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Tests: Convert test_bcj_exact_size to tuktest. 

The compress() and decompress() functions were merged because
the later depends on the former so they need to be a single
test case.
This commit is contained in:
Lasse Collin 2022-06-02 20:28:23 +03:00
parent 96da21470f
commit 754d39fbeb
1 changed files with 42 additions and 35 deletions
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77
tests/test_bcj_exact_size.c
View File

@ -15,25 +15,24 @@
#include "tests.h"
/// Something to be compressed
static const uint8_t in[16] = "0123456789ABCDEF";
/// in[] after compression
static uint8_t compressed[1024];
static size_t compressed_size = 0;
/// Output buffer for decompressing compressed[]
static uint8_t out[sizeof(in)];
static void
compress(void)
test_exact_size(void)
{
// Something to be compressed
const uint8_t in[16] = "0123456789ABCDEF";
// in[] after compression
uint8_t compressed[1024];
size_t compressed_size = 0;
// Output buffer for decompressing compressed[]
uint8_t out[sizeof(in)];
// Compress with PowerPC BCJ and LZMA2. PowerPC BCJ is used because
// it has fixed 4-byte alignment which makes triggering the potential
// bug easy.
lzma_options_lzma opt_lzma2;
succeed(lzma_lzma_preset(&opt_lzma2, 0));
assert_false(lzma_lzma_preset(&opt_lzma2, 0));
lzma_filter filters[3] = {
{ .id = LZMA_FILTER_POWERPC, .options = NULL },
@ -41,18 +40,16 @@ compress(void)
{ .id = LZMA_VLI_UNKNOWN, .options = NULL },
};
expect(lzma_stream_buffer_encode(filters, LZMA_CHECK_CRC32, NULL,
assert_lzma_ret(lzma_stream_buffer_encode(
filters, LZMA_CHECK_CRC32, NULL,
in, sizeof(in),
compressed, &compressed_size, sizeof(compressed))
== LZMA_OK);
}
compressed, &compressed_size, sizeof(compressed)),
LZMA_OK);
static void
decompress(void)
{
// Decompress so that we won't give more output space than
// the Stream will need.
lzma_stream strm = LZMA_STREAM_INIT;
expect(lzma_stream_decoder(&strm, 10 << 20, 0) == LZMA_OK);
assert_lzma_ret(lzma_stream_decoder(&strm, 10 << 20, 0), LZMA_OK);
strm.next_in = compressed;
strm.next_out = out;
@ -63,13 +60,13 @@ decompress(void)
const lzma_ret ret = lzma_code(&strm, LZMA_RUN);
if (ret == LZMA_STREAM_END) {
expect(strm.total_in == compressed_size);
expect(strm.total_out == sizeof(in));
assert_uint_eq(strm.total_in, compressed_size);
assert_uint_eq(strm.total_out, sizeof(in));
lzma_end(&strm);
return;
}
expect(ret == LZMA_OK);
assert_lzma_ret(ret, LZMA_OK);
if (strm.total_out < sizeof(in))
strm.avail_out = 1;
@ -78,7 +75,7 @@ decompress(void)
static void
decompress_empty(void)
test_empty_block(void)
{
// An empty file with one Block using PowerPC BCJ and LZMA2.
static const uint8_t empty_bcj_lzma2[] = {
@ -93,21 +90,31 @@ decompress_empty(void)
// Decompress without giving any output space.
uint64_t memlimit = 1 << 20;
uint8_t out[1];
size_t in_pos = 0;
size_t out_pos = 0;
expect(lzma_stream_buffer_decode(&memlimit, 0, NULL,
assert_lzma_ret(lzma_stream_buffer_decode(&memlimit, 0, NULL,
empty_bcj_lzma2, &in_pos, sizeof(empty_bcj_lzma2),
out, &out_pos, 0) == LZMA_OK);
expect(in_pos == sizeof(empty_bcj_lzma2));
expect(out_pos == 0);
out, &out_pos, 0),
LZMA_OK);
assert_uint_eq(in_pos, sizeof(empty_bcj_lzma2));
assert_uint_eq(out_pos, 0);
}
extern int
main(void)
main(int argc, char **argv)
{
compress();
decompress();
decompress_empty();
return 0;
tuktest_start(argc, argv);
if (!lzma_filter_encoder_is_supported(LZMA_FILTER_POWERPC)
|| !lzma_filter_decoder_is_supported(
LZMA_FILTER_POWERPC))
tuktest_early_skip("PowerPC BCJ encoder and/or decoder "
"is disabled");
tuktest_run(test_exact_size);
tuktest_run(test_empty_block);
return tuktest_end();
}