diff options
Diffstat (limited to 'programs/fuzzer.c')
| -rwxr-xr-x | programs/fuzzer.c | 60 |
1 files changed, 55 insertions, 5 deletions
diff --git a/programs/fuzzer.c b/programs/fuzzer.c index 07935fa..b7721c8 100755 --- a/programs/fuzzer.c +++ b/programs/fuzzer.c @@ -97,7 +97,7 @@ static U32 g_time = 0; /********************************************************* -Fuzzer functions + Fuzzer functions *********************************************************/ static U32 FUZ_GetMilliStart(void) { @@ -108,7 +108,6 @@ static U32 FUZ_GetMilliStart(void) return nCount; } - static U32 FUZ_GetMilliSpan(U32 nTimeStart) { U32 nCurrent = FUZ_GetMilliStart(); @@ -118,7 +117,6 @@ static U32 FUZ_GetMilliSpan(U32 nTimeStart) return nSpan; } - static U32 FUZ_rotl32(U32 u32, U32 nbBits) { return ((u32 << nbBits) | (u32 >> (32 - nbBits))); @@ -685,7 +683,7 @@ static void FUZ_unitTests(void) // 32-bits address space overflow test FUZ_AddressOverflow(); - // LZ4 steraming tests + // LZ4 streaming tests { LZ4_stream_t* statePtr; LZ4_stream_t streamingState; @@ -916,9 +914,61 @@ static void FUZ_unitTests(void) } } + // long stream test ; Warning : very long test ! + if (1) + { + XXH64_state_t crcOrigState; + XXH64_state_t crcNewState; + const U64 totalTestSize = 6ULL << 30; + U64 totalTestDone = 0; + size_t oldStart = 0; + size_t oldSize = 0; + U32 segNb = 1; + + DISPLAY("Long HC streaming test (%u MB)\n", (U32)(totalTestSize >> 20)); + LZ4_resetStreamHC(&sHC, 0); + + XXH64_reset(&crcOrigState, 0); + XXH64_reset(&crcNewState, 0); + + while (totalTestDone < totalTestSize) + { + size_t testSize = (FUZ_rand(&randState) & 65535) + 1; + size_t testStart = FUZ_rand(&randState) & 65535; + + FUZ_displayUpdate((U32)(totalTestDone >> 20)); + + XXH64_update(&crcOrigState, testInput + testStart, testSize); + crcOrig = XXH64_digest(&crcOrigState); + + result = LZ4_compressHC_limitedOutput_continue(&sHC, testInput + testStart, testCompressed, (int)testSize, LZ4_compressBound((int)testSize)); + FUZ_CHECKTEST(result==0, "LZ4_compressHC_limitedOutput_continue() dictionary compression failed : result = %i", result); + + result = LZ4_decompress_safe_usingDict(testCompressed, testVerify, result, (int)testSize, testInput + oldStart, (int)oldSize); + FUZ_CHECKTEST(result!=(int)testSize, "LZ4_decompress_safe_usingDict() dictionary decompression part %i failed", segNb); + + XXH64_update(&crcNewState, testVerify, testSize); + crcNew = XXH64_digest(&crcNewState); + if (crcOrig!=crcNew) + { + size_t c=0; + while (testVerify[c] == testInput[testStart+c]) c++; + DISPLAY("Bad decompression at %u / %u \n", (U32)c, (U32)testSize); + } + FUZ_CHECKTEST(crcOrig!=crcNew, "LZ4_decompress_safe_usingDict() part %i corruption", segNb); + + oldStart = testStart; + oldSize = testSize; + totalTestDone += testSize; + + segNb ++; + } + + DISPLAY("\r"); + } } - printf("All unit tests completed succesfully \n"); + printf("All unit tests completed successfully \n"); return; _output_error: exit(1); |