weston/tests/string-test.c
Bryce Harrington 82b9f2baec Add safe_strtoint() helper
Adds a safe strtol helper function, modeled loosely after Wayland
scanner's strtouint.  This encapsulates the various quirks of strtol
behavior, and streamlines the interface to just handling base-10 numbers
with a simple true/false error indicator and a uint32_t return by
reference.

Test cases are loosely derived from an earlier patch by Imran Zaman.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2016-08-06 18:19:19 -07:00

88 lines
2.3 KiB
C

/*
* Copyright © 2016 Samsung Electronics Co., Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <stdlib.h>
#include <stdbool.h>
#include <stdio.h>
#include <assert.h>
#include "shared/string-helpers.h"
#include "weston-test-client-helper.h"
TEST(strtol_conversions)
{
bool ret;
int32_t val = -1;
char *str = NULL;
str = ""; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == false);
assert(val == -1);
str = "."; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == false);
assert(val == -1);
str = "42"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == true);
assert(val == 42);
str = "-42"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == true);
assert(val == -42);
str = "0042"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == true);
assert(val == 42);
str = "x42"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == false);
assert(val == -1);
str = "42x"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == false);
assert(val == -1);
str = "0x42424242"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == false);
assert(val == -1);
str = "424748364789L"; val = -1;
ret = safe_strtoint(str, &val);
assert(ret == false);
assert(val == -1);
}