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NetworkManager/shared/nm-utils/tests/test-shared-general.c
Thomas Haller 0a6f21fb8d shared: split C-only helper "shared/nm-std-aux" utils out of "shared/nm-utils" 
"shared/nm-utils" contains general purpose utility functions that only
depend on glib (and extend glib with some helper functions).

We will also add code that does not use glib, hence it would be good
if the part of "shared/nm-utils" that does not depend on glib, could be
used by these future projects.

Also, we use the term "utils" everywhere. While that covers the purpose
and content well, having everything called "nm-something-utils" is not
great. Instead, call this "nm-std-aux", inspired by "c-util/c-stdaux".

(cherry picked from commit b434b9ec07)
2019-04-18 19:17:23 +02:00

464 lines
13 KiB
C
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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* Copyright 2018 Red Hat, Inc.
*/
#define NM_TEST_UTILS_NO_LIBNM 1
#include "nm-default.h"
#include "nm-std-aux/unaligned.h"
#include "nm-utils/nm-random-utils.h"
#include "nm-utils/nm-time-utils.h"
#include "nm-utils/nm-test-utils.h"
/*****************************************************************************/
static int _monotonic_timestamp_initialized;
void
_nm_utils_monotonic_timestamp_initialized (const struct timespec *tp,
gint64 offset_sec,
gboolean is_boottime)
{
g_assert (!_monotonic_timestamp_initialized);
_monotonic_timestamp_initialized = 1;
}
/*****************************************************************************/
static void
test_monotonic_timestamp (void)
{
g_assert (nm_utils_get_monotonic_timestamp_s () > 0);
g_assert (_monotonic_timestamp_initialized);
}
/*****************************************************************************/
static void
test_nmhash (void)
{
int rnd;
nm_utils_random_bytes (&rnd, sizeof (rnd));
g_assert (nm_hash_val (555, 4) != 0);
}
/*****************************************************************************/
static const char *
_make_strv_foo (void)
{
return "foo";
}
static const char *const*const _tst_make_strv_1 = NM_MAKE_STRV ("1", "2");
static void
test_make_strv (void)
{
const char *const*v1a = NM_MAKE_STRV ("a");
const char *const*v1b = NM_MAKE_STRV ("a", );
const char *const*v2a = NM_MAKE_STRV ("a", "b");
const char *const*v2b = NM_MAKE_STRV ("a", "b", );
const char *const v3[] = { "a", "b", };
const char *const*v4b = NM_MAKE_STRV ("a", _make_strv_foo (), );
g_assert (NM_PTRARRAY_LEN (v1a) == 1);
g_assert (NM_PTRARRAY_LEN (v1b) == 1);
g_assert (NM_PTRARRAY_LEN (v2a) == 2);
g_assert (NM_PTRARRAY_LEN (v2b) == 2);
g_assert (NM_PTRARRAY_LEN (_tst_make_strv_1) == 2);
g_assert_cmpstr (_tst_make_strv_1[0], ==, "1");
g_assert_cmpstr (_tst_make_strv_1[1], ==, "2");
/* writing the static read-only variable leads to crash .*/
//((char **) _tst_make_strv_1)[0] = NULL;
//((char **) _tst_make_strv_1)[2] = "c";
G_STATIC_ASSERT_EXPR (G_N_ELEMENTS (v3) == 2);
g_assert (NM_PTRARRAY_LEN (v4b) == 2);
G_STATIC_ASSERT_EXPR (G_N_ELEMENTS (NM_MAKE_STRV ("a", "b" )) == 3);
G_STATIC_ASSERT_EXPR (G_N_ELEMENTS (NM_MAKE_STRV ("a", "b", )) == 3);
nm_strquote_a (300, "");
}
/*****************************************************************************/
