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- // Copyright (c) 2012 The Chromium 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 "butil/file_util.h"
- #include "butil/files/file.h"
- #include "butil/files/scoped_temp_dir.h"
- #include "butil/time/time.h"
- #include <gtest/gtest.h>
- using butil::File;
- using butil::FilePath;
- TEST(FileTest, Create) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("create_file_1");
- {
- // Don't create a File at all.
- File file;
- EXPECT_FALSE(file.IsValid());
- EXPECT_EQ(butil::File::FILE_ERROR_FAILED, file.error_details());
- File file2(butil::File::FILE_ERROR_TOO_MANY_OPENED);
- EXPECT_FALSE(file2.IsValid());
- EXPECT_EQ(butil::File::FILE_ERROR_TOO_MANY_OPENED, file2.error_details());
- }
- {
- // Open a file that doesn't exist.
- File file(file_path, butil::File::FLAG_OPEN | butil::File::FLAG_READ);
- EXPECT_FALSE(file.IsValid());
- EXPECT_EQ(butil::File::FILE_ERROR_NOT_FOUND, file.error_details());
- }
- {
- // Open or create a file.
- File file(file_path, butil::File::FLAG_OPEN_ALWAYS | butil::File::FLAG_READ);
- EXPECT_TRUE(file.IsValid());
- EXPECT_TRUE(file.created());
- EXPECT_EQ(butil::File::FILE_OK, file.error_details());
- }
- {
- // Open an existing file.
- File file(file_path, butil::File::FLAG_OPEN | butil::File::FLAG_READ);
- EXPECT_TRUE(file.IsValid());
- EXPECT_FALSE(file.created());
- EXPECT_EQ(butil::File::FILE_OK, file.error_details());
- // This time verify closing the file.
- file.Close();
- EXPECT_FALSE(file.IsValid());
- }
- {
- // Open an existing file through Initialize
- File file;
- file.Initialize(file_path, butil::File::FLAG_OPEN | butil::File::FLAG_READ);
- EXPECT_TRUE(file.IsValid());
- EXPECT_FALSE(file.created());
- EXPECT_EQ(butil::File::FILE_OK, file.error_details());
- // This time verify closing the file.
- file.Close();
- EXPECT_FALSE(file.IsValid());
- }
- {
- // Create a file that exists.
- File file(file_path, butil::File::FLAG_CREATE | butil::File::FLAG_READ);
- EXPECT_FALSE(file.IsValid());
- EXPECT_FALSE(file.created());
- EXPECT_EQ(butil::File::FILE_ERROR_EXISTS, file.error_details());
- }
- {
- // Create or overwrite a file.
- File file(file_path,
- butil::File::FLAG_CREATE_ALWAYS | butil::File::FLAG_WRITE);
- EXPECT_TRUE(file.IsValid());
- EXPECT_TRUE(file.created());
- EXPECT_EQ(butil::File::FILE_OK, file.error_details());
- }
- {
- // Create a delete-on-close file.
- file_path = temp_dir.path().AppendASCII("create_file_2");
- File file(file_path,
- butil::File::FLAG_OPEN_ALWAYS | butil::File::FLAG_READ |
- butil::File::FLAG_DELETE_ON_CLOSE);
- EXPECT_TRUE(file.IsValid());
- EXPECT_TRUE(file.created());
- EXPECT_EQ(butil::File::FILE_OK, file.error_details());
- }
- EXPECT_FALSE(butil::PathExists(file_path));
- }
- TEST(FileTest, Async) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("create_file");
- {
- File file(file_path, butil::File::FLAG_OPEN_ALWAYS | butil::File::FLAG_ASYNC);
- EXPECT_TRUE(file.IsValid());
- EXPECT_TRUE(file.async());
- }
- {
- File file(file_path, butil::File::FLAG_OPEN_ALWAYS);
- EXPECT_TRUE(file.IsValid());
- EXPECT_FALSE(file.async());
- }
- }
- TEST(FileTest, DeleteOpenFile) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("create_file_1");
- // Create a file.
- File file(file_path,
- butil::File::FLAG_OPEN_ALWAYS | butil::File::FLAG_READ |
- butil::File::FLAG_SHARE_DELETE);
- EXPECT_TRUE(file.IsValid());
- EXPECT_TRUE(file.created());
- EXPECT_EQ(butil::File::FILE_OK, file.error_details());
- // Open an existing file and mark it as delete on close.
- File same_file(file_path,
- butil::File::FLAG_OPEN | butil::File::FLAG_DELETE_ON_CLOSE |
- butil::File::FLAG_READ);
- EXPECT_TRUE(file.IsValid());
- EXPECT_FALSE(same_file.created());
- EXPECT_EQ(butil::File::FILE_OK, same_file.error_details());
- // Close both handles and check that the file is gone.
