content/browser/fileapi/native_file_util_unittest.cc - chromium/src.git - Git at Google

 // Copyright 2014 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 <set>

 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "storage/browser/fileapi/native_file_util.h"
 #include "testing/gtest/include/gtest/gtest.h"

 using storage::FileSystemFileUtil;
 using storage::FileSystemOperation;
 using storage::NativeFileUtil;

 namespace content {

 class NativeFileUtilTest : public testing::Test {
  public:
   NativeFileUtilTest() {}

   void SetUp() override { ASSERT_TRUE(data_dir_.CreateUniqueTempDir()); }

  protected:
   base::FilePath Path() {
     return data_dir_.path();
   }

   base::FilePath Path(const char* file_name) {
     return data_dir_.path().AppendASCII(file_name);
   }

   bool FileExists(const base::FilePath& path) {
     return base::PathExists(path) &&
            !base::DirectoryExists(path);
   }

   int64 GetSize(const base::FilePath& path) {
     base::File::Info info;
     base::GetFileInfo(path, &info);
     return info.size;
   }

  private:
   base::ScopedTempDir data_dir_;

   DISALLOW_COPY_AND_ASSIGN(NativeFileUtilTest);
 };

 TEST_F(NativeFileUtilTest, CreateCloseAndDeleteFile) {
   base::FilePath file_name = Path("test_file");
   int flags = base::File::FLAG_WRITE | base::File::FLAG_ASYNC;
   base::File file =
       NativeFileUtil::CreateOrOpen(file_name, base::File::FLAG_CREATE | flags);
   ASSERT_TRUE(file.IsValid());
   ASSERT_TRUE(file.created());

   EXPECT_TRUE(base::PathExists(file_name));
   EXPECT_TRUE(NativeFileUtil::PathExists(file_name));
   EXPECT_EQ(0, GetSize(file_name));
   file.Close();

   file = NativeFileUtil::CreateOrOpen(file_name, base::File::FLAG_OPEN | flags);
   ASSERT_TRUE(file.IsValid());
   ASSERT_FALSE(file.created());
   file.Close();

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::DeleteFile(file_name));
   EXPECT_FALSE(base::PathExists(file_name));
   EXPECT_FALSE(NativeFileUtil::PathExists(file_name));
 }

 TEST_F(NativeFileUtilTest, EnsureFileExists) {
   base::FilePath file_name = Path("foobar");
   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(file_name, &created));
   ASSERT_TRUE(created);

   EXPECT_TRUE(FileExists(file_name));
   EXPECT_EQ(0, GetSize(file_name));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(file_name, &created));
   EXPECT_FALSE(created);
 }

 TEST_F(NativeFileUtilTest, CreateAndDeleteDirectory) {
   base::FilePath dir_name = Path("test_dir");
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CreateDirectory(dir_name,
                                             false /* exclusive */,
                                             false /* recursive */));

   EXPECT_TRUE(NativeFileUtil::DirectoryExists(dir_name));
   EXPECT_TRUE(base::DirectoryExists(dir_name));

   ASSERT_EQ(base::File::FILE_ERROR_EXISTS,
             NativeFileUtil::CreateDirectory(dir_name,
                                             true /* exclusive */,
                                             false /* recursive */));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::DeleteDirectory(dir_name));
   EXPECT_FALSE(base::DirectoryExists(dir_name));
   EXPECT_FALSE(NativeFileUtil::DirectoryExists(dir_name));
 }

 TEST_F(NativeFileUtilTest, TouchFileAndGetFileInfo) {
   base::FilePath file_name = Path("test_file");
   base::File::Info native_info;
   ASSERT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::GetFileInfo(file_name, &native_info));

