1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <fcntl.h>
17#include <stdio.h>
18#include "test.h"
19
20const char *path = "/data/readtest.txt";
21
22/**
23 * @tc.name      : getchar_0100
24 * @tc.desc      : Verify that the characters in the file can be get
25 * @tc.level     : Level 0
26 */
27void getchar_0100(void)
28{
29    char str[] = "t";
30    int fd = open(path, O_RDWR | O_CREAT, TEST_MODE);
31    if (fd < 0) {
32        t_error("%s open failed\n", __func__);
33    }
34    ssize_t ret = write(fd, str, sizeof(str));
35    if (ret < 0) {
36        t_error("%s write failed\n", __func__);
37    }
38
39    FILE *fp = freopen(path, "r", stdin);
40    if (!fp) {
41        t_error("%s freopen failed\n", __func__);
42    }
43
44    char ch = getchar();
45    if (ch != 't') {
46        t_error("%s getchar failed\n", __func__);
47    }
48
49    close(fd);
50    remove(path);
51}
52
53int main(int argc, char *argv[])
54{
55    getchar_0100();
56    return t_status;
57}