typedef enum {
TEST_NM_STRDUP_ENUM_m1 = -1,
TEST_NM_STRDUP_ENUM_3 = 3,
} TestNMStrdupIntEnum;
static void
test_nm_strdup_int (void)
{
#define _NM_STRDUP_INT_TEST(num, str) \
G_STMT_START { \
gs_free char *_s1 = NULL; \
\
_s1 = nm_strdup_int ((num)); \
\
g_assert (_s1); \
g_assert_cmpstr (_s1, ==, str); \
} G_STMT_END
#define _NM_STRDUP_INT_TEST_TYPED(type, num) \
G_STMT_START { \
type _num = ((type) num); \
\
_NM_STRDUP_INT_TEST (_num, G_STRINGIFY (num)); \
} G_STMT_END
_NM_STRDUP_INT_TEST_TYPED (char, 0);
_NM_STRDUP_INT_TEST_TYPED (char, 1);
_NM_STRDUP_INT_TEST_TYPED (guint8, 0);
_NM_STRDUP_INT_TEST_TYPED (gint8, 25);
_NM_STRDUP_INT_TEST_TYPED (char, 47);
_NM_STRDUP_INT_TEST_TYPED (short, 47);
_NM_STRDUP_INT_TEST_TYPED (int, 47);
_NM_STRDUP_INT_TEST_TYPED (long, 47);
_NM_STRDUP_INT_TEST_TYPED (unsigned char, 47);
_NM_STRDUP_INT_TEST_TYPED (unsigned short, 47);
_NM_STRDUP_INT_TEST_TYPED (unsigned, 47);
_NM_STRDUP_INT_TEST_TYPED (unsigned long, 47);
_NM_STRDUP_INT_TEST_TYPED (gint64, 9223372036854775807);
_NM_STRDUP_INT_TEST_TYPED (gint64, -9223372036854775807);
_NM_STRDUP_INT_TEST_TYPED (guint64, 0);
_NM_STRDUP_INT_TEST_TYPED (guint64, 9223372036854775807);
_NM_STRDUP_INT_TEST (TEST_NM_STRDUP_ENUM_m1, "-1");
_NM_STRDUP_INT_TEST (TEST_NM_STRDUP_ENUM_3, "3");
}
/*****************************************************************************/
static void
test_nm_strndup_a (void)
{
int run;
for (run = 0; run < 20; run++) {
gs_free char *input = NULL;
char ch;
gsize i, l;
input = g_strnfill (nmtst_get_rand_int () % 20, 'x');
for (i = 0; input[i]; i++) {
while ((ch = ((char) nmtst_get_rand_int ())) == '\0') {
/* repeat. */
}
input[i] = ch;
}
{
gs_free char *dup_free = NULL;
const char *dup;
l = strlen (input) + 1;
dup = nm_strndup_a (10, input, l - 1, &dup_free);
g_assert_cmpstr (dup, ==, input);
if (strlen (dup) < 10)
g_assert (!dup_free);
else
g_assert (dup == dup_free);
}
{
gs_free char *dup_free = NULL;
const char *dup;
l = nmtst_get_rand_int () % 23;
dup = nm_strndup_a (10, input, l, &dup_free);
g_assert (strncmp (dup, input, l) == 0);
g_assert (strlen (dup) <= l);
if (l < 10)
g_assert (!dup_free);
else
g_assert (dup == dup_free);
if (strlen (input) < l)
g_assert (nm_utils_memeqzero (&dup[strlen (input)], l - strlen (input)));
}
}
}
/*****************************************************************************/
static void
test_nm_ip4_addr_is_localhost (void)
{
g_assert ( nm_ip4_addr_is_localhost (nmtst_inet4_from_string ("127.0.0.0")));
g_assert ( nm_ip4_addr_is_localhost (nmtst_inet4_from_string ("127.0.0.1")));
g_assert ( nm_ip4_addr_is_localhost (nmtst_inet4_from_string ("127.5.0.1")));
g_assert (!nm_ip4_addr_is_localhost (nmtst_inet4_from_string ("126.5.0.1")));
g_assert (!nm_ip4_addr_is_localhost (nmtst_inet4_from_string ("128.5.0.1")));
g_assert (!nm_ip4_addr_is_localhost (nmtst_inet4_from_string ("129.5.0.1")));
}
/*****************************************************************************/
static void
test_unaligned (void)
{
int shift;
for (shift = 0; shift <= 32; shift++) {
guint8 buf[100] = { };
guint8 val = 0;
while (val == 0)
val = nmtst_get_rand_int () % 256;
buf[shift] = val;
g_assert_cmpint (unaligned_read_le64 (&buf[shift]), ==, (guint64) val);