- file.Close();
- same_file.Close();
- EXPECT_FALSE(butil::PathExists(file_path));
- }
- TEST(FileTest, ReadWrite) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("read_write_file");
- File file(file_path,
- butil::File::FLAG_CREATE | butil::File::FLAG_READ |
- butil::File::FLAG_WRITE);
- ASSERT_TRUE(file.IsValid());
- char data_to_write[] = "test";
- const int kTestDataSize = 4;
- // Write 0 bytes to the file.
- int bytes_written = file.Write(0, data_to_write, 0);
- EXPECT_EQ(0, bytes_written);
- // Write "test" to the file.
- bytes_written = file.Write(0, data_to_write, kTestDataSize);
- EXPECT_EQ(kTestDataSize, bytes_written);
- // Read from EOF.
- char data_read_1[32];
- int bytes_read = file.Read(kTestDataSize, data_read_1, kTestDataSize);
- EXPECT_EQ(0, bytes_read);
- // Read from somewhere in the middle of the file.
- const int kPartialReadOffset = 1;
- bytes_read = file.Read(kPartialReadOffset, data_read_1, kTestDataSize);
- EXPECT_EQ(kTestDataSize - kPartialReadOffset, bytes_read);
- for (int i = 0; i < bytes_read; i++)
- EXPECT_EQ(data_to_write[i + kPartialReadOffset], data_read_1[i]);
- // Read 0 bytes.
- bytes_read = file.Read(0, data_read_1, 0);
- EXPECT_EQ(0, bytes_read);
- // Read the entire file.
- bytes_read = file.Read(0, data_read_1, kTestDataSize);
- EXPECT_EQ(kTestDataSize, bytes_read);
- for (int i = 0; i < bytes_read; i++)
- EXPECT_EQ(data_to_write[i], data_read_1[i]);
- // Read again, but using the trivial native wrapper.
- bytes_read = file.ReadNoBestEffort(0, data_read_1, kTestDataSize);
- EXPECT_LE(bytes_read, kTestDataSize);
- for (int i = 0; i < bytes_read; i++)
- EXPECT_EQ(data_to_write[i], data_read_1[i]);
- // Write past the end of the file.
- const int kOffsetBeyondEndOfFile = 10;
- const int kPartialWriteLength = 2;
- bytes_written = file.Write(kOffsetBeyondEndOfFile,
- data_to_write, kPartialWriteLength);
- EXPECT_EQ(kPartialWriteLength, bytes_written);
- // Make sure the file was extended.
- int64_t file_size = 0;
- EXPECT_TRUE(GetFileSize(file_path, &file_size));
- EXPECT_EQ(kOffsetBeyondEndOfFile + kPartialWriteLength, file_size);
- // Make sure the file was zero-padded.
- char data_read_2[32];
- bytes_read = file.Read(0, data_read_2, static_cast<int>(file_size));
- EXPECT_EQ(file_size, bytes_read);
- for (int i = 0; i < kTestDataSize; i++)
- EXPECT_EQ(data_to_write[i], data_read_2[i]);
- for (int i = kTestDataSize; i < kOffsetBeyondEndOfFile; i++)
- EXPECT_EQ(0, data_read_2[i]);
- for (int i = kOffsetBeyondEndOfFile; i < file_size; i++)
- EXPECT_EQ(data_to_write[i - kOffsetBeyondEndOfFile], data_read_2[i]);
- }
- TEST(FileTest, Append) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("append_file");
- File file(file_path, butil::File::FLAG_CREATE | butil::File::FLAG_APPEND);
- ASSERT_TRUE(file.IsValid());
- char data_to_write[] = "test";
- const int kTestDataSize = 4;
- // Write 0 bytes to the file.
- int bytes_written = file.Write(0, data_to_write, 0);
- EXPECT_EQ(0, bytes_written);
- // Write "test" to the file.
- bytes_written = file.Write(0, data_to_write, kTestDataSize);
- EXPECT_EQ(kTestDataSize, bytes_written);
- file.Close();
- File file2(file_path,
- butil::File::FLAG_OPEN | butil::File::FLAG_READ |
- butil::File::FLAG_APPEND);
- ASSERT_TRUE(file2.IsValid());
- // Test passing the file around.
- file = file2.Pass();
- EXPECT_FALSE(file2.IsValid());
- ASSERT_TRUE(file.IsValid());
- char append_data_to_write[] = "78";
- const int kAppendDataSize = 2;
- // Append "78" to the file.
- bytes_written = file.Write(0, append_data_to_write, kAppendDataSize);
- EXPECT_EQ(kAppendDataSize, bytes_written);
- // Read the entire file.
