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 <errno.h>
17 #include <stdio.h>
18 #include <string.h>
19 #include "filepath_util.h"
20
21 const char *str = "Hello";
22
23 /**
24 * @tc.name : setlinebuf_0100
25 * @tc.desc : Set file stream to linear buffer
26 * @tc.level : Level 0
27 */
setlinebuf_0100(void)28 void setlinebuf_0100(void)
29 {
30 char path[PATH_MAX] = {0};
31 FILE_ABSOLUTE_PATH(STR_FILE_TXT, path);
32 FILE *f = fopen(path, "w+");
33 char buffer[BUFSIZ];
34 errno = 0;
35 setlinebuf(f);
36 if (errno != 0) {
37 t_error("%s failed: errno = %d\n", __func__, errno);
38 }
39
40 fputs(str, f);
41 fclose(f);
42 f = fopen(path, "r");
43
44 memset(buffer, 0, sizeof(buffer));
45 fread(buffer, sizeof(buffer), 1, f);
46
47 if (strcmp(buffer, str)) {
48 t_error("%s failed: setlinebuf. buf = %s\n", __func__, buffer);
49 }
50 fclose(f);
51 remove(path);
52 }
53
54 /**
55 * @tc.name : setlinebuf_0200
56 * @tc.desc : Output to console
57 * @tc.level : Level 2
58 */
setlinebuf_0200(void)59 void setlinebuf_0200(void)
60 {
61 errno = 0;
62 setlinebuf(stdout);
63 if (errno != 0) {
64 t_error("%s failed: errno = %d\n", __func__, errno);
65 }
66
67 printf("test");
68 sleep(1);
69 }
70
main(int argc,char * argv[])71 int main(int argc, char *argv[])
72 {
73 setlinebuf_0100();
74 setlinebuf_0200();
75 return t_status;
76 }