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samba-mirror/lib/util/tests/test_sys_rw.c
Ralph Boehme 2f523a03f5 lib: add sys_block_align[_truncate]()
This implements MS-FSA algorithms BlockAlign() and BlockAlignTruncate().

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2021-10-08 19:28:32 +00:00

179 lines
4.3 KiB
C

/*
* Unix SMB/CIFS implementation.
*
* Unit test for sys_rw.c
*
* Copyright (C) Ralph Böhme 2021
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <setjmp.h>
#include <cmocka.h>
#include "lib/replace/replace.h"
#include "system/dir.h"
#include "lib/util/sys_rw.c"
static void test_sys_io_ranges_overlap(void **state)
{
bool overlap;
/*
* sys_io_ranges_overlap() args are:
*
* src size, src offset, dst size, dst offset
*/
/* src and dst size 0 => no overlap */
overlap = sys_io_ranges_overlap(0, 0, 0, 0);
assert_false(overlap);
/* dst size 0 => no overlap */
overlap = sys_io_ranges_overlap(1, 0, 0, 0);
assert_false(overlap);
/* src size 0 => no overlap */
overlap = sys_io_ranges_overlap(0, 0, 1, 0);
assert_false(overlap);
/* same range => overlap */
overlap = sys_io_ranges_overlap(1, 0, 1, 0);
assert_true(overlap);
/*
* |.|
* |.|
* src before dst => no overlap
*/
overlap = sys_io_ranges_overlap(1, 0, 1, 1);
assert_false(overlap);
/*
* |..|
* |..|
* src into dst => overlap
*/
overlap = sys_io_ranges_overlap(2, 0, 2, 1);
assert_true(overlap);
/*
* |....|
* |..|
* src encompasses dst => overlap
*/
overlap = sys_io_ranges_overlap(4, 0, 1, 2);
assert_true(overlap);
/*
* |..|
* |..|
* dst into src => overlap
*/
overlap = sys_io_ranges_overlap(2, 1, 2, 0);
assert_true(overlap);
/*
* |..|
* |....|
* dst encompasses src => overlap
*/
overlap = sys_io_ranges_overlap(2, 1, 4, 0);
assert_true(overlap);
}
static void test_sys_block_align(void **state)
{
int asize;
asize = sys_block_align(0, 2);
assert_int_equal(asize, 0);
asize = sys_block_align(1, 2);
assert_int_equal(asize, 2);
asize = sys_block_align(2, 2);
assert_int_equal(asize, 2);
asize = sys_block_align(3, 2);
assert_int_equal(asize, 4);
asize = sys_block_align(0, 4);
assert_int_equal(asize, 0);
asize = sys_block_align(1, 4);
assert_int_equal(asize, 4);
asize = sys_block_align(3, 4);
assert_int_equal(asize, 4);
asize = sys_block_align(4, 4);
assert_int_equal(asize, 4);
asize = sys_block_align(5, 4);
assert_int_equal(asize, 8);
asize = sys_block_align(7, 4);
assert_int_equal(asize, 8);
asize = sys_block_align(8, 4);
assert_int_equal(asize, 8);
asize = sys_block_align(9, 4);
assert_int_equal(asize, 12);
}
static void test_sys_block_align_truncate(void **state)
{
int asize;
asize = sys_block_align_truncate(0, 2);
assert_int_equal(asize, 0);
asize = sys_block_align_truncate(1, 2);
assert_int_equal(asize, 0);
asize = sys_block_align_truncate(2, 2);
assert_int_equal(asize, 2);
asize = sys_block_align_truncate(3, 2);
assert_int_equal(asize, 2);
asize = sys_block_align_truncate(4, 2);
assert_int_equal(asize, 4);
asize = sys_block_align_truncate(5, 2);
assert_int_equal(asize, 4);
asize = sys_block_align_truncate(0, 4);
assert_int_equal(asize, 0);
asize = sys_block_align_truncate(1, 4);
assert_int_equal(asize, 0);
asize = sys_block_align_truncate(3, 4);
assert_int_equal(asize, 0);
asize = sys_block_align_truncate(4, 4);
assert_int_equal(asize, 4);
asize = sys_block_align_truncate(5, 4);
assert_int_equal(asize, 4);
asize = sys_block_align_truncate(7, 4);
assert_int_equal(asize, 4);
asize = sys_block_align_truncate(8, 4);
assert_int_equal(asize, 8);
asize = sys_block_align_truncate(9, 4);
assert_int_equal(asize, 8);
}
int main(int argc, char **argv)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_sys_io_ranges_overlap),
cmocka_unit_test(test_sys_block_align),
cmocka_unit_test(test_sys_block_align_truncate),
};
cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
return cmocka_run_group_tests(tests, NULL, NULL);
}