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Add test case for short bistream

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This commit is contained in:
Ephraim Park 2019-06-27 17:27:29 -07:00
parent c7c1ba3a19
commit 01e8384000
1 changed files with 62 additions and 0 deletions
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62
tests/zstreamtest.c
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@ -1184,6 +1184,68 @@ static int basicUnitTests(U32 seed, double compressibility)
}
DISPLAYLEVEL(3, "OK \n");
/* Small Sequence Section bug */
DISPLAYLEVEL(3, "test%3i : decompress blocks with small sequences section : ", testNb++);
{ /* This test consists of 3 blocks. Each block has one sequence.
The sequence has literal length of 10, match length of 10 and offset of 10.
The sequence value and compression mode for the blocks are following:
The order of values are ll, ml, of.
- First block : (10, 7, 13) (rle, rle, rle)
- size of sequences section: 6 bytes (1 byte for nbSeq, 1 byte for encoding mode, 3 bytes for rle, 1 byte bitstream)
- Second block : (10, 7, 1) (repeat, repeat, rle)
- size of sequences section: 4 bytes (1 byte for nbSeq, 1 byte for encoding mode, 1 bytes for rle, 1 byte bitstream)
- Third block : (10, 7, 1) (repeat, repeat, repeat)
- size of sequences section: 3 bytes (1 byte for nbSeq, 1 byte for encoding mode, 1 byte bitstream) */
unsigned char compressed[] = {
0x28, 0xb5, 0x2f, 0xfd, 0x24, 0x3c, 0x35, 0x01, 0x00, 0xf0, 0x85, 0x08,
0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x4c, 0x6b, 0xa9, 0x8b,
0xbc, 0xc5, 0xb6, 0xd9, 0x7f, 0x4c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac,
0x69, 0x94, 0x89, 0x1c, 0x03, 0x44, 0x0a, 0x07, 0x00, 0xb4, 0x04, 0x80,
0x40, 0x0a, 0xa4
};
unsigned int compressedSize = 51;
unsigned char decompressed[] = {
0x85, 0x08, 0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x85, 0x08,
0xc2, 0xc4, 0x70, 0xcf, 0xd7, 0xc0, 0x96, 0x7e, 0x4c, 0x6b, 0xa9, 0x8b,
0xbc, 0xc5, 0xb6, 0xd9, 0x7f, 0x4c, 0x4c, 0x6b, 0xa9, 0x8b, 0xbc, 0xc5,
0xb6, 0xd9, 0x7f, 0x4c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, 0x69, 0x94,
0x89, 0x1c, 0xf1, 0x05, 0xa6, 0x54, 0xef, 0xac, 0x69, 0x94, 0x89, 0x1c
};
unsigned int decompressedSize = 60;
ZSTD_DStream* const zds = ZSTD_createDStream();
if (zds==NULL) goto _output_error;
CHECK_Z( ZSTD_initDStream(zds) );
inBuff.src = compressed;
inBuff.size = compressedSize;
inBuff.pos = 0;
outBuff.dst = decodedBuffer;
outBuff.size = CNBufferSize;
outBuff.pos = 0;
while (inBuff.pos < inBuff.size) {
CHECK_Z( ZSTD_decompressStream(zds, &outBuff, &inBuff) );
}
{ XXH64_state_t xxhStateIn, xxhStateOut;
U32 checkIn, checkOut;
XXH64_reset(&xxhStateIn, 0);
XXH64_reset(&xxhStateOut, 0);
XXH64_update(&xxhStateIn, decompressed, decompressedSize);
XXH64_update(&xxhStateOut, outBuff.dst, outBuff.pos);
checkIn = (U32)XXH64_digest(&xxhStateIn);
checkOut = (U32)XXH64_digest(&xxhStateOut);
CHECK(checkIn != checkOut, "Checksum does not match");
}
ZSTD_freeDStream(zds);
}
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3i : dictionary + uncompressible block + reusing tables checks offset table validity: ", testNb++);
{ ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(
dictionary.start, dictionary.filled,