* apps/testing/testsuites/kernel/syscall/cases/memcmp_test.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <syslog.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include "SyscallTest.h"
* Pre-processor Definitions
****************************************************************************/
#define BSIZE 4096
#define LEN 100
* Private Functions
****************************************************************************/
* Name: TestNuttxSyscallFill
****************************************************************************/
static void test_nuttx_syscall_lfill(char *str, int len)
{
int i;
for (i = 0; i < len; i++)
*str++ = 'a';
}
* Private Functions
****************************************************************************/
* Name: test_nuttx_syscall_setup
****************************************************************************/
static void test_nuttx_syscall_setup(char *buf)
{
int i;
for (i = 0; i < BSIZE; i++)
buf[i] = 0;
return;
}
* Private Functions
****************************************************************************/
* Name: test_nuttx_syscall_verifymemcmp
****************************************************************************/
static void test_nuttx_syscall_verifymemcmp(char *p, char *q, int len)
{
test_nuttx_syscall_lfill(p, len);
test_nuttx_syscall_lfill(q, len);
assert_int_equal(memcmp(p, q, len), 0);
p[len - 1] = 0;
assert_true(memcmp(p, q, len) < 0);
p[len - 1] = 'a';
p[0] = 0;
assert_true(memcmp(p, q, len) < 0);
p[0] = 'a';
q[len - 1] = 0;
assert_true(memcmp(p, q, len) > 0);
q[len - 1] = 'a';
q[0] = 0;
assert_true(memcmp(p, q, len) > 0);
q[0] = 'a';
assert_int_equal(memcmp(p, q, len), 0);
}
* Pubilc Functions
****************************************************************************/
* Name: test_nuttx_syscall_memcmptest01
****************************************************************************/
void test_nuttx_syscall_memcmptest01(FAR void **state)
{
char *buf = NULL;
buf = malloc(BSIZE);
assert_non_null(buf);
test_nuttx_syscall_setup(buf);
test_nuttx_syscall_verifymemcmp(&buf[100], &buf[800], LEN);
test_nuttx_syscall_verifymemcmp(&buf[800], &buf[100], LEN);
free(buf);
}