- char data_read_1[32];
- int bytes_read = file.Read(0, data_read_1,
- kTestDataSize + kAppendDataSize);
- EXPECT_EQ(kTestDataSize + kAppendDataSize, bytes_read);
- for (int i = 0; i < kTestDataSize; i++)
- EXPECT_EQ(data_to_write[i], data_read_1[i]);
- for (int i = 0; i < kAppendDataSize; i++)
- EXPECT_EQ(append_data_to_write[i], data_read_1[kTestDataSize + i]);
- }
- TEST(FileTest, Length) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("truncate_file");
- File file(file_path,
- butil::File::FLAG_CREATE | butil::File::FLAG_READ |
- butil::File::FLAG_WRITE);
- ASSERT_TRUE(file.IsValid());
- EXPECT_EQ(0, file.GetLength());
- // Write "test" to the file.
- char data_to_write[] = "test";
- int kTestDataSize = 4;
- int bytes_written = file.Write(0, data_to_write, kTestDataSize);
- EXPECT_EQ(kTestDataSize, bytes_written);
- // Extend the file.
- const int kExtendedFileLength = 10;
- int64_t file_size = 0;
- EXPECT_TRUE(file.SetLength(kExtendedFileLength));
- EXPECT_EQ(kExtendedFileLength, file.GetLength());
- EXPECT_TRUE(GetFileSize(file_path, &file_size));
- EXPECT_EQ(kExtendedFileLength, file_size);
- // Make sure the file was zero-padded.
- char data_read[32];
- int bytes_read = file.Read(0, data_read, static_cast<int>(file_size));
- EXPECT_EQ(file_size, bytes_read);
- for (int i = 0; i < kTestDataSize; i++)
- EXPECT_EQ(data_to_write[i], data_read[i]);
- for (int i = kTestDataSize; i < file_size; i++)
- EXPECT_EQ(0, data_read[i]);
- // Truncate the file.
- const int kTruncatedFileLength = 2;
- EXPECT_TRUE(file.SetLength(kTruncatedFileLength));
- EXPECT_EQ(kTruncatedFileLength, file.GetLength());
- EXPECT_TRUE(GetFileSize(file_path, &file_size));
- EXPECT_EQ(kTruncatedFileLength, file_size);
- // Make sure the file was truncated.
- bytes_read = file.Read(0, data_read, kTestDataSize);
- EXPECT_EQ(file_size, bytes_read);
- for (int i = 0; i < file_size; i++)
- EXPECT_EQ(data_to_write[i], data_read[i]);
- }
- // Flakily fails: http://crbug.com/86494
- #if defined(OS_ANDROID)
- TEST(FileTest, TouchGetInfo) {
- #else
- TEST(FileTest, DISABLED_TouchGetInfo) {
- #endif
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- File file(temp_dir.path().AppendASCII("touch_get_info_file"),
- butil::File::FLAG_CREATE | butil::File::FLAG_WRITE |
- butil::File::FLAG_WRITE_ATTRIBUTES);
- ASSERT_TRUE(file.IsValid());
- // Get info for a newly created file.
- butil::File::Info info;
- EXPECT_TRUE(file.GetInfo(&info));
- // Add 2 seconds to account for possible rounding errors on
- // filesystems that use a 1s or 2s timestamp granularity.
- butil::Time now = butil::Time::Now() + butil::TimeDelta::FromSeconds(2);
- EXPECT_EQ(0, info.size);
- EXPECT_FALSE(info.is_directory);
- EXPECT_FALSE(info.is_symbolic_link);
- EXPECT_LE(info.last_accessed.ToInternalValue(), now.ToInternalValue());
- EXPECT_LE(info.last_modified.ToInternalValue(), now.ToInternalValue());
- EXPECT_LE(info.creation_time.ToInternalValue(), now.ToInternalValue());
- butil::Time creation_time = info.creation_time;
- // Write "test" to the file.
- char data[] = "test";
- const int kTestDataSize = 4;
- int bytes_written = file.Write(0, data, kTestDataSize);
- EXPECT_EQ(kTestDataSize, bytes_written);
- // Change the last_accessed and last_modified dates.
- // It's best to add values that are multiples of 2 (in seconds)
- // to the current last_accessed and last_modified times, because
- // FATxx uses a 2s timestamp granularity.
- butil::Time new_last_accessed =
- info.last_accessed + butil::TimeDelta::FromSeconds(234);
- butil::Time new_last_modified =
- info.last_modified + butil::TimeDelta::FromMinutes(567);
- EXPECT_TRUE(file.SetTimes(new_last_accessed, new_last_modified));
- // Make sure the file info was updated accordingly.
