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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <sys/vfs.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string>
template <typename StatFsT> void Check(StatFsT& sb) {
EXPECT_EQ(4096, static_cast<int>(sb.f_bsize));
EXPECT_EQ(0U, sb.f_bfree);
EXPECT_EQ(0U, sb.f_ffree);
EXPECT_EQ(0, sb.f_fsid.__val[0]);
EXPECT_EQ(0, sb.f_fsid.__val[1]);
EXPECT_EQ(255, static_cast<int>(sb.f_namelen));
// The kernel sets a private bit to indicate that f_flags is valid.
// This flag is not supposed to be exposed to libc clients.
static const uint32_t ST_VALID = 0x0020;
EXPECT_TRUE((sb.f_flags & ST_VALID) == 0) << sb.f_flags;
}
TEST(sys_vfs, statfs) {
struct statfs sb;
ASSERT_EQ(0, statfs("/proc", &sb));
Check(sb);
}
TEST(sys_vfs, statfs_failure) {
struct statfs sb;
errno = 0;
ASSERT_EQ(-1, statfs("/does-not-exist", &sb));
ASSERT_EQ(ENOENT, errno);
}
TEST(sys_vfs, statfs64) {
struct statfs64 sb;
ASSERT_EQ(0, statfs64("/proc", &sb));
Check(sb);
}
TEST(sys_vfs, statfs64_failure) {
struct statfs64 sb;
errno = 0;
ASSERT_EQ(-1, statfs64("/does-not-exist", &sb));
ASSERT_EQ(ENOENT, errno);
}
TEST(sys_vfs, fstatfs) {
struct statfs sb;
int fd = open("/proc", O_RDONLY);
ASSERT_EQ(0, fstatfs(fd, &sb));
close(fd);
Check(sb);
}
TEST(sys_vfs, fstatfs_failure) {
struct statfs sb;
errno = 0;
ASSERT_EQ(-1, fstatfs(-1, &sb));
ASSERT_EQ(EBADF, errno);
}
TEST(sys_vfs, fstatfs64) {
struct statfs64 sb;
int fd = open("/proc", O_RDONLY);
ASSERT_EQ(0, fstatfs64(fd, &sb));
close(fd);
Check(sb);
}
TEST(sys_vfs, fstatfs64_failure) {
struct statfs sb;
errno = 0;
ASSERT_EQ(-1, fstatfs(-1, &sb));
ASSERT_EQ(EBADF, errno);
}