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Merge pull request #2333 from terrelln/stable-dst

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Reset all decompression parameters in ZSTD_DCtx_reset()
This commit is contained in:
Nick Terrell
2020-10-01 18:56:11 -07:00
committed by GitHub
parent cc88eb7594 2e7d174130
commit 0057c4acf7
3 changed files with 66 additions and 6 deletions
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tests/fuzzer.c
+28
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@@ -2488,6 +2488,34 @@ static int basicUnitTests(U32 const seed, double compressibility)
ZSTD_freeDCtx(dctx);
}
DISPLAYLEVEL(3, "test%3i : Decompression parameter reset test : ", testNb++);
{
ZSTD_DCtx* const dctx = ZSTD_createDCtx();
/* Attempt to future proof this to new parameters. */
int const maxParam = 2000;
int param;
if (ZSTD_d_experimentalParam3 > maxParam) goto _output_error;
for (param = 0; param < maxParam; ++param) {
ZSTD_dParameter dParam = (ZSTD_dParameter)param;
ZSTD_bounds bounds = ZSTD_dParam_getBounds(dParam);
int value1;
int value2;
int check;
if (ZSTD_isError(bounds.error))
continue;
CHECK(ZSTD_DCtx_getParameter(dctx, dParam, &value1));
value2 = (value1 != bounds.lowerBound) ? bounds.lowerBound : bounds.upperBound;
CHECK(ZSTD_DCtx_setParameter(dctx, dParam, value2));
CHECK(ZSTD_DCtx_getParameter(dctx, dParam, &check));
if (check != value2) goto _output_error;
CHECK(ZSTD_DCtx_reset(dctx, ZSTD_reset_parameters));
CHECK(ZSTD_DCtx_getParameter(dctx, dParam, &check));
if (check != value1) goto _output_error;
}
ZSTD_freeDCtx(dctx);
}
DISPLAYLEVEL(3, "OK \n");
/* block API tests */
{ ZSTD_CCtx* const cctx = ZSTD_createCCtx();
ZSTD_DCtx* const dctx = ZSTD_createDCtx();