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Add unit test for no cctx requested params change

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This commit is contained in:
senhuang42 2020-10-19 10:52:41 -04:00
parent 590f7f55f0
commit df470e176b
1 changed files with 20 additions and 0 deletions
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20
tests/fuzzer.c
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@ -1196,6 +1196,26 @@ static int basicUnitTests(U32 const seed, double compressibility)
}
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3d : ldm conditionally enabled by default doesn't change cctx params: ", testNb++);
{ ZSTD_CCtx* const cctx = ZSTD_createCCtx();
ZSTD_outBuffer out = {NULL, 0, 0};
ZSTD_inBuffer in = {NULL, 0, 0};
int value;
/* Even if LDM will be enabled by default in the applied params (since wlog >= 27 and strategy >= btopt),
* we should not modify the actual parameter specified by the user within the CCtx
*/
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 27));
CHECK_Z(ZSTD_CCtx_setParameter(cctx, ZSTD_c_strategy, ZSTD_btopt));
CHECK_Z(ZSTD_compressStream2(cctx, &out, &in, ZSTD_e_continue));
CHECK_Z(ZSTD_CCtx_getParameter(cctx, ZSTD_c_enableLongDistanceMatching, &value));
CHECK_EQ(value, 0);
ZSTD_freeCCtx(cctx);
}
DISPLAYLEVEL(3, "OK \n");
/* this test is really too long, and should be made faster */
DISPLAYLEVEL(3, "test%3d : overflow protection with large windowLog : ", testNb++);
{ ZSTD_CCtx* const cctx = ZSTD_createCCtx();