g_assert_cmpint (unaligned_read_be64 (&buf[shift]), ==, ((guint64) val) << 56);
g_assert_cmpint (unaligned_read_ne64 (&buf[shift]), !=, 0);
g_assert_cmpint (unaligned_read_le32 (&buf[shift]), ==, (guint32) val);
g_assert_cmpint (unaligned_read_be32 (&buf[shift]), ==, ((guint32) val) << 24);
g_assert_cmpint (unaligned_read_ne32 (&buf[shift]), !=, 0);
g_assert_cmpint (unaligned_read_le16 (&buf[shift]), ==, (guint16) val);
g_assert_cmpint (unaligned_read_be16 (&buf[shift]), ==, ((guint16) val) << 8);
g_assert_cmpint (unaligned_read_ne16 (&buf[shift]), !=, 0);
}
}
/*****************************************************************************/
static void
_strv_cmp_fuzz_input (const char *const*in,
gssize l,
const char ***out_strv_free_shallow,
char ***out_strv_free_deep,
const char *const* *out_s1,
const char *const* *out_s2)
{
const char **strv;
gsize i;
/* Fuzz the input argument. It will return two output arrays that are semantically
* equal the input. */
if (nmtst_get_rand_bool ()) {
char **ss;
if (l < 0)
ss = g_strdupv ((char **) in);
else if (l == 0) {
ss = nmtst_get_rand_bool ()
? NULL
: g_new0 (char *, 1);
} else {
ss = nm_memdup (in, sizeof (const char *) * l);
for (i = 0; i < (gsize) l; i++)
ss[i] = g_strdup (ss[i]);
}
strv = (const char **) ss;
*out_strv_free_deep = ss;
} else {
if (l < 0) {
strv = in
? nm_memdup (in, sizeof (const char *) * (NM_PTRARRAY_LEN (in) + 1))
: NULL;
} else if (l == 0) {
strv = nmtst_get_rand_bool ()
? NULL
: g_new0 (const char *, 1);
} else
strv = nm_memdup (in, sizeof (const char *) * l);
*out_strv_free_shallow = strv;
}
*out_s1 = in;
*out_s2 = strv;
if (nmtst_get_rand_bool ()) {
/* randomly swap the original and the clone. That means, out_s1 is either
* the input argument (as-is) or the sementically equal clone. */
NMTST_SWAP (*out_s1, *out_s2);
}
if (nmtst_get_rand_bool ()) {
/* randomly make s1 and s2 the same. This is for testing that
* comparing two identical pointers yields the same result. */
*out_s2 = *out_s1;
}
}
static void
_strv_cmp_free_deep (char **strv,
gssize len)
{
gssize i;
if (strv) {
if (len < 0)
g_strfreev (strv);
else {
for (i = 0; i < len; i++)
g_free (strv[i]);
g_free (strv);
}
}
}
static void
test_strv_cmp (void)
{
const char *const strv0[1] = { };
const char *const strv1[2] = { "", };
#define _STRV_CMP(a1, l1, a2, l2, equal) \
G_STMT_START { \
gssize _l1 = (l1); \
gssize _l2 = (l2); \
const char *const*_a1; \
const char *const*_a2; \
const char *const*_a1x; \
const char *const*_a2x; \
char **_a1_free_deep = NULL; \
char **_a2_free_deep = NULL; \
gs_free const char **_a1_free_shallow = NULL; \
gs_free const char **_a2_free_shallow = NULL; \
int _c1, _c2; \
\
_strv_cmp_fuzz_input ((a1), _l1, &_a1_free_shallow, &_a1_free_deep, &_a1, &_a1x); \
_strv_cmp_fuzz_input ((a2), _l2, &_a2_free_shallow, &_a2_free_deep, &_a2, &_a2x); \
\
_c1 = _nm_utils_strv_cmp_n (_a1, _l1, _a2, _l2); \
_c2 = _nm_utils_strv_cmp_n (_a2, _l2, _a1, _l1); \
if (equal) { \
g_assert_cmpint (_c1, ==, 0); \
g_assert_cmpint (_c2, ==, 0); \
} else { \
g_assert_cmpint (_c1, ==, -1); \
g_assert_cmpint (_c2, ==, 1); \
} \
\
/* Compare with self. _strv_cmp_fuzz_input() randomly swapped the arguments (_a1 and _a1x).
