1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include <sys/vfs.h>
20
21 #include <sys/types.h>
22 #include <sys/stat.h>
23 #include <fcntl.h>
24
25 #include <string>
26
Check(StatFsT & sb)27 template <typename StatFsT> void Check(StatFsT& sb) {
28 EXPECT_EQ(4096, static_cast<int>(sb.f_bsize));
29 EXPECT_EQ(0U, sb.f_bfree);
30 EXPECT_EQ(0U, sb.f_ffree);
31 EXPECT_EQ(0, sb.f_fsid.__val[0]);
32 EXPECT_EQ(0, sb.f_fsid.__val[1]);
33 EXPECT_EQ(255, static_cast<int>(sb.f_namelen));
34
35 // The kernel sets a private bit to indicate that f_flags is valid.
36 // This flag is not supposed to be exposed to libc clients.
37 static const uint32_t ST_VALID = 0x0020;
38 EXPECT_TRUE((sb.f_flags & ST_VALID) == 0) << sb.f_flags;
39 }
40
TEST(sys_vfs,statfs)41 TEST(sys_vfs, statfs) {
42 struct statfs sb;
43 ASSERT_EQ(0, statfs("/proc", &sb));
44 Check(sb);
45 }
46
TEST(sys_vfs,statfs_failure)47 TEST(sys_vfs, statfs_failure) {
48 struct statfs sb;
49 errno = 0;
50 ASSERT_EQ(-1, statfs("/does-not-exist", &sb));
51 ASSERT_EQ(ENOENT, errno);
52 }
53
TEST(sys_vfs,statfs64)54 TEST(sys_vfs, statfs64) {
55 struct statfs64 sb;
56 ASSERT_EQ(0, statfs64("/proc", &sb));
57 Check(sb);
58 }
59
TEST(sys_vfs,statfs64_failure)60 TEST(sys_vfs, statfs64_failure) {
61 struct statfs64 sb;
62 errno = 0;
63 ASSERT_EQ(-1, statfs64("/does-not-exist", &sb));
64 ASSERT_EQ(ENOENT, errno);
65 }
66
TEST(sys_vfs,fstatfs)67 TEST(sys_vfs, fstatfs) {
68 struct statfs sb;
69 int fd = open("/proc", O_RDONLY);
70 ASSERT_EQ(0, fstatfs(fd, &sb));
71 close(fd);
72 Check(sb);
73 }
74
TEST(sys_vfs,fstatfs_failure)75 TEST(sys_vfs, fstatfs_failure) {
76 struct statfs sb;
77 errno = 0;
78 ASSERT_EQ(-1, fstatfs(-1, &sb));
79 ASSERT_EQ(EBADF, errno);
80 }
81
TEST(sys_vfs,fstatfs64)82 TEST(sys_vfs, fstatfs64) {
83 struct statfs64 sb;
84 int fd = open("/proc", O_RDONLY);
85 ASSERT_EQ(0, fstatfs64(fd, &sb));
86 close(fd);
87 Check(sb);
88 }
89
TEST(sys_vfs,fstatfs64_failure)90 TEST(sys_vfs, fstatfs64_failure) {
91 struct statfs sb;
92 errno = 0;
93 ASSERT_EQ(-1, fstatfs(-1, &sb));
94 ASSERT_EQ(EBADF, errno);
95 }
96