| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <fcntl.h> |
| #include <sys/types.h> |
| |
| #include <string> |
| #include <vector> |
| |
| #include "filesystem/scoped_temp_dir.h" |
| #include "filesystem/unique_fd.h" |
| #include "gtest/gtest.h" |
| |
| namespace filesystem { |
| |
| TEST(FileDescriptor, WriteAndRead) { |
| files::ScopedTempDir temp_dir; |
| std::string path; |
| ASSERT_TRUE(temp_dir.NewTempFile(&path)); |
| |
| fxl::UniqueFD fd(open(path.c_str(), O_RDWR)); |
| ASSERT_TRUE(fd.is_valid()); |
| |
| std::string string = "one, two, three"; |
| EXPECT_TRUE(WriteFileDescriptor(fd.get(), string.data(), string.size())); |
| EXPECT_EQ(0, lseek(fd.get(), 0, SEEK_SET)); |
| |
| std::vector<char> buffer; |
| buffer.resize(1024); |
| ssize_t read = ReadFileDescriptor(fd.get(), buffer.data(), 1024); |
| EXPECT_EQ(static_cast<ssize_t>(string.size()), read); |
| EXPECT_EQ(string, buffer.data()); |
| } |
| |
| } // namespace filesystem |