tests-devfs.c
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/*
* Copyright (C) 2016 Eistec AB
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @{
*
* @file
* @brief Unittests for DevFS
*
* @author Joakim Nohlgård <joakim.nohlgard@eistec.se>
*/
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "fs/devfs.h"
#include "embUnit/embUnit.h"
#include "tests-devfs.h"
static int _mock_open(vfs_file_t *filp, const char *name, int flags, mode_t mode, const char *abs_path);
static ssize_t _mock_read(vfs_file_t *filp, void *dest, size_t nbytes);
static ssize_t _mock_write(vfs_file_t *filp, const void *src, size_t nbytes);
static volatile int _mock_open_calls = 0;
static volatile int _mock_read_calls = 0;
static volatile int _mock_write_calls = 0;
static int _mock_private_data;
static const vfs_file_ops_t _mock_devfs_ops = {
.open = _mock_open,
.read = _mock_read,
.write = _mock_write,
};
static int _mock_private_data_tag = 4321;
static devfs_t _mock_devfs_node = {
.path = "/mock0",
.f_op = &_mock_devfs_ops,
.private_data = &_mock_private_data_tag,
};
static vfs_mount_t _test_devfs_mount = {
.fs = &devfs_file_system,
.mount_point = "/test",
.private_data = &_mock_private_data,
};
static int _mock_open(vfs_file_t *filp, const char *name, int flags, mode_t mode, const char *abs_path)
{
(void) name;
(void) flags;
(void) mode;
(void) abs_path;
if (filp->private_data.ptr != &_mock_private_data_tag) {
return -4321;
}
int *np = filp->mp->private_data;
++(*np);
++_mock_open_calls;
return 0;
}
static ssize_t _mock_read(vfs_file_t *filp, void *dest, size_t nbytes)
{
(void) dest;
(void) nbytes;
if (filp->private_data.ptr != &_mock_private_data_tag) {
return -4321;
}
int *np = filp->mp->private_data;
++(*np);
++_mock_read_calls;
return 0;
}
static ssize_t _mock_write(vfs_file_t *filp, const void *src, size_t nbytes)
{
(void) src;
(void) nbytes;
if (filp->private_data.ptr != &_mock_private_data_tag) {
return -4321;
}
int *np = filp->mp->private_data;
++(*np);
++_mock_write_calls;
return 0;
}
static void test_devfs_register(void)
{
int res = devfs_register(NULL);
TEST_ASSERT(res < 0);
res = devfs_register(&_mock_devfs_node);
TEST_ASSERT(res == 0);
res = devfs_register(&_mock_devfs_node);
TEST_ASSERT(res < 0);
res = devfs_unregister(&_mock_devfs_node);
TEST_ASSERT(res == 0);
res = devfs_unregister(&_mock_devfs_node);
TEST_ASSERT(res < 0);
}
static void test_devfs_mount_open(void)
{
_mock_private_data = 12345;
int res;
res = vfs_mount(&_test_devfs_mount);
TEST_ASSERT_EQUAL_INT(0, res);
TEST_ASSERT_EQUAL_INT(_mock_private_data, 12345);
res = devfs_register(&_mock_devfs_node);
TEST_ASSERT_EQUAL_INT(0, res);
int count = _mock_open_calls;
int fd = vfs_open("/test/mock0", O_RDWR, 0);
TEST_ASSERT(fd >= 0);
TEST_ASSERT_EQUAL_INT(count + 1, _mock_open_calls);
TEST_ASSERT_EQUAL_INT(_mock_private_data, 12346);
res = vfs_close(fd);
TEST_ASSERT_EQUAL_INT(0, res);
res = devfs_unregister(&_mock_devfs_node);
TEST_ASSERT_EQUAL_INT(0, res);
res = vfs_umount(&_test_devfs_mount);
TEST_ASSERT_EQUAL_INT(0, res);
}
Test *tests_devfs_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_devfs_register),
new_TestFixture(test_devfs_mount_open),
};
EMB_UNIT_TESTCALLER(devfs_tests, NULL, NULL, fixtures);
return (Test *)&devfs_tests;
}
void tests_devfs(void)
{
TESTS_RUN(tests_devfs_tests());
}
/** @} */