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Diffstat (limited to 'test/syscalls/linux/fsync.cc')
-rw-r--r-- | test/syscalls/linux/fsync.cc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/test/syscalls/linux/fsync.cc b/test/syscalls/linux/fsync.cc new file mode 100644 index 000000000..e7e057f06 --- /dev/null +++ b/test/syscalls/linux/fsync.cc @@ -0,0 +1,58 @@ +// Copyright 2018 The gVisor Authors. +// +// 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 <fcntl.h> +#include <stdio.h> +#include <unistd.h> + +#include <string> + +#include "gtest/gtest.h" +#include "test/util/file_descriptor.h" +#include "test/util/temp_path.h" +#include "test/util/test_util.h" + +namespace gvisor { +namespace testing { + +namespace { + +TEST(FsyncTest, TempFileSucceeds) { + auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile()); + auto fd = ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDWR, 0666)); + const std::string data = "some data to sync"; + EXPECT_THAT(write(fd.get(), data.c_str(), data.size()), + SyscallSucceedsWithValue(data.size())); + EXPECT_THAT(fsync(fd.get()), SyscallSucceeds()); +} + +TEST(FsyncTest, TempDirSucceeds) { + auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir()); + auto fd = ASSERT_NO_ERRNO_AND_VALUE(Open(dir.path(), O_RDONLY | O_DIRECTORY)); + EXPECT_THAT(fsync(fd.get()), SyscallSucceeds()); +} + +TEST(FsyncTest, CannotFsyncOnUnopenedFd) { + auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile()); + int fd; + ASSERT_THAT(fd = open(file.path().c_str(), O_RDONLY), SyscallSucceeds()); + ASSERT_THAT(close(fd), SyscallSucceeds()); + + // fd is now invalid. + EXPECT_THAT(fsync(fd), SyscallFailsWithErrno(EBADF)); +} +} // namespace + +} // namespace testing +} // namespace gvisor |