255);
_3BytesSeqs[i][2] = (BYTE)(FUZ_rand(&r) & 255);
}
for (i=0; i < _3BYTESTESTLENGTH; ){
U32 id = FUZ_rand(&r) & NB3BYTESSEQMASK;
((BYTE*)CNBuffer)[i+0] = _3BytesSeqs[id][0];
((BYTE*)CNBuffer)[i+1] = _3BytesSeqs[id][1];
((BYTE*)CNBuffer)[i+2] = _3BytesSeqs[id][2];
i += 3;
}
DISPLAYLEVEL(4, "test%3i : compress lots 3-bytes sequences : ", testNb++);
result = ZSTD_compress(compressedBuffer, ZSTD_compressBound(_3BYTESTESTLENGTH), CNBuffer, _3BYTESTESTLENGTH, 19);
if (ZSTD_isError(result)) goto _output_error;
cSize = result;
DISPLAYLEVEL(4, "OK (%u bytes : %.2f%%)\n", (U32)cSize, (double)cSize/_3BYTESTESTLENGTH*100);
DISPLAYLEVEL(4, "test%3i : decompress lots 3-bytes sequence : ", testNb++);
result = ZSTD_decompress(decodedBuffer, _3BYTESTESTLENGTH, compressedBuffer, cSize);
if (ZSTD_isError(result)) goto _output_error;
if (result != _3BYTESTESTLENGTH) goto _output_error;
DISPLAYLEVEL(4, "OK \n");
}
_end: _end:
free(CNBuffer); free(CNBuffer);
free(compressedBuffer); free(compressedBuffer);