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Tests: Add test_memlimit.c to test restarting after LZMA_MEMLIMIT_ERROR.

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This commit is contained in:
Lasse Collin 2022-09-28 11:12:07 +03:00
parent 660739f99a
commit 5a4d3548ab
2 changed files with 153 additions and 0 deletions
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2
tests/Makefile.am
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@ -45,6 +45,7 @@ check_PROGRAMS = \
test_block_header \ test_block_header \
test_index \ test_index \
test_bcj_exact_size \ test_bcj_exact_size \
test_memlimit \
test_vli test_vli
TESTS = \ TESTS = \
@ -55,6 +56,7 @@ TESTS = \
test_block_header \ test_block_header \
test_index \ test_index \
test_bcj_exact_size \ test_bcj_exact_size \
test_memlimit \
test_vli \ test_vli \
test_files.sh \ test_files.sh \
test_compress_prepared_bcj_sparc \ test_compress_prepared_bcj_sparc \

151
tests/test_memlimit.c Normal file
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@ -0,0 +1,151 @@
///////////////////////////////////////////////////////////////////////////////
//
/// \file test_memlimit.c
/// \brief Tests memory usage limit in decoders
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include "tests.h"
#define MEMLIMIT_TOO_LOW 1234U
#define MEMLIMIT_HIGH_ENOUGH (2U << 20)
static uint8_t *in;
static size_t in_size;
static uint8_t out[8192];
static void
test_memlimit_stream_decoder(void)
{
lzma_stream strm = LZMA_STREAM_INIT;
assert_lzma_ret(lzma_stream_decoder(&strm, MEMLIMIT_TOO_LOW, 0),
LZMA_OK);
strm.next_in = in;
strm.avail_in = in_size;
strm.next_out = out;
strm.avail_out = sizeof(out);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
LZMA_MEMLIMIT_ERROR);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
LZMA_OK);
// This fails before commit 660739f99ab211edec4071de98889fb32ed04e98
// (liblzma <= 5.2.6, liblzma <= 5.3.3alpha). It was fixed in 5.2.7.
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
lzma_end(&strm);
}
static void
test_memlimit_stream_decoder_mt(void)
{
lzma_stream strm = LZMA_STREAM_INIT;
lzma_mt mt = {
.flags = 0,
.threads = 1,
.timeout = 0,
.memlimit_threading = 0,
.memlimit_stop = MEMLIMIT_TOO_LOW,
};
assert_lzma_ret(lzma_stream_decoder_mt(&strm, &mt), LZMA_OK);
strm.next_in = in;
strm.avail_in = in_size;
strm.next_out = out;
strm.avail_out = sizeof(out);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
LZMA_MEMLIMIT_ERROR);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
LZMA_OK);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
lzma_end(&strm);
}
static void
test_memlimit_alone_decoder(void)
{
size_t alone_size;
uint8_t *alone_buf = tuktest_file_from_srcdir(
"files/good-unknown_size-with_eopm.lzma", &alone_size);
lzma_stream strm = LZMA_STREAM_INIT;
assert_lzma_ret(lzma_alone_decoder(&strm, MEMLIMIT_TOO_LOW), LZMA_OK);
strm.next_in = alone_buf;
strm.avail_in = alone_size;
strm.next_out = out;
strm.avail_out = sizeof(out);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
LZMA_MEMLIMIT_ERROR);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
LZMA_OK);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
lzma_end(&strm);
}
static void
test_memlimit_auto_decoder(void)
{
lzma_stream strm = LZMA_STREAM_INIT;
assert_lzma_ret(lzma_auto_decoder(&strm, MEMLIMIT_TOO_LOW, 0),
LZMA_OK);
strm.next_in = in;
strm.avail_in = in_size;
strm.next_out = out;
strm.avail_out = sizeof(out);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_MEMLIMIT_ERROR);
assert_uint_eq(lzma_memlimit_get(&strm), MEMLIMIT_TOO_LOW);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_TOO_LOW + 1),
LZMA_MEMLIMIT_ERROR);
assert_lzma_ret(lzma_memlimit_set(&strm, MEMLIMIT_HIGH_ENOUGH),
LZMA_OK);
assert_lzma_ret(lzma_code(&strm, LZMA_FINISH), LZMA_STREAM_END);
lzma_end(&strm);
}
extern int
main(int argc, char **argv)
{
tuktest_start(argc, argv);
in = tuktest_file_from_srcdir("files/good-1-check-crc32.xz", &in_size);
tuktest_run(test_memlimit_stream_decoder);
tuktest_run(test_memlimit_stream_decoder_mt);
tuktest_run(test_memlimit_alone_decoder);
tuktest_run(test_memlimit_auto_decoder);
return tuktest_end();
}