added low address fuzzer tests

2 files changed, 63 insertions, 53 deletions

diff --git a/tests/Makefile b/tests/Makefile
index ddc0d2e..34b8b24 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -35,7 +35,8 @@ PRGDIR  := ../programs
 TESTDIR := versionsTest
 PYTHON  ?= python3
 
-DEBUGFLAGS = -g -DLZ4_DEBUG=1
+DEBUGLEVEL?= 1
+DEBUGFLAGS = -g -DLZ4_DEBUG=$(DEBUGLEVEL)
 CFLAGS  ?= -O3 # can select custom optimization flags. For example : CFLAGS=-O2 make
 CFLAGS  += -Wall -Wextra -Wundef -Wcast-qual -Wcast-align -Wshadow \
            -Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes \
diff --git a/tests/fuzzer.c b/tests/fuzzer.c
index 9415e94..2b9b926 100644
--- a/tests/fuzzer.c
+++ b/tests/fuzzer.c
@@ -34,9 +34,13 @@
 
 #define LZ4_DISABLE_DEPRECATE_WARNINGS
 
+
 /*-************************************
 *  Dependencies
 **************************************/
+#ifdef __unix__   /* must be included before platform.h for MAP_ANONYMOUS */
+#  include <sys/mman.h>   /* mmap */
+#endif
 #include "platform.h"   /* _CRT_SECURE_NO_WARNINGS */
 #include "util.h"       /* U32 */
 #include <stdlib.h>
@@ -242,8 +246,6 @@ _overflowError:
 
 #ifdef __unix__   /* is expected to be triggered on linux+gcc */
 
-#include <sys/mman.h>   /* mmap */
-
 static void* FUZ_createLowAddr(size_t size)
 {
     void* const lowBuff = mmap((void*)(0x1000), size,
@@ -276,6 +278,7 @@ static void FUZ_freeLowAddr(void* buffer, size_t size)
 
 #endif
 
+
 /*! FUZ_findDiff() :
 *   find the first different byte between buff1 and buff2.
 *   presumes buff1 != buff2.
@@ -316,10 +319,18 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
 
 #   define FUZ_CHECKTEST(cond, ...) if (cond) { printf("Test %u : ", testNb); printf(__VA_ARGS__); \
                                                 printf(" (seed %u, cycle %u) \n", seed, cycleNb); goto _output_error; }
-#   define FUZ_DISPLAYTEST          { testNb++; g_displayLevel>=4 ? printf("%2u\b\b", testNb), fflush(stdout) : 0; }
+#   define FUZ_DISPLAYTEST(...) {                 \
+                testNb++;                         \
+                if (g_displayLevel>=4) {          \
+                    printf("\r%4u - %2u ", seed, testNb);  \
+                    printf(" " __VA_ARGS__);      \
+                    printf("   ");                \
+                    fflush(stdout);               \
+            }   }
 
 
     /* init */
+    DISPLAYLEVEL(2, " g_displayLevel = %u \n", g_displayLevel);
     if(!CNBuffer || !compressedBuffer || !decodedBuffer) {
         DISPLAY("Not enough memory to start fuzzer tests");
         goto _output_error;
@@ -362,7 +373,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }
 
         /* Test compression destSize */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_destSize()");
         {   int srcSize = blockSize;
             int const targetSize = srcSize * ((FUZ_rand(&randState) & 127)+1) >> 7;
             char endCheck = FUZ_rand(&randState) & 255;
@@ -377,7 +388,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
                 U32 const crcBase = XXH32(block, srcSize, 0);
                 char const canary = FUZ_rand(&randState) & 255;
                 FUZ_CHECKTEST((ret==0), "LZ4_compress_destSize() compression failed");
-                FUZ_DISPLAYTEST;
+                FUZ_DISPLAYTEST();
                 compressedSize = ret;
                 decodedBuffer[srcSize] = canary;
                 ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, srcSize);
@@ -393,7 +404,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }   }
 
