lib/zstd
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added ZSTD_setDStreamParameter()

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This commit is contained in:
Yann Collet
2016-08-23 16:58:10 +02:00
parent 3071c3e303
commit 17e482efdd
5 changed files with 54 additions and 10 deletions
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23
tests/zstreamtest.c
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@ -212,6 +212,8 @@ static int basicUnitTests(U32 seed, double compressibility, ZSTD_customMem custo
/* Basic decompression test */
DISPLAYLEVEL(4, "test%3i : decompress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
ZSTD_initDStream_usingDict(zd, CNBuffer, 128 KB);
{ size_t const r = ZSTD_setDStreamParameter(zd, ZSTDdsp_maxWindowSize, 1000000000); /* large limit */
if (ZSTD_isError(r)) goto _output_error; }
{ size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
if (r != 0) goto _output_error; } /* should reach end of frame == 0; otherwise, some data left, or an error */
if (outBuff.pos != CNBufferSize) goto _output_error; /* should regenerate the same amount */
@ -267,6 +269,27 @@ static int basicUnitTests(U32 seed, double compressibility, ZSTD_customMem custo
} }
DISPLAYLEVEL(4, "OK \n");
DISPLAYLEVEL(4, "test%3i : wrong parameter for ZSTD_setDStreamParameter(): ", testNb++);
{ size_t const r = ZSTD_setDStreamParameter(zd, (ZSTD_DStreamParameter_e)999, 1); /* large limit */
if (!ZSTD_isError(r)) goto _output_error; }
DISPLAYLEVEL(4, "OK \n");
/* Memory restriction */
DISPLAYLEVEL(4, "test%3i : maxWindowSize < frame requirement : ", testNb++);
ZSTD_initDStream_usingDict(zd, CNBuffer, 128 KB);
{ size_t const r = ZSTD_setDStreamParameter(zd, ZSTDdsp_maxWindowSize, 1000); /* too small limit */
if (ZSTD_isError(r)) goto _output_error; }
inBuff.src = compressedBuffer;
inBuff.size = cSize;
inBuff.pos = 0;
outBuff.dst = decodedBuffer;
outBuff.size = CNBufferSize;
outBuff.pos = 0;
{ size_t const r = ZSTD_decompressStream(zd, &outBuff, &inBuff);
if (!ZSTD_isError(r)) goto _output_error; /* must fail : frame requires > 100 bytes */
DISPLAYLEVEL(4, "OK (%s)\n", ZSTD_getErrorName(r)); }
_end:
ZSTD_freeCStream(zc);
ZSTD_freeDStream(zd);