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zstreamtest : add test which detects when ZSTD_initCStream() inflate data 

as in #942, when ZSTD_initCStream() believes data is empty, instead of unknown.
dev
Yann Collet 2017-12-07 03:06:01 -05:00
parent 3aa2b27a89
commit 21f7672d43
1 changed files with 17 additions and 2 deletions
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19
tests/zstreamtest.c
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@ -245,13 +245,28 @@ static int basicUnitTests(U32 seed, double compressibility)
}
dictID = ZDICT_getDictID(dictionary.start, dictionary.filled);
/* Basic compression test */
DISPLAYLEVEL(3, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
CHECK_Z( ZSTD_initCStream(zc, 1 /* cLevel */) );
outBuff.dst = (char*)(compressedBuffer);
outBuff.size = compressedBufferSize;
outBuff.pos = 0;
inBuff.src = CNBuffer;
inBuff.size = CNBufferSize;
inBuff.pos = 0;
CHECK_Z( ZSTD_compressStream(zc, &outBuff, &inBuff) );
if (inBuff.pos != inBuff.size) goto _output_error; /* entire input should be consumed */
{ size_t const r = ZSTD_endStream(zc, &outBuff);
if (r != 0) goto _output_error; } /* error, or some data not flushed */
DISPLAYLEVEL(3, "OK (%u bytes)\n", (U32)outBuff.pos);
/* generate skippable frame */
MEM_writeLE32(compressedBuffer, ZSTD_MAGIC_SKIPPABLE_START);
MEM_writeLE32(((char*)compressedBuffer)+4, (U32)skippableFrameSize);
cSize = skippableFrameSize + 8;
/* Basic compression test */
DISPLAYLEVEL(3, "test%3i : compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
/* Basic compression test using dict */
DISPLAYLEVEL(3, "test%3i : skipframe + compress %u bytes : ", testNb++, COMPRESSIBLE_NOISE_LENGTH);
CHECK_Z( ZSTD_initCStream_usingDict(zc, CNBuffer, dictSize, 1 /* cLevel */) );
outBuff.dst = (char*)(compressedBuffer)+cSize;
assert(compressedBufferSize > cSize);