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 <string.h>
19 #include "test.h"
20
21 const char *wrstring = "This is a test sample!";
22 const char *path = "test.txt";
23
24 /**
25 * @tc.name : getc_0100
26 * @tc.desc : Verify that the characters in the file can be get
27 * @tc.level : Level 0
28 */
getc_0100(void)29 void getc_0100(void)
30 {
31 FILE *fptr = fopen(path, "w+");
32 if (!fptr) {
33 t_error("%s fopen failed\n", __func__);
34 }
35
36 size_t ret = fwrite(wrstring, sizeof(char), strlen(wrstring), fptr);
37 if (ret < 0) {
38 t_error("%s fwrite failed\n", __func__);
39 }
40
41 int fret = fseek(fptr, 0, SEEK_SET);
42 if (fret != 0) {
43 t_error("%s fseek failed\n", __func__);
44 }
45 char ch = getc(fptr);
46 if (ch != 'T') {
47 t_error("%s getc failed\n", __func__);
48 }
49
50 fclose(fptr);
51 remove(path);
52 }
53
main(int argc, char *argv[])54 int main(int argc, char *argv[])
55 {
56 getc_0100();
57 return t_status;
58 }