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 <stdlib.h>
18 #include <unistd.h>
19 #include "functionalext.h"
20
21 #define TEST_BUFFER_SIZE 64
22
rm_file(const char *name)23 void rm_file(const char *name)
24 {
25 if (access(name, F_OK) == 0) {
26 unlink(name);
27 }
28 }
29
30 /**
31 * @tc.name : pwrite_0100
32 * @tc.desc : Write to a file descriptor at a given offset
33 * @tc.level : Level 0
34 */
pwrite_0100(void)35 void pwrite_0100(void)
36 {
37 const char *txt = "This is pwrite_0100 test.";
38 char buffer[TEST_BUFFER_SIZE];
39 memset(buffer, 0x0, sizeof(buffer));
40
41 int fd = open("pwrite_0100", O_CREAT | O_RDWR, TEST_MODE);
42 EXPECT_NE("pwrite_0100", fd, ERREXPECT);
43 if (fd == -1) {
44 return;
45 }
46 size_t cnt = pwrite(fd, txt, strlen(txt), 0);
47 EXPECT_EQ("pwrite_0100", cnt, strlen(txt));
48
49 lseek(fd, 0, SEEK_SET);
50 cnt = pread(fd, buffer, TEST_BUFFER_SIZE, 0);
51 EXPECT_EQ("pwrite_0100", cnt, strlen(txt));
52 EXPECT_STREQ("pwrite_0100", txt, buffer);
53 close(fd);
54 rm_file("pwrite_0100");
55 }
56
57 /**
58 * @tc.name : pwrite_0200
59 * @tc.desc : Provide illegal parameter data, write data to the open file
60 * @tc.level : Level 2
61 */
pwrite_0200(void)62 void pwrite_0200(void)
63 {
64 const char *txt = "This is pwrite_0200 test.";
65 size_t cnt = pwrite(-1, txt, strlen(txt), 0);
66 EXPECT_EQ("pwrite_0200", cnt, (size_t)(-1));
67
68 int fd = open("pwrite_0200", O_CREAT | O_RDWR, TEST_MODE);
69 EXPECT_NE("pwrite_0200", fd, -1);
70 if (fd == -1) {
71 return;
72 }
73
74 cnt = pwrite(fd, txt, 0, 0);
75 EXPECT_EQ("pwrite_0200", cnt, CMPFLAG);
76
77 cnt = pwrite(fd, NULL, 0, 0);
78 EXPECT_EQ("pwrite_0200", cnt, CMPFLAG);
79 close(fd);
80 rm_file("pwrite_0200");
81 }
82
main(void)83 int main(void)
84 {
85 pwrite_0100();
86 pwrite_0200();
87 return t_status;
88 }
89