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 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 41 TEST(sys_vfs, statfs) { 42 struct statfs sb; 43 ASSERT_EQ(0, statfs("/proc", &sb)); 44 Check(sb); 45 } 46 47 TEST(sys_vfs, statfs64) { 48 struct statfs64 sb; 49 ASSERT_EQ(0, statfs64("/proc", &sb)); 50 Check(sb); 51 } 52 53 TEST(sys_vfs, fstatfs) { 54 struct statfs sb; 55 int fd = open("/proc", O_RDONLY); 56 ASSERT_EQ(0, fstatfs(fd, &sb)); 57 close(fd); 58 Check(sb); 59 } 60 61 TEST(sys_vfs, fstatfs64) { 62 struct statfs64 sb; 63 int fd = open("/proc", O_RDONLY); 64 ASSERT_EQ(0, fstatfs64(fd, &sb)); 65 close(fd); 66 Check(sb); 67 } 68
