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