1 /*
2  * Copyright (C) 2013 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/statvfs.h>
20 
21 #include <sys/types.h>
22 #include <sys/stat.h>
23 #include <fcntl.h>
24 
25 #include <string>
26 
Check(StatVfsT & sb)27 template <typename StatVfsT> void Check(StatVfsT& sb) {
28   EXPECT_EQ(4096U, sb.f_bsize);
29   EXPECT_EQ(0U, sb.f_bfree);
30   EXPECT_EQ(0U, sb.f_ffree);
31   EXPECT_EQ(0U, sb.f_fsid);
32   EXPECT_EQ(255U, sb.f_namemax);
33 
34   // The kernel sets a private bit to indicate that f_flags is valid.
35   // This flag is not supposed to be exposed to libc clients.
36   static const uint32_t ST_VALID = 0x0020;
37   EXPECT_TRUE((sb.f_flag & ST_VALID) == 0) << sb.f_flag;
38 }
39 
TEST(sys_statvfs,statvfs)40 TEST(sys_statvfs, statvfs) {
41   struct statvfs sb;
42   ASSERT_EQ(0, statvfs("/proc", &sb));
43   Check(sb);
44 }
45 
TEST(sys_statvfs,statvfs64)46 TEST(sys_statvfs, statvfs64) {
47   struct statvfs64 sb;
48   ASSERT_EQ(0, statvfs64("/proc", &sb));
49   Check(sb);
50 }
51 
TEST(sys_statvfs,fstatvfs)52 TEST(sys_statvfs, fstatvfs) {
53   struct statvfs sb;
54   int fd = open("/proc", O_RDONLY);
55   ASSERT_EQ(0, fstatvfs(fd, &sb));
56   close(fd);
57   Check(sb);
58 }
59 
TEST(sys_statvfs,fstatvfs64)60 TEST(sys_statvfs, fstatvfs64) {
61   struct statvfs64 sb;
62   int fd = open("/proc", O_RDONLY);
63   ASSERT_EQ(0, fstatvfs64(fd, &sb));
64   close(fd);
65   Check(sb);
66 }
67