nuttx-apps/examples/usrsocktest/usrsocktest_chardev.c

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/****************************************************************************
* examples/usrsocktest/usrsocktest_chardev.c
* Character device node tests
*
* Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
* Authors: Roman Saveljev <roman.saveljev@haltian.com>
* Jussi Kivilinna <jussi.kivilinna@haltian.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <fcntl.h>
#include <errno.h>
#include "defines.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
static int us_fd;
static int us_fd_two;
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: char_dev test group setup
*
* Description:
* Setup function executed before each testcase in this test group
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
* Assumptions/Limitations:
* None
*
****************************************************************************/
TEST_SETUP(char_dev)
{
us_fd = -1;
us_fd_two = -1;
}
/****************************************************************************
* Name: char_dev test group teardown
*
* Description:
* Setup function executed after each testcase in this test group
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
* Assumptions/Limitations:
* None
*
****************************************************************************/
TEST_TEAR_DOWN(char_dev)
{
int ret;
if (us_fd >= 0)
{
ret = close(us_fd);
assert(ret >= 0);
}
if (us_fd_two >= 0)
{
ret = close(us_fd_two);
assert(ret >= 0);
}
}
/****************************************************************************
* Name: open_rw
*
* Description:
* Simple test for opening and closing usrsock node
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
* Assumptions/Limitations:
* None
*
****************************************************************************/
TEST(char_dev, open_rw)
{
int ret;
us_fd = open(USRSOCK_NODE, O_RDWR);
TEST_ASSERT_TRUE(us_fd >= 0);
ret = close(us_fd);
TEST_ASSERT_TRUE(ret >= 0);
us_fd = -1;
}
/****************************************************************************
* Name: reopen_rw
*
* Description:
* Repeated simple test for opening and closing usrsock node, reopen should
* work
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
* Assumptions/Limitations:
* None
*
****************************************************************************/
TEST(char_dev, reopen_rw)
{
int ret;
us_fd = open(USRSOCK_NODE, O_RDWR);
TEST_ASSERT_TRUE(us_fd >= 0);
ret = close(us_fd);
TEST_ASSERT_TRUE(ret >= 0);
us_fd = -1;
us_fd = open(USRSOCK_NODE, O_RDWR);
TEST_ASSERT_TRUE(us_fd >= 0);
ret = close(us_fd);
TEST_ASSERT_TRUE(ret >= 0);
us_fd = -1;
}
/****************************************************************************
* Name: no_multiple_open
*
* Description:
* No permission for multiple access,
* first user should be only user.
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
* Assumptions/Limitations:
* None
*
****************************************************************************/
TEST(char_dev, no_multiple_open)
{
us_fd = open(USRSOCK_NODE, O_RDWR);
TEST_ASSERT_TRUE(us_fd >= 0);
us_fd_two = open(USRSOCK_NODE, O_RDWR);
TEST_ASSERT_FALSE(us_fd_two >= 0);
TEST_ASSERT_EQUAL(EPERM, errno);
}
/****************************************************************************
* Public Functions
****************************************************************************/
TEST_GROUP(char_dev)
{
RUN_TEST_CASE(char_dev, open_rw);
RUN_TEST_CASE(char_dev, reopen_rw);
RUN_TEST_CASE(char_dev, no_multiple_open);
}