         /* Test compression HC destSize */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_HC_destSize()");
         {   int srcSize = blockSize;
             int const targetSize = srcSize * ((FUZ_rand(&randState) & 127)+1) >> 7;
             char const endCheck = FUZ_rand(&randState) & 255;
@@ -407,14 +418,12 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
             FUZ_CHECKTEST(ret > targetSize, "LZ4_compress_HC_destSize() result larger than dst buffer !");
             FUZ_CHECKTEST(compressedBuffer[targetSize] != endCheck, "LZ4_compress_HC_destSize() overwrite dst buffer !");
             FUZ_CHECKTEST(srcSize > blockSize, "LZ4_compress_HC_destSize() fed more than src buffer !");
-            DISPLAYLEVEL(5, "LZ4_compress_HC_destSize(%i): destSize : %7i/%7i; content%7i/%7i ",
-                            compressionLevel, 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_compress_HC_destSize() compression failed");
-                FUZ_DISPLAYTEST;
+                FUZ_DISPLAYTEST();
                 compressedSize = ret;
                 decodedBuffer[srcSize] = canary;
                 ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, srcSize);
@@ -430,31 +439,31 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }   }
 
         /* Test compression HC */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_HC()");
         ret = LZ4_compress_HC(block, compressedBuffer, blockSize, (int)compressedBufferSize, compressionLevel);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_HC() failed");
         HCcompressedSize = ret;
 
         /* Test compression HC using external state */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_HC_extStateHC()");
         ret = LZ4_compress_HC_extStateHC(stateLZ4HC, block, compressedBuffer, blockSize, (int)compressedBufferSize, compressionLevel);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_HC_extStateHC() failed");
 
         /* Test compression using external state */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_fast_extState()");
         ret = LZ4_compress_fast_extState(stateLZ4, block, compressedBuffer, blockSize, (int)compressedBufferSize, 8);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_fast_extState() failed");
 
         /* Test compression */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_default()");
         ret = LZ4_compress_default(block, compressedBuffer, blockSize, (int)compressedBufferSize);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_default() failed");
         compressedSize = ret;
 
         /* Decompression tests */
 
-        /* Test decoding with output size being exactly what's necessary => must work */
-        FUZ_DISPLAYTEST;
+        /* Test decoding with output size exactly correct => must work */
+        FUZ_DISPLAYTEST("LZ4_decompress_fast() with exact output buffer");
         ret = LZ4_decompress_fast(compressedBuffer, decodedBuffer, blockSize);
         FUZ_CHECKTEST(ret<0, "LZ4_decompress_fast failed despite correct space");
         FUZ_CHECKTEST(ret!=compressedSize, "LZ4_decompress_fast failed : did not fully read compressed data");
@@ -462,19 +471,19 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_fast corrupted decoded data");
 
         /* Test decoding with one byte missing => must fail */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("LZ4_decompress_fast() with output buffer 1-byte too short");
         decodedBuffer[blockSize-1] = 0;
         ret = LZ4_decompress_fast(compressedBuffer, decodedBuffer, blockSize-1);
         FUZ_CHECKTEST(ret>=0, "LZ4_decompress_fast should have failed, due to Output Size being too small");
         FUZ_CHECKTEST(decodedBuffer[blockSize-1], "LZ4_decompress_fast overrun specified output buffer");
 
         /* Test decoding with one byte too much => must fail */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         ret = LZ4_decompress_fast(compressedBuffer, decodedBuffer, blockSize+1);
         FUZ_CHECKTEST(ret>=0, "LZ4_decompress_fast should have failed, due to Output Size being too large");
 
         /* Test decoding with output size exactly what's necessary => must work */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         decodedBuffer[blockSize] = 0;
         ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, blockSize);
         FUZ_CHECKTEST(ret<0, "LZ4_decompress_safe failed despite sufficient space");
@@ -484,7 +493,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_safe corrupted decoded data");
 
