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tests: fuzzer: Add test for LZ4_compressHC_destSize

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This commit is contained in:
remittor 2017-03-08 11:13:28 +03:00
parent f007153e3f
commit 66b26a389f
1 changed files with 38 additions and 2 deletions
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40
tests/fuzzer.c
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@ -32,6 +32,7 @@
# pragma warning(disable : 4310) /* disable: C4310: constant char value > 127 */
#endif
#define LZ4_DISABLE_DEPRECATE_WARNINGS
/*-************************************
* Dependencies
@ -348,6 +349,41 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
DISPLAYLEVEL(5, " \n");
}
/* Test compression HC destSize */
FUZ_DISPLAYTEST;
{ int srcSize = blockSize;
int const targetSize = srcSize * ((FUZ_rand(&randState) & 127)+1) >> 7;
char endCheck = FUZ_rand(&randState) & 255;
void * ctx = LZ4_createHC(block);
FUZ_CHECKTEST(ctx==NULL, "LZ4_createHC() allocation failed");
compressedBuffer[targetSize] = endCheck;
ret = LZ4_compressHC_destSize(ctx, block, compressedBuffer, &srcSize, targetSize, compressionLevel);
LZ4_freeHC(ctx);
FUZ_CHECKTEST(ret > targetSize, "LZ4_compressHC_destSize() result larger than dst buffer !");
FUZ_CHECKTEST(compressedBuffer[targetSize] != endCheck, "LZ4_compressHC_destSize() overwrite dst buffer !");
FUZ_CHECKTEST(srcSize > blockSize, "LZ4_compressHC_destSize() fed more than src buffer !");
DISPLAYLEVEL(5, "destSize : %7i/%7i; content%7i/%7i ", ret, targetSize, srcSize, blockSize);
if (targetSize>0) {
/* check correctness */
U32 const crcBase = XXH32(block, srcSize, 0);
char const canary = FUZ_rand(&randState) & 255;
FUZ_CHECKTEST((ret==0), "LZ4_compressHC_destSize() compression failed");
FUZ_DISPLAYTEST;
compressedSize = ret;
decodedBuffer[srcSize] = canary;
ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, srcSize);
FUZ_CHECKTEST(ret<0, "LZ4_decompress_safe() failed on data compressed by LZ4_compressHC_destSize");
FUZ_CHECKTEST(ret!=srcSize, "LZ4_decompress_safe() failed : did not fully decompressed data");
FUZ_CHECKTEST(decodedBuffer[srcSize] != canary, "LZ4_decompress_safe() overwrite dst buffer !");
{ U32 const crcDec = XXH32(decodedBuffer, srcSize, 0);
FUZ_CHECKTEST(crcDec!=crcBase, "LZ4_decompress_safe() corrupted decoded data"); }
DISPLAYLEVEL(5, " OK \n");
}
else
DISPLAYLEVEL(5, " \n");
}
/* Test compression HC */
FUZ_DISPLAYTEST;
ret = LZ4_compress_HC(block, compressedBuffer, blockSize, (int)compressedBufferSize, compressionLevel);
@ -688,7 +724,7 @@ static void FUZ_unitTests(int compressionLevel)
crcOrig = XXH64(testInput, testCompressedSize, 0);
LZ4_resetStream(&streamingState);
result = LZ4_compress_fast_continue(&streamingState, testInput, testCompressed, testCompressedSize, testCompressedSize-1, 1);
FUZ_CHECKTEST(result==0, "LZ4_compress_limitedOutput_continue() compression failed");
FUZ_CHECKTEST(result==0, "LZ4_compress_fast_continue() compression failed!");
result = LZ4_decompress_safe(testCompressed, testVerify, result, testCompressedSize);
FUZ_CHECKTEST(result!=(int)testCompressedSize, "LZ4_decompress_safe() decompression failed");
@ -718,7 +754,7 @@ static void FUZ_unitTests(int compressionLevel)
memcpy (ringBuffer + rNext, testInput + iNext, messageSize);
result = LZ4_compress_fast_continue(&streamingState, ringBuffer + rNext, testCompressed, messageSize, testCompressedSize-ringBufferSize, 1);
FUZ_CHECKTEST(result==0, "LZ4_compress_limitedOutput_continue() compression failed");
FUZ_CHECKTEST(result==0, "LZ4_compress_fast_continue() compression failed");
result = LZ4_decompress_safe_continue(&decodeState, testCompressed, testVerify + dNext, result, messageSize);
FUZ_CHECKTEST(result!=(int)messageSize, "ringBuffer : LZ4_decompress_safe() test failed");