- EXPECT_TRUE(file.GetInfo(&info));
- EXPECT_EQ(info.size, kTestDataSize);
- EXPECT_FALSE(info.is_directory);
- EXPECT_FALSE(info.is_symbolic_link);
- // ext2/ext3 and HPS/HPS+ seem to have a timestamp granularity of 1s.
- #if defined(OS_POSIX)
- EXPECT_EQ(info.last_accessed.ToTimeVal().tv_sec,
- new_last_accessed.ToTimeVal().tv_sec);
- EXPECT_EQ(info.last_modified.ToTimeVal().tv_sec,
- new_last_modified.ToTimeVal().tv_sec);
- #else
- EXPECT_EQ(info.last_accessed.ToInternalValue(),
- new_last_accessed.ToInternalValue());
- EXPECT_EQ(info.last_modified.ToInternalValue(),
- new_last_modified.ToInternalValue());
- #endif
- EXPECT_EQ(info.creation_time.ToInternalValue(),
- creation_time.ToInternalValue());
- }
- TEST(FileTest, ReadAtCurrentPosition) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("read_at_current_position");
- File file(file_path,
- butil::File::FLAG_CREATE | butil::File::FLAG_READ |
- butil::File::FLAG_WRITE);
- EXPECT_TRUE(file.IsValid());
- const char kData[] = "test";
- const int kDataSize = sizeof(kData) - 1;
- EXPECT_EQ(kDataSize, file.Write(0, kData, kDataSize));
- EXPECT_EQ(0, file.Seek(butil::File::FROM_BEGIN, 0));
- char buffer[kDataSize];
- int first_chunk_size = kDataSize / 2;
- EXPECT_EQ(first_chunk_size, file.ReadAtCurrentPos(buffer, first_chunk_size));
- EXPECT_EQ(kDataSize - first_chunk_size,
- file.ReadAtCurrentPos(buffer + first_chunk_size,
- kDataSize - first_chunk_size));
- EXPECT_EQ(std::string(buffer, buffer + kDataSize), std::string(kData));
- }
- TEST(FileTest, WriteAtCurrentPosition) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("write_at_current_position");
- File file(file_path,
- butil::File::FLAG_CREATE | butil::File::FLAG_READ |
- butil::File::FLAG_WRITE);
- EXPECT_TRUE(file.IsValid());
- const char kData[] = "test";
- const int kDataSize = sizeof(kData) - 1;
- int first_chunk_size = kDataSize / 2;
- EXPECT_EQ(first_chunk_size, file.WriteAtCurrentPos(kData, first_chunk_size));
- EXPECT_EQ(kDataSize - first_chunk_size,
- file.WriteAtCurrentPos(kData + first_chunk_size,
- kDataSize - first_chunk_size));
- char buffer[kDataSize];
- EXPECT_EQ(kDataSize, file.Read(0, buffer, kDataSize));
- EXPECT_EQ(std::string(buffer, buffer + kDataSize), std::string(kData));
- }
- TEST(FileTest, Seek) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath file_path = temp_dir.path().AppendASCII("seek_file");
- File file(file_path,
- butil::File::FLAG_CREATE | butil::File::FLAG_READ |
- butil::File::FLAG_WRITE);
- ASSERT_TRUE(file.IsValid());
- const int64_t kOffset = 10;
- EXPECT_EQ(kOffset, file.Seek(butil::File::FROM_BEGIN, kOffset));
- EXPECT_EQ(2 * kOffset, file.Seek(butil::File::FROM_CURRENT, kOffset));
- EXPECT_EQ(kOffset, file.Seek(butil::File::FROM_CURRENT, -kOffset));
- EXPECT_TRUE(file.SetLength(kOffset * 2));
- EXPECT_EQ(kOffset, file.Seek(butil::File::FROM_END, -kOffset));
- }
- #if defined(OS_WIN)
- TEST(FileTest, GetInfoForDirectory) {
- butil::ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- FilePath empty_dir = temp_dir.path().Append(FILE_PATH_LITERAL("gpfi_test"));
- ASSERT_TRUE(CreateDirectory(empty_dir));
- butil::File dir(
- ::CreateFile(empty_dir.value().c_str(),
- FILE_ALL_ACCESS,
- FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
- NULL,
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS, // Needed to open a directory.
- NULL));
- ASSERT_TRUE(dir.IsValid());
- butil::File::Info info;
- EXPECT_TRUE(dir.GetInfo(&info));
- EXPECT_TRUE(info.is_directory);
- EXPECT_FALSE(info.is_symbolic_link);
- EXPECT_EQ(0, info.size);
- }
- #endif // defined(OS_WIN)
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