         // Test decoding with more than enough output size => must work
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         decodedBuffer[blockSize] = 0;
         decodedBuffer[blockSize+1] = 0;
         ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, blockSize+1);
@@ -496,14 +505,14 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_safe corrupted decoded data");
 
         // Test decoding with output size being one byte too short => must fail
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         decodedBuffer[blockSize-1] = 0;
         ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, blockSize-1);
         FUZ_CHECKTEST(ret>=0, "LZ4_decompress_safe should have failed, due to Output Size being one byte too short");
         FUZ_CHECKTEST(decodedBuffer[blockSize-1], "LZ4_decompress_safe overrun specified output buffer size");
 
         // Test decoding with output size being 10 bytes too short => must fail
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         if (blockSize>10) {
             decodedBuffer[blockSize-10] = 0;
             ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize, blockSize-10);
@@ -512,51 +521,51 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }
 
         // Test decoding with input size being one byte too short => must fail
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize-1, blockSize);
         FUZ_CHECKTEST(ret>=0, "LZ4_decompress_safe should have failed, due to input size being one byte too short (blockSize=%i, ret=%i, compressedSize=%i)", blockSize, ret, compressedSize);
 
         // Test decoding with input size being one byte too large => must fail
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         decodedBuffer[blockSize] = 0;
         ret = LZ4_decompress_safe(compressedBuffer, decodedBuffer, compressedSize+1, blockSize);
         FUZ_CHECKTEST(ret>=0, "LZ4_decompress_safe should have failed, due to input size being too large");
         FUZ_CHECKTEST(decodedBuffer[blockSize], "LZ4_decompress_safe overrun specified output buffer size");
 
         // Test partial decoding with target output size being max/2 => must work
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         ret = LZ4_decompress_safe_partial(compressedBuffer, decodedBuffer, compressedSize, blockSize/2, blockSize);
         FUZ_CHECKTEST(ret<0, "LZ4_decompress_safe_partial failed despite sufficient space");
 
         // Test partial decoding with target output size being just below max => must work
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         ret = LZ4_decompress_safe_partial(compressedBuffer, decodedBuffer, compressedSize, blockSize-3, blockSize);
         FUZ_CHECKTEST(ret<0, "LZ4_decompress_safe_partial failed despite sufficient space");
 
         /* Test Compression with limited output size */
 
         /* Test compression with output size being exactly what's necessary (should work) */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_default() with output buffer just the right size");
         ret = LZ4_compress_default(block, compressedBuffer, blockSize, compressedSize);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_default() failed despite sufficient space");
 
         /* Test compression with output size being exactly what's necessary and external state (should work) */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_fast_extState() with output buffer just the right size");
         ret = LZ4_compress_fast_extState(stateLZ4, block, compressedBuffer, blockSize, compressedSize, 1);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_fast_extState() failed despite sufficient space");
 
         /* Test HC compression with output size being exactly what's necessary (should work) */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_HC() with output buffer just the right size");
         ret = LZ4_compress_HC(block, compressedBuffer, blockSize, HCcompressedSize, compressionLevel);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_HC() failed despite sufficient space");
 
         /* Test HC compression with output size being exactly what's necessary (should work) */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_HC_extStateHC() with output buffer just the right size");
         ret = LZ4_compress_HC_extStateHC(stateLZ4HC, block, compressedBuffer, blockSize, HCcompressedSize, compressionLevel);
         FUZ_CHECKTEST(ret==0, "LZ4_compress_HC_extStateHC() failed despite sufficient space");
 
         /* Test compression with missing bytes into output buffer => must fail */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_default() with output buffer a bit too short");
         {   int missingBytes = (FUZ_rand(&randState) % 0x3F) + 1;
             if (missingBytes >= compressedSize) missingBytes = compressedSize-1;
             missingBytes += !missingBytes;   /* avoid special case missingBytes==0 */
@@ -567,7 +576,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }
 
