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fix test

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a margin of 4 is insufficient to guarantee compression success.
This commit is contained in:
Yann Collet
2024-10-17 09:37:23 -07:00
parent 6326775166
commit 61d08b0e42
1 changed files with 5 additions and 4 deletions
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tests/zstreamtest.c
+5 -4
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@@ -758,7 +758,7 @@ static int basicUnitTests(U32 seed, double compressibility, int bigTests)
}
streaming2KSize = ZSTD_sizeof_DCtx(dctx);
CHECK_Z(streaming2KSize);
CHECK_Z(ZSTD_DCtx_reset(dctx, ZSTD_reset_session_and_parameters));
inBuff.pos = 0;
outBuff.pos = 0;
@@ -769,7 +769,7 @@ static int basicUnitTests(U32 seed, double compressibility, int bigTests)
}
streamingSize = ZSTD_sizeof_DCtx(dctx);
CHECK_Z(streamingSize);
CHECK_Z(ZSTD_DCtx_setParameter(dctx, ZSTD_d_maxBlockSize, 1024));
inBuff.pos = 0;
outBuff.pos = 0;
@@ -884,7 +884,8 @@ static int basicUnitTests(U32 seed, double compressibility, int bigTests)
DISPLAYLEVEL(3, "test%3i : ZSTD_compress2() uses stable input and output : ", testNb++);
CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, compressedBufferSize, CNBuffer, CNBufferSize));
CHECK(!(cSize < ZSTD_compressBound(CNBufferSize)), "cSize too large for test");
CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, cSize + 4, CNBuffer, CNBufferSize));
/* check that compression fits with just a 8-bytes margin */
CHECK_Z(cSize = ZSTD_compress2(cctx, compressedBuffer, cSize+8, CNBuffer, CNBufferSize));
CHECK_Z(cctxSize1 = ZSTD_sizeof_CCtx(cctx));
/* @cctxSize2 : sizeof_CCtx when doing full streaming (no stable in/out) */
{ ZSTD_CCtx* const cctx2 = ZSTD_createCCtx();
@@ -2503,7 +2504,7 @@ static int basicUnitTests(U32 seed, double compressibility, int bigTests)
// Validate
CHECK(outBuf.pos != srcSize, "decompressed size must match");
CHECK(memcmp(src, val, srcSize) != 0, "decompressed data must match");
// Cleanup
free(src); free(dst); free(val);
ZSTD_freeCCtx(cctx);