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100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/****************************************************************************
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* apps/testing/testsuites/kernel/fs/cases/fs_pread_test.c
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* Copyright (C) 2020 Xiaomi Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <setjmp.h>
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#include <cmocka.h>
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#include <stdio.h>
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#include "fstest.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define TEST_FILE "pread_file"
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#define BUF_SIZE 4
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: test_nuttx_fs_pread01
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****************************************************************************/
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void test_nuttx_fs_pread01(FAR void **state)
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{
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int fd;
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struct fs_testsuites_state_s *test_state;
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test_state = (struct fs_testsuites_state_s *)*state;
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/* malloc memory */
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char *buf = malloc(BUF_SIZE * sizeof(char));
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assert_non_null(buf);
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test_state->ptr = buf;
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/* open file */
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fd = open(TEST_FILE, O_RDWR | O_CREAT, 0777);
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assert_int_not_equal(fd, -1);
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test_state->fd1 = fd;
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/* do write */
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int ret = write(fd, "ABCD", BUF_SIZE);
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assert_int_in_range(ret, 1, 4);
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/* reset file pos use fd */
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lseek(fd, 0, SEEK_SET);
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/* set memory */
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memset(buf, '\0', BUF_SIZE);
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/* do pread */
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pread(fd, buf, 2, 2);
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assert_int_equal(strncmp(buf, "CD", 2), 0);
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/* set memory */
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memset(buf, '\0', BUF_SIZE);
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/* the pread do not change file pointer */
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pread(fd, buf, 3, 1);
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assert_int_equal(strncmp(buf, "BCD", 3), 0);
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}
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