         /* Test HC compression with missing bytes into output buffer => must fail */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_HC() with output buffer a bit too short");
         {   int missingBytes = (FUZ_rand(&randState) % 0x3F) + 1;
             if (missingBytes >= HCcompressedSize) missingBytes = HCcompressedSize-1;
             missingBytes += !missingBytes;   /* avoid special case missingBytes==0 */
@@ -583,7 +592,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         /*-******************/
 
         /* Compress using dictionary */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_fast_continue() with dictionary of size %i", dictSize);
         {   LZ4_stream_t LZ4_stream;
             LZ4_resetStream(&LZ4_stream);
             LZ4_compress_fast_continue (&LZ4_stream, dict, compressedBuffer, dictSize, (int)compressedBufferSize, 1);   /* Just to fill hash tables */
@@ -592,7 +601,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }
 
         /* Decompress with dictionary as prefix */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_decompress_fast_usingDict() with dictionary as prefix");
         memcpy(decodedBuffer, dict, dictSize);
         ret = LZ4_decompress_fast_usingDict(compressedBuffer, decodedBuffer+dictSize, blockSize, decodedBuffer, dictSize);
         FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_decompress_fast_usingDict did not read all compressed block input");
@@ -605,33 +614,33 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_fast_usingDict corrupted decoded data (dict %i)", dictSize);
 
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_decompress_safe_usingDict()");
         ret = LZ4_decompress_safe_usingDict(compressedBuffer, decodedBuffer+dictSize, blockContinueCompressedSize, blockSize, decodedBuffer, dictSize);
         FUZ_CHECKTEST(ret!=blockSize, "LZ4_decompress_safe_usingDict did not regenerate original data");
         crcCheck = XXH32(decodedBuffer+dictSize, blockSize, 0);
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_safe_usingDict corrupted decoded data");
 
         /* Compress using External dictionary */
-        FUZ_DISPLAYTEST;
-        dict -= (FUZ_rand(&randState) & 0xF) + 1;   /* Separation, so it is an ExtDict */
+        FUZ_DISPLAYTEST("test LZ4_compress_fast_continue(), with non-contiguous dictionary");
+        dict -= (FUZ_rand(&randState) & 0xF) + 1;   /* create space, so now dictionary is an ExtDict */
         if (dict < (char*)CNBuffer) dict = (char*)CNBuffer;
         LZ4_loadDict(&LZ4dict, dict, dictSize);
         blockContinueCompressedSize = LZ4_compress_fast_continue(&LZ4dict, block, compressedBuffer, blockSize, (int)compressedBufferSize, 1);
         FUZ_CHECKTEST(blockContinueCompressedSize==0, "LZ4_compress_fast_continue failed");
 
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_fast_continue() with dictionary but with an output buffer too short by one byte");
         LZ4_loadDict(&LZ4dict, dict, dictSize);
         ret = LZ4_compress_fast_continue(&LZ4dict, block, compressedBuffer, blockSize, blockContinueCompressedSize-1, 1);
         FUZ_CHECKTEST(ret>0, "LZ4_compress_fast_continue using ExtDict should fail : one missing byte for output buffer : %i written, %i buffer", ret, blockContinueCompressedSize);
 
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST("test LZ4_compress_fast_continue() with dictionary loaded with LZ4_loadDict()");
         LZ4_loadDict(&LZ4dict, dict, dictSize);
         ret = LZ4_compress_fast_continue(&LZ4dict, 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 should work : enough size available within output buffer");
 
         /* Decompress with dictionary as external */
-        FUZ_DISPLAYTEST;
+        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");
@@ -640,7 +649,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         if (crcCheck!=crcOrig) FUZ_findDiff(block, decodedBuffer);
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_fast_usingDict corrupted decoded data (dict %i)", dictSize);
 
-        FUZ_DISPLAYTEST;
+        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");
@@ -648,19 +657,19 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         crcCheck = XXH32(decodedBuffer, blockSize, 0);
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_safe_usingDict corrupted decoded data");
 
