Rename initCheck to dirtyContext and use it in LZ4_resetStream_fast() to check if full reset is needed.

1 files changed, 8 insertions, 3 deletions

diff --git a/tests/fuzzer.c b/tests/fuzzer.c
index b29e82e..de434f9 100644
--- a/tests/fuzzer.c
+++ b/tests/fuzzer.c
@@ -744,6 +744,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
             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_CHECKTEST(LZ4_stream.internal_donotuse.dirtyContext, "context should be good");
 
             /* In the future, it might be desirable to let extDictCtx mode's
              * output diverge from the output generated by regular extDict mode.
@@ -754,19 +755,21 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
             FUZ_CHECKTEST(XXH32(compressedBuffer, blockContinueCompressedSize, 0) != expectedCrc, "LZ4_compress_fast_continue using extDictCtx produced different output");
 
             FUZ_DISPLAYTEST("LZ4_compress_fast_continue() after LZ4_attach_dictionary(), but output buffer is 1 byte too short");
-            LZ4_resetStream(&LZ4_stream);
+            LZ4_resetStream_fast(&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_CHECKTEST(!LZ4_stream.internal_donotuse.dirtyContext, "context should be dirty");
 
             FUZ_DISPLAYTEST();
-            LZ4_resetStream(&LZ4_stream);
+            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 should work : enough size available within output buffer");
             FUZ_CHECKTEST(ret != expectedSize, "LZ4_compress_fast_continue using extDictCtx produced different-sized output");
             FUZ_CHECKTEST(XXH32(compressedBuffer, ret, 0) != expectedCrc, "LZ4_compress_fast_continue using extDictCtx produced different output");
+            FUZ_CHECKTEST(LZ4_stream.internal_donotuse.dirtyContext, "context should be good");
 
             FUZ_DISPLAYTEST();
             LZ4_resetStream_fast(&LZ4_stream);
@@ -776,6 +779,7 @@ static int FUZ_test(U32 seed, U32 nbCycles, const U32 startCycle, const double c
             FUZ_CHECKTEST(ret<=0, "LZ4_compress_fast_continue using extDictCtx with re-used context should work : enough size available within output buffer");
             FUZ_CHECKTEST(ret != expectedSize, "LZ4_compress_fast_continue using extDictCtx produced different-sized output");
             FUZ_CHECKTEST(XXH32(compressedBuffer, ret, 0) != expectedCrc, "LZ4_compress_fast_continue using extDictCtx produced different output");
+            FUZ_CHECKTEST(LZ4_stream.internal_donotuse.dirtyContext, "context should be good");
         }
 
         /* Decompress with dictionary as external */
@@ -990,6 +994,7 @@ static void FUZ_unitTests(int compressionLevel)
         LZ4_resetStream(&streamingState);
         result = LZ4_compress_fast_continue(&streamingState, testInput, testCompressed, testCompressedSize, testCompressedSize-1, 1);
         FUZ_CHECKTEST(result==0, "LZ4_compress_fast_continue() compression failed!");
+        FUZ_CHECKTEST(streamingState.internal_donotuse.dirtyContext, "dirtyContext flag is set")
 
         result = LZ4_decompress_safe(testCompressed, testVerify, result, testCompressedSize);
         FUZ_CHECKTEST(result!=(int)testCompressedSize, "LZ4_decompress_safe() decompression failed");
@@ -1012,7 +1017,7 @@ static void FUZ_unitTests(int compressionLevel)
             XXH64_reset(&xxhOrig, 0);
             XXH64_reset(&xxhNewSafe, 0);
             XXH64_reset(&xxhNewFast, 0);
-            LZ4_resetStream(&streamingState);
+            LZ4_resetStream_fast(&streamingState);
             LZ4_setStreamDecode(&decodeStateSafe, NULL, 0);
             LZ4_setStreamDecode(&decodeStateFast, NULL, 0);