* Either way, the arrays must compare equal to their semantically equal alternative. */ \
g_assert_cmpint (_nm_utils_strv_cmp_n (_a1, _l1, _a1x, _l1), ==, 0); \
g_assert_cmpint (_nm_utils_strv_cmp_n (_a2, _l2, _a2x, _l2), ==, 0); \
\
_strv_cmp_free_deep (_a1_free_deep, _l1); \
_strv_cmp_free_deep (_a2_free_deep, _l2); \
} G_STMT_END
_STRV_CMP (NULL, -1, NULL, -1, TRUE);
_STRV_CMP (NULL, -1, NULL, 0, FALSE);
_STRV_CMP (NULL, -1, strv0, 0, FALSE);
_STRV_CMP (NULL, -1, strv0, -1, FALSE);
_STRV_CMP (NULL, 0, NULL, 0, TRUE);
_STRV_CMP (NULL, 0, strv0, 0, TRUE);
_STRV_CMP (NULL, 0, strv0, -1, TRUE);
_STRV_CMP (strv0, 0, strv0, 0, TRUE);
_STRV_CMP (strv0, 0, strv0, -1, TRUE);
_STRV_CMP (strv0, -1, strv0, -1, TRUE);
_STRV_CMP (NULL, 0, strv1, -1, FALSE);
_STRV_CMP (NULL, 0, strv1, 1, FALSE);
_STRV_CMP (strv0, 0, strv1, -1, FALSE);
_STRV_CMP (strv0, 0, strv1, 1, FALSE);
_STRV_CMP (strv0, -1, strv1, -1, FALSE);
_STRV_CMP (strv0, -1, strv1, 1, FALSE);
_STRV_CMP (strv1, -1, strv1, 1, TRUE);
_STRV_CMP (strv1, 1, strv1, 1, TRUE);
}
/*****************************************************************************/
static void
_do_strstrip_avoid_copy (const char *str)
{
gs_free char *str1 = g_strdup (str);
gs_free char *str2 = g_strdup (str);
gs_free char *str3 = NULL;
gs_free char *str4 = NULL;
const char *s3;
const char *s4;
if (str1)
g_strstrip (str1);
nm_strstrip (str2);
g_assert_cmpstr (str1, ==, str2);
s3 = nm_strstrip_avoid_copy (str, &str3);
g_assert_cmpstr (str1, ==, s3);
s4 = nm_strstrip_avoid_copy_a (10, str, &str4);
g_assert_cmpstr (str1, ==, s4);
g_assert (!str == !s4);
g_assert (!s4 || strlen (s4) <= strlen (str));
if (s4 && s4 == &str[strlen (str) - strlen (s4)]) {
g_assert (!str4);
g_assert (s3 == s4);
} else if (s4 && strlen (s4) >= 10) {
g_assert (str4);
g_assert (s4 == str4);
} else
g_assert (!str4);
if (!nm_streq0 (str1, str))
_do_strstrip_avoid_copy (str1);
}
static void
test_strstrip_avoid_copy (void)
{
_do_strstrip_avoid_copy (NULL);
_do_strstrip_avoid_copy ("");
_do_strstrip_avoid_copy (" ");
_do_strstrip_avoid_copy (" a ");
_do_strstrip_avoid_copy (" 012345678 ");
_do_strstrip_avoid_copy (" 0123456789 ");
_do_strstrip_avoid_copy (" 01234567890 ");
_do_strstrip_avoid_copy (" 012345678901 ");
}
/*****************************************************************************/
NMTST_DEFINE ();
int main (int argc, char **argv)
{
nmtst_init (&argc, &argv, TRUE);
g_test_add_func ("/general/test_monotonic_timestamp", test_monotonic_timestamp);
g_test_add_func ("/general/test_nmhash", test_nmhash);
g_test_add_func ("/general/test_nm_make_strv", test_make_strv);
g_test_add_func ("/general/test_nm_strdup_int", test_nm_strdup_int);
g_test_add_func ("/general/test_nm_strndup_a", test_nm_strndup_a);
g_test_add_func ("/general/test_nm_ip4_addr_is_localhost", test_nm_ip4_addr_is_localhost);
g_test_add_func ("/general/test_unaligned", test_unaligned);
g_test_add_func ("/general/test_strv_cmp", test_strv_cmp);
g_test_add_func ("/general/test_strstrip_avoid_copy", test_strstrip_avoid_copy);
return g_test_run ();
}
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