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fix extended case combining stableInBuffer with continue() and flush() modes

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This commit is contained in:
Yann Collet
2022-01-26 10:31:25 -08:00
parent 270f9bf005
commit c1668a00d2
4 changed files with 65 additions and 29 deletions
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tests/fuzzer.c
+1 -1
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@@ -1206,7 +1206,7 @@ static int basicUnitTests(U32 const seed, double compressibility)
DISPLAYLEVEL(3, "test%3i : compress a NULL input with each level : ", testNb++);
{ int level = -1;
ZSTD_CCtx* cctx = ZSTD_createCCtx();
ZSTD_CCtx* const cctx = ZSTD_createCCtx();
if (!cctx) goto _output_error;
for (level = -1; level <= ZSTD_maxCLevel(); ++level) {
CHECK_Z( ZSTD_compress(compressedBuffer, compressedBufferSize, NULL, 0, level) );
tests/zstreamtest.c
+9 -3
View File
@@ -878,20 +878,26 @@ static int basicUnitTests(U32 seed, double compressibility)
CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1) );
{ ZSTD_inBuffer inBuf;
ZSTD_outBuffer outBuf;
const size_t inputSize = 500;
inBuf.src = CNBuffer;
inBuf.size = 100;
inBuf.pos = 0;
outBuf.dst = (char*)(compressedBuffer)+cSize;
outBuf.size = ZSTD_compressBound(500);
outBuf.size = ZSTD_compressBound(inputSize);
outBuf.pos = 0;
CHECK_Z( ZSTD_compressStream(cctx, &outBuf, &inBuf) );
inBuf.size = 200;
CHECK_Z( ZSTD_compressStream(cctx, &outBuf, &inBuf) );
CHECK_Z( ZSTD_flushStream(cctx, &outBuf) );
inBuf.size = 300;
inBuf.size = inputSize;
CHECK_Z( ZSTD_compressStream(cctx, &outBuf, &inBuf) );
CHECK(ZSTD_endStream(cctx, &outBuf) != 0, "compression should be successful and fully flushed");
}
{ void* const verifBuf = (char*)outBuf.dst + outBuf.pos;
const size_t decSize = ZSTD_decompress(verifBuf, inputSize, outBuf.dst, outBuf.pos);
CHECK_Z(decSize);
CHECK(decSize != inputSize, "regenerated %zu bytes, instead of %zu", decSize, inputSize);
CHECK(memcmp(inBuf.src, verifBuf, inputSize) != 0, "regenerated data different from original");
} }
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3i : ZSTD_compressStream2() with ZSTD_c_stableInBuffer: context size : ", testNb++);