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fixed RLE detection test

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This commit is contained in:
Yann Collet
2024-10-23 11:50:56 -07:00
parent 83a3402a92
commit f83ed087f6
2 changed files with 16 additions and 13 deletions
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tests/fuzzer.c
+11 -8
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@@ -3653,16 +3653,19 @@ static int basicUnitTests(U32 const seed, double compressibility)
ZSTD_freeDCtx(dctx);
}
/* long rle test */
/* rle detection test: must compress better blocks with a single identical byte repeated */
{ size_t sampleSize = 0;
size_t expectedCompressedSize = 39; /* block 1, 2: compressed, block 3: RLE, zstd 1.4.4 */
DISPLAYLEVEL(3, "test%3i : Long RLE test : ", testNb++);
memset((char*)CNBuffer+sampleSize, 'B', 256 KB - 1);
sampleSize += 256 KB - 1;
memset((char*)CNBuffer+sampleSize, 'A', 96 KB);
sampleSize += 96 KB;
size_t maxCompressedSize = 46; /* block 1, 2: compressed, block 3: RLE, zstd 1.4.4 */
DISPLAYLEVEL(3, "test%3i : RLE detection test : ", testNb++);
memset((char*)CNBuffer+sampleSize, 'B', 256 KB - 2);
sampleSize += 256 KB - 2;
memset((char*)CNBuffer+sampleSize, 'A', 100 KB);
sampleSize += 100 KB;
cSize = ZSTD_compress(compressedBuffer, ZSTD_compressBound(sampleSize), CNBuffer, sampleSize, 1);
if (ZSTD_isError(cSize) || cSize > expectedCompressedSize) goto _output_error;
if (ZSTD_isError(cSize) || cSize > maxCompressedSize) {
DISPLAYLEVEL(4, "error: cSize %u > %u expected ! \n", (unsigned)cSize, (unsigned)maxCompressedSize);
goto _output_error;
}
{ CHECK_NEWV(regenSize, ZSTD_decompress(decodedBuffer, sampleSize, compressedBuffer, cSize));
if (regenSize!=sampleSize) goto _output_error; }
DISPLAYLEVEL(3, "OK \n");