diff options
Diffstat (limited to 'programs/frametest.c')
| -rw-r--r-- | programs/frametest.c | 76 |
1 files changed, 74 insertions, 2 deletions
diff --git a/programs/frametest.c b/programs/frametest.c index 62b6fa4..96ac3f9 100644 --- a/programs/frametest.c +++ b/programs/frametest.c @@ -381,6 +381,57 @@ int basicTests(U32 seed, double compressibility) if (LZ4F_isError(cSize)) goto _output_error; DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)cSize); + { + size_t errorCode; + BYTE* const ostart = (BYTE*)compressedBuffer; + BYTE* op = ostart; + LZ4F_compressionContext_t cctx; + errorCode = LZ4F_createCompressionContext(&cctx, LZ4F_VERSION); + if (LZ4F_isError(errorCode)) goto _output_error; + + DISPLAYLEVEL(3, "compress without frameSize : \n"); + memset(&(prefs.frameInfo), 0, sizeof(prefs.frameInfo)); + errorCode = LZ4F_compressBegin(cctx, compressedBuffer, testSize, &prefs); + if (LZ4F_isError(errorCode)) goto _output_error; + op += errorCode; + errorCode = LZ4F_compressUpdate(cctx, op, LZ4F_compressBound(testSize, &prefs), CNBuffer, testSize, NULL); + if (LZ4F_isError(errorCode)) goto _output_error; + op += errorCode; + errorCode = LZ4F_compressEnd(cctx, compressedBuffer, testSize, NULL); + if (LZ4F_isError(errorCode)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)(op-ostart)); + + DISPLAYLEVEL(3, "compress with frameSize : \n"); + prefs.frameInfo.frameOSize = testSize; + op = ostart; + errorCode = LZ4F_compressBegin(cctx, compressedBuffer, testSize, &prefs); + if (LZ4F_isError(errorCode)) goto _output_error; + op += errorCode; + errorCode = LZ4F_compressUpdate(cctx, op, LZ4F_compressBound(testSize, &prefs), CNBuffer, testSize, NULL); + if (LZ4F_isError(errorCode)) goto _output_error; + op += errorCode; + errorCode = LZ4F_compressEnd(cctx, compressedBuffer, testSize, NULL); + if (LZ4F_isError(errorCode)) goto _output_error; + DISPLAYLEVEL(3, "Compressed %i bytes into a %i bytes frame \n", (int)testSize, (int)(op-ostart)); + + DISPLAYLEVEL(3, "compress with wrong frameSize : \n"); + prefs.frameInfo.frameOSize = testSize+1; + op = ostart; + errorCode = LZ4F_compressBegin(cctx, compressedBuffer, testSize, &prefs); + if (LZ4F_isError(errorCode)) goto _output_error; + op += errorCode; + errorCode = LZ4F_compressUpdate(cctx, op, LZ4F_compressBound(testSize, &prefs), CNBuffer, testSize, NULL); + if (LZ4F_isError(errorCode)) goto _output_error; + op += errorCode; + errorCode = LZ4F_compressEnd(cctx, op, testSize, NULL); + if (LZ4F_isError(errorCode)) { DISPLAYLEVEL(3, "Error correctly detected : %s \n", LZ4F_getErrorName(errorCode)); } + else + goto _output_error; + + errorCode = LZ4F_freeCompressionContext(cctx); + if (LZ4F_isError(errorCode)) goto _output_error; + } + DISPLAYLEVEL(3, "Skippable frame test : \n"); { size_t decodedBufferSize = COMPRESSIBLE_NOISE_LENGTH; @@ -412,11 +463,13 @@ int basicTests(U32 seed, double compressibility) DISPLAYLEVEL(3, "Skipped %i bytes \n", (int)decodedBufferSize); /* generate zero-size skippable frame */ + DISPLAYLEVEL(3, "zero-size skippable frame\n"); + ip = (BYTE*)compressedBuffer; + op = (BYTE*)decodedBuffer; FUZ_writeLE32(ip, LZ4F_MAGIC_SKIPPABLE_START+1); FUZ_writeLE32(ip+4, 0); iend = ip+8; - DISPLAYLEVEL(3, "random segment sizes : \n"); while (ip < iend) { unsigned nbBits = FUZ_rand(&randState) % maxBits; @@ -428,8 +481,27 @@ int basicTests(U32 seed, double compressibility) op += oSize; ip += iSize; } - DISPLAYLEVEL(3, "Skipped %i bytes \n", (int)decodedBufferSize); + DISPLAYLEVEL(3, "Skipped %i bytes \n", (int)(ip - (BYTE*)compressedBuffer - 8)); + + DISPLAYLEVEL(3, "Skippable frame header complete in first call \n"); + ip = (BYTE*)compressedBuffer; + op = (BYTE*)decodedBuffer; + FUZ_writeLE32(ip, LZ4F_MAGIC_SKIPPABLE_START+2); + FUZ_writeLE32(ip+4, 10); + iend = ip+18; + while (ip < iend) + { + size_t iSize = 10; + size_t oSize = 10; + if (iSize > (size_t)(iend-ip)) iSize = iend-ip; + errorCode = LZ4F_decompress(dCtx, op, &oSize, ip, &iSize, NULL); + if (LZ4F_isError(errorCode)) goto _output_error; + op += oSize; + ip += iSize; + } + DISPLAYLEVEL(3, "Skipped %i bytes \n", (int)(ip - (BYTE*)compressedBuffer - 8)); + /* release memory */ errorCode = LZ4F_freeDecompressionContext(dCtx); if (LZ4F_isError(errorCode)) goto _output_error; } |