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added ZSTD_compressStream2() + ZSTD_c_stableInBuffer test

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Yann Collet 2022-01-26 13:33:04 -08:00
parent cbff372d10
commit dda4c10f07
1 changed files with 30 additions and 0 deletions
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30
tests/zstreamtest.c
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@ -902,6 +902,36 @@ static int basicUnitTests(U32 seed, double compressibility)
} }
DISPLAYLEVEL(3, "OK \n");
/* stableSrc + streaming */
DISPLAYLEVEL(3, "test%3i : ZSTD_c_stableInBuffer compatibility with compressStream2, using different end directives : ", testNb++);
CHECK_Z( ZSTD_initCStream(cctx, 1) );
CHECK_Z( ZSTD_CCtx_setParameter(cctx, ZSTD_c_stableInBuffer, 1) );
{ ZSTD_inBuffer inBuf;
ZSTD_outBuffer outBuf;
const size_t nonZeroStartPos = 18;
const size_t inputSize = 500;
inBuf.src = CNBuffer;
inBuf.size = 100;
inBuf.pos = nonZeroStartPos;
outBuf.dst = (char*)(compressedBuffer)+cSize;
outBuf.size = ZSTD_compressBound(inputSize);
outBuf.pos = 0;
CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_continue) );
inBuf.size = 200;
CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_continue) );
CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_flush) );
inBuf.size = nonZeroStartPos + inputSize;
CHECK_Z( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_continue) );
CHECK( ZSTD_compressStream2(cctx, &outBuf, &inBuf, ZSTD_e_end) != 0, "compression should be successful and fully flushed");
{ const void* const realSrcStart = (const char*)inBuf.src + nonZeroStartPos;
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(realSrcStart, 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++);
{ size_t const cctxSize = ZSTD_sizeof_CCtx(cctx);
DISPLAYLEVEL(4, "cctxSize1=%zu; cctxSize=%zu; cctxSize2=%zu : ", cctxSize1, cctxSize, cctxSize2);