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-rw-r--r--tests/fuzzer.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/tests/fuzzer.c b/tests/fuzzer.c
index c134fe3..98b3d9f 100644
--- a/tests/fuzzer.c
+++ b/tests/fuzzer.c
@@ -43,6 +43,7 @@
#include <stdio.h> /* fgets, sscanf */
#include <string.h> /* strcmp */
#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
+#define LZ4_STATIC_LINKING_ONLY
#define LZ4_HC_STATIC_LINKING_ONLY
#include "lz4hc.h"
#define XXH_STATIC_LINKING_ONLY
@@ -402,6 +403,11 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
ret = LZ4_compress_fast_extState(stateLZ4, block, compressedBuffer, blockSize, (int)compressedBufferSize, 8);
FUZ_CHECKTEST(ret==0, "LZ4_compress_fast_extState() failed");
+ /* Test compression using fast reset external state*/
+ FUZ_DISPLAYTEST;
+ ret = LZ4_compress_fast_extState_fastReset(stateLZ4, block, compressedBuffer, blockSize, (int)compressedBufferSize, 8);
+ FUZ_CHECKTEST(ret==0, "LZ4_compress_fast_extState_fastReset() failed");
+
/* Test compression */
FUZ_DISPLAYTEST;
ret = LZ4_compress_default(block, compressedBuffer, blockSize, (int)compressedBufferSize);
@@ -626,6 +632,78 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
FUZ_CHECKTEST(decodedBuffer[blockSize-missingBytes], "LZ4_decompress_safe_usingDict overrun specified output buffer size (-%u byte) (blockSize=%i)", missingBytes, blockSize);
} }
+ /* Compress using external dictionary stream */
+ FUZ_DISPLAYTEST;
+ {
+ LZ4_stream_t LZ4_stream;
+
+ LZ4_loadDict(&LZ4dict, dict, dictSize);
+
+ LZ4_resetStream(&LZ4_stream);
+ LZ4_attach_dictionary(&LZ4_stream, &LZ4dict);
+ blockContinueCompressedSize = LZ4_compress_fast_continue(&LZ4_stream, block, compressedBuffer, blockSize, (int)compressedBufferSize, 1);
+ FUZ_CHECKTEST(blockContinueCompressedSize==0, "LZ4_compress_fast_continue using extDictCtx failed");
+
+ FUZ_DISPLAYTEST;
+ LZ4_resetStream(&LZ4_stream);
+ LZ4_attach_dictionary(&LZ4_stream, &LZ4dict);
+ ret = LZ4_compress_fast_continue(&LZ4_stream, block, compressedBuffer, blockSize, blockContinueCompressedSize-1, 1);
+ FUZ_CHECKTEST(ret>0, "LZ4_compress_fast_continue using extDictCtx should fail : one missing byte for output buffer : %i written, %i buffer", ret, blockContinueCompressedSize);
+
+ FUZ_DISPLAYTEST;
+ LZ4_resetStream(&LZ4_stream);
+ LZ4_attach_dictionary(&LZ4_stream, &LZ4dict);
+ ret = LZ4_compress_fast_continue(&LZ4_stream, block, compressedBuffer, blockSize, blockContinueCompressedSize, 1);
+ FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_compress_limitedOutput_compressed size is different (%i != %i)", ret, blockContinueCompressedSize);
+ FUZ_CHECKTEST(ret<=0, "LZ4_compress_fast_continue using extDictCtx should work : enough size available within output buffer");
+
+ FUZ_DISPLAYTEST;
+ LZ4_resetStream_fast(&LZ4_stream);
+ LZ4_attach_dictionary(&LZ4_stream, &LZ4dict);
+ ret = LZ4_compress_fast_continue(&LZ4_stream, block, compressedBuffer, blockSize, blockContinueCompressedSize, 1);
+ FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_compress_limitedOutput_compressed size is different (%i != %i)", ret, blockContinueCompressedSize);
+ FUZ_CHECKTEST(ret<=0, "LZ4_compress_fast_continue using extDictCtx with re-used context should work : enough size available within output buffer");
+ }
+
+ /* Decompress with dictionary as external */
+ FUZ_DISPLAYTEST;
+ decodedBuffer[blockSize] = 0;
+ ret = LZ4_decompress_fast_usingDict(compressedBuffer, decodedBuffer, blockSize, dict, dictSize);
+ FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_decompress_fast_usingDict did not read all compressed block input");
+ FUZ_CHECKTEST(decodedBuffer[blockSize], "LZ4_decompress_fast_usingDict overrun specified output buffer size");
+ crcCheck = XXH32(decodedBuffer, blockSize, 0);
+ if (crcCheck!=crcOrig) FUZ_findDiff(block, decodedBuffer);
+ FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_fast_usingDict corrupted decoded data (dict %i)", dictSize);
+
+ FUZ_DISPLAYTEST;
+ decodedBuffer[blockSize] = 0;
+ ret = LZ4_decompress_safe_usingDict(compressedBuffer, decodedBuffer, blockContinueCompressedSize, blockSize, dict, dictSize);
+ FUZ_CHECKTEST(ret!=blockSize, "LZ4_decompress_safe_usingDict did not regenerate original data");
+ FUZ_CHECKTEST(decodedBuffer[blockSize], "LZ4_decompress_safe_usingDict overrun specified output buffer size");
+ crcCheck = XXH32(decodedBuffer, blockSize, 0);
+ FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_safe_usingDict corrupted decoded data");
+
+ FUZ_DISPLAYTEST;
+ decodedBuffer[blockSize-1] = 0;
+ ret = LZ4_decompress_fast_usingDict(compressedBuffer, decodedBuffer, blockSize-1, dict, dictSize);
+ FUZ_CHECKTEST(ret>=0, "LZ4_decompress_fast_usingDict should have failed : wrong original size (-1 byte)");
+ FUZ_CHECKTEST(decodedBuffer[blockSize-1], "LZ4_decompress_fast_usingDict overrun specified output buffer size");
+
+ FUZ_DISPLAYTEST;
+ decodedBuffer[blockSize-1] = 0;
+ ret = LZ4_decompress_safe_usingDict(compressedBuffer, decodedBuffer, blockContinueCompressedSize, blockSize-1, dict, dictSize);
+ FUZ_CHECKTEST(ret>=0, "LZ4_decompress_safe_usingDict should have failed : not enough output size (-1 byte)");
+ FUZ_CHECKTEST(decodedBuffer[blockSize-1], "LZ4_decompress_safe_usingDict overrun specified output buffer size");
+
+ FUZ_DISPLAYTEST;
+ { U32 const missingBytes = (FUZ_rand(&randState) & 0xF) + 2;
+ if ((U32)blockSize > missingBytes) {
+ decodedBuffer[blockSize-missingBytes] = 0;
+ ret = LZ4_decompress_safe_usingDict(compressedBuffer, decodedBuffer, blockContinueCompressedSize, blockSize-missingBytes, dict, dictSize);
+ FUZ_CHECKTEST(ret>=0, "LZ4_decompress_safe_usingDict should have failed : output buffer too small (-%u byte)", missingBytes);
+ FUZ_CHECKTEST(decodedBuffer[blockSize-missingBytes], "LZ4_decompress_safe_usingDict overrun specified output buffer size (-%u byte) (blockSize=%i)", missingBytes, blockSize);
+ } }
+
/* Compress HC using External dictionary */
FUZ_DISPLAYTEST;
dict -= (FUZ_rand(&randState) & 7); /* even bigger separation */