ddidderr/zstd-rs
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Add cSize regression test to fuzzer.c

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senhuang42
2020-10-07 13:56:25 -04:00
parent c87d2e5866
commit b8bfc4e63d
4 changed files with 44 additions and 1 deletions
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tests/fuzzer.c
+38
View File
@@ -780,6 +780,44 @@ static int basicUnitTests(U32 const seed, double compressibility)
}
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3i : testing ldm no regressions in size for opt parser : ", testNb++);
{
size_t cSizeLdm;
size_t cSizeNoLdm;
ZSTD_CCtx* const cctx = ZSTD_createCCtx();
RDG_genBuffer(CNBuffer, CNBuffSize, 0.5, 0.5, seed);
/* Enable checksum to verify round trip. */
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1));
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 1));
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19));
/* Round trip once with ldm. */
cSizeLdm = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize);
CHECK_Z(cSizeLdm);
CHECK_Z(ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSizeLdm));
ZSTD_CCtx_reset(cctx, ZSTD_reset_session_and_parameters);
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1));
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_enableLongDistanceMatching, 0));
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, 19));
/* Round trip once without ldm. */
cSizeNoLdm = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBuffSize);
CHECK_Z(cSizeNoLdm);
CHECK_Z(ZSTD_decompress(decodedBuffer, CNBuffSize, compressedBuffer, cSizeNoLdm));
if (cSizeLdm > cSizeNoLdm) {
DISPLAY("Using long mode should not cause regressions for btopt+\n");
testResult = 1;
goto _output_error;
}
ZSTD_freeCCtx(cctx);
}
DISPLAYLEVEL(3, "OK \n");
/* Note: this test takes 0.5 seconds to run */
DISPLAYLEVEL(3, "test%3i : testing refPrefx vs refPrefx + ldm (size comparison) : ", testNb++);
{
tests/playTests.sh
+1 -1
View File
@@ -1217,7 +1217,7 @@ then
println "\n===> zstdmt round-trip tests "
roundTripTest -g4M "1 -T0"
roundTripTest -g8M "3 -T2"
roundTripTest -g8M "3 -T0 --long"
roundTripTest -g8M "19 -T0 --long"
roundTripTest -g8000K "2 --threads=2"
fileRoundTripTest -g4M "19 -T2 -B1M"