59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string>
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#include "gtest/gtest.h"
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#include "test/util/file_descriptor.h"
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#include "test/util/temp_path.h"
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#include "test/util/test_util.h"
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namespace gvisor {
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namespace testing {
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namespace {
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TEST(FsyncTest, TempFileSucceeds) {
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auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
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auto fd = ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDWR, 0666));
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const std::string data = "some data to sync";
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EXPECT_THAT(write(fd.get(), data.c_str(), data.size()),
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SyscallSucceedsWithValue(data.size()));
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EXPECT_THAT(fsync(fd.get()), SyscallSucceeds());
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}
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TEST(FsyncTest, TempDirSucceeds) {
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auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
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auto fd = ASSERT_NO_ERRNO_AND_VALUE(Open(dir.path(), O_RDONLY | O_DIRECTORY));
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EXPECT_THAT(fsync(fd.get()), SyscallSucceeds());
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}
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TEST(FsyncTest, CannotFsyncOnUnopenedFd) {
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auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
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int fd;
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ASSERT_THAT(fd = open(file.path().c_str(), O_RDONLY), SyscallSucceeds());
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ASSERT_THAT(close(fd), SyscallSucceeds());
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// fd is now invalid.
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EXPECT_THAT(fsync(fd), SyscallFailsWithErrno(EBADF));
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}
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} // namespace
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} // namespace testing
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} // namespace gvisor
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