-        FUZ_DISPLAYTEST;
+        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;
+        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;
+        FUZ_DISPLAYTEST();
         {   U32 const missingBytes = (FUZ_rand(&randState) & 0xF) + 2;
             if ((U32)blockSize > missingBytes) {
                 decodedBuffer[blockSize-missingBytes] = 0;
@@ -670,7 +679,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         }   }
 
         /* Compress HC using External dictionary */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         dict -= (FUZ_rand(&randState) & 7);    /* even bigger separation */
         if (dict < (char*)CNBuffer) dict = (char*)CNBuffer;
         LZ4_resetStreamHC (&LZ4dictHC, compressionLevel);
@@ -679,18 +688,18 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         blockContinueCompressedSize = LZ4_compress_HC_continue(&LZ4dictHC, block, compressedBuffer, blockSize, (int)compressedBufferSize);
         FUZ_CHECKTEST(blockContinueCompressedSize==0, "LZ4_compress_HC_continue failed");
 
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         LZ4_loadDictHC(&LZ4dictHC, dict, dictSize);
         ret = LZ4_compress_HC_continue(&LZ4dictHC, block, compressedBuffer, blockSize, blockContinueCompressedSize-1);
         FUZ_CHECKTEST(ret>0, "LZ4_compress_HC_continue using ExtDict should fail : one missing byte for output buffer (%i != %i)", ret, blockContinueCompressedSize);
 
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         LZ4_loadDictHC(&LZ4dictHC, dict, dictSize);
         ret = LZ4_compress_HC_continue(&LZ4dictHC, block, compressedBuffer, blockSize, blockContinueCompressedSize);
         FUZ_CHECKTEST(ret!=blockContinueCompressedSize, "LZ4_compress_HC_continue size is different (%i != %i)", ret, blockContinueCompressedSize);
         FUZ_CHECKTEST(ret<=0, "LZ4_compress_HC_continue should work : enough size available within output buffer");
 
-        FUZ_DISPLAYTEST;
+        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");
@@ -701,10 +710,10 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
         FUZ_CHECKTEST(crcCheck!=crcOrig, "LZ4_decompress_safe_usingDict corrupted decoded data");
 
         /* Compress HC continue destSize */
-        FUZ_DISPLAYTEST;
+        FUZ_DISPLAYTEST();
         {   int const availableSpace = (FUZ_rand(&randState) % blockSize) + 5;
             int consumedSize = blockSize;
-            FUZ_DISPLAYTEST;
+            FUZ_DISPLAYTEST();
             LZ4_resetStreamHC (&LZ4dictHC, compressionLevel);
             LZ4_loadDictHC(&LZ4dictHC, dict, dictSize);
             blockContinueCompressedSize = LZ4_compress_HC_continue_destSize(&LZ4dictHC, block, compressedBuffer, &consumedSize, availableSpace);
@@ -713,7 +722,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
             FUZ_CHECKTEST(blockContinueCompressedSize > availableSpace, "LZ4_compress_HC_continue_destSize write overflow");
             FUZ_CHECKTEST(consumedSize > blockSize, "LZ4_compress_HC_continue_destSize read overflow");
 
-            FUZ_DISPLAYTEST;
+            FUZ_DISPLAYTEST();
             decodedBuffer[consumedSize] = 0;
             ret = LZ4_decompress_safe_usingDict(compressedBuffer, decodedBuffer, blockContinueCompressedSize, consumedSize, dict, dictSize);
             FUZ_CHECKTEST(ret!=consumedSize, "LZ4_decompress_safe_usingDict did not regenerate original data");
@@ -1118,13 +1127,13 @@ int main(int argc, const char** argv)
                     return FUZ_usage(programName);
 
                 case 'v':   /* verbose mode */
-                    argument++;
                     g_displayLevel++;
+                    argument++;
                     break;
 
                 case 'p':   /* pause at the end */
-                    argument++;
                     use_pause=1;
+                    argument++;
                     break;
 
                 case 'i':