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tests: Regression check src/bignum.c.

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Signed-off-by: Simon Josefsson <simon@josefsson.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Simon Josefsson
2023-08-20 18:31:32 +02:00
committed by Jakub Jelen
parent 504faca67a
commit f09bb04025
2 changed files with 107 additions and 0 deletions
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1
tests/unittests/CMakeLists.txt
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@@ -3,6 +3,7 @@ project(unittests C)
include_directories(${OPENSSL_INCLUDE_DIR})
set(LIBSSH_UNIT_TESTS
torture_bignum
torture_buffer
torture_bytearray
torture_callbacks

106
tests/unittests/torture_bignum.c Normal file
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@@ -0,0 +1,106 @@
#include "config.h"
#define LIBSSH_STATIC
#include "torture.h"
#include "libssh/bignum.h"
#include "libssh/string.h"
static void check_str (int n, ssh_string str)
{
if (n > 0 && n <= 127) {
assert_int_equal(1, ntohl (str->size));
assert_int_equal(n, str->data[0]);
} else if (n > 127 && n <= 255) {
assert_int_equal(2, ntohl (str->size));
assert_int_equal(0, str->data[0]);
assert_int_equal(n, str->data[1]);
} else if (n > 255 && n <= 32767) {
assert_int_equal(2, ntohl (str->size));
assert_int_equal(n >> 8, str->data[0]);
assert_int_equal(n & 0xFF, str->data[1]);
} else {
assert_int_equal(3, ntohl (str->size));
assert_int_equal(n >> 16, str->data[0]);
assert_int_equal((n >> 8) & 0xFF, str->data[1]);
assert_int_equal(n & 0xFF, str->data[2]);
}
}
static void check_bignum(int n, const char *nstr) {
bignum num, num2;
ssh_string str;
char *dec;
num = bignum_new();
assert_non_null(num);
assert_int_equal (1, bignum_set_word (num, n));
ssh_print_bignum("num", num);
dec = bignum_bn2dec (num);
assert_non_null (dec);
assert_string_equal (nstr, dec);
ssh_crypto_free(dec);
/* ssh_make_bignum_string */
str = ssh_make_bignum_string(num);
assert_non_null(str);
check_str (n, str);
/* ssh_make_string_bn */
num2 = ssh_make_string_bn(str);
ssh_string_free (str);
assert_non_null(num2);
ssh_print_bignum("num2", num2);
assert_int_equal (0, bignum_cmp (num, num2));
dec = bignum_bn2dec (num2);
assert_non_null (dec);
assert_string_equal (nstr, dec);
ssh_crypto_free(dec);
bignum_safe_free(num);
bignum_safe_free(num2);
}
static void torture_bignum(void **state) {
(void) state; /* unused */
ssh_set_log_level(SSH_LOG_TRACE);
check_bignum (1, "1");
check_bignum (17, "17");
check_bignum (42, "42");
check_bignum (127, "127");
check_bignum (128, "128");
check_bignum (254, "254");
check_bignum (255, "255");
check_bignum (256, "256");
check_bignum (257, "257");
check_bignum (300, "300");
check_bignum (32767, "32767");
check_bignum (32768, "32768");
check_bignum (65535, "65535");
check_bignum (65536, "65536");
}
int torture_run_tests(void) {
int rc;
struct CMUnitTest tests[] = {
cmocka_unit_test(torture_bignum),
};
ssh_init();
torture_filter_tests(tests);
rc = cmocka_run_group_tests(tests, NULL, NULL);
ssh_finalize();
return rc;
}