   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(file_name, &created));
   ASSERT_TRUE(created);

   base::File::Info info;
   ASSERT_TRUE(base::GetFileInfo(file_name, &info));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::GetFileInfo(file_name, &native_info));
   ASSERT_EQ(info.size, native_info.size);
   ASSERT_EQ(info.is_directory, native_info.is_directory);
   ASSERT_EQ(info.is_symbolic_link, native_info.is_symbolic_link);
   ASSERT_EQ(info.last_modified, native_info.last_modified);
   ASSERT_EQ(info.last_accessed, native_info.last_accessed);
   ASSERT_EQ(info.creation_time, native_info.creation_time);

   const base::Time new_accessed =
       info.last_accessed + base::TimeDelta::FromHours(10);
   const base::Time new_modified =
       info.last_modified + base::TimeDelta::FromHours(5);

   EXPECT_EQ(base::File::FILE_OK,
             NativeFileUtil::Touch(file_name,
                                   new_accessed, new_modified));

   ASSERT_TRUE(base::GetFileInfo(file_name, &info));
   EXPECT_EQ(new_accessed, info.last_accessed);
   EXPECT_EQ(new_modified, info.last_modified);
 }

 TEST_F(NativeFileUtilTest, CreateFileEnumerator) {
   base::FilePath path_1 = Path("dir1");
   base::FilePath path_2 = Path("file1");
   base::FilePath path_11 = Path("dir1").AppendASCII("file11");
   base::FilePath path_12 = Path("dir1").AppendASCII("dir12");
   base::FilePath path_121 =
       Path("dir1").AppendASCII("dir12").AppendASCII("file121");
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CreateDirectory(path_1, false, false));
   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(path_2, &created));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(path_11, &created));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CreateDirectory(path_12, false, false));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(path_121, &created));

   {
     scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> enumerator =
         NativeFileUtil::CreateFileEnumerator(Path(), false);
     std::set<base::FilePath> set;
     set.insert(path_1);
     set.insert(path_2);
     for (base::FilePath path = enumerator->Next(); !path.empty();
          path = enumerator->Next())
       EXPECT_EQ(1U, set.erase(path));
     EXPECT_TRUE(set.empty());
   }

   {
     scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> enumerator =
         NativeFileUtil::CreateFileEnumerator(Path(), true);
         std::set<base::FilePath> set;
     set.insert(path_1);
     set.insert(path_2);
     set.insert(path_11);
     set.insert(path_12);
     set.insert(path_121);
     for (base::FilePath path = enumerator->Next(); !path.empty();
          path = enumerator->Next())
       EXPECT_EQ(1U, set.erase(path));
     EXPECT_TRUE(set.empty());
   }
 }

 TEST_F(NativeFileUtilTest, Truncate) {
   base::FilePath file_name = Path("truncated");
   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(file_name, &created));
   ASSERT_TRUE(created);

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::Truncate(file_name, 1020));

   EXPECT_TRUE(FileExists(file_name));
   EXPECT_EQ(1020, GetSize(file_name));
 }

 TEST_F(NativeFileUtilTest, CopyFile) {
   base::FilePath from_file = Path("fromfile");
   base::FilePath to_file1 = Path("tofile1");
   base::FilePath to_file2 = Path("tofile2");
   const NativeFileUtil::CopyOrMoveMode nosync = NativeFileUtil::COPY_NOSYNC;
   const NativeFileUtil::CopyOrMoveMode sync = NativeFileUtil::COPY_SYNC;
   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(from_file, &created));
   ASSERT_TRUE(created);

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::Truncate(from_file, 1020));

   EXPECT_TRUE(FileExists(from_file));
   EXPECT_EQ(1020, GetSize(from_file));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_file1, FileSystemOperation::OPTION_NONE, nosync));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_file2, FileSystemOperation::OPTION_NONE, sync));

   EXPECT_TRUE(FileExists(from_file));
   EXPECT_EQ(1020, GetSize(from_file));
   EXPECT_TRUE(FileExists(to_file1));
   EXPECT_EQ(1020, GetSize(to_file1));
   EXPECT_TRUE(FileExists(to_file2));
   EXPECT_EQ(1020, GetSize(to_file2));

   base::FilePath dir = Path("dir");
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CreateDirectory(dir, false, false));
   ASSERT_TRUE(base::DirectoryExists(dir));
   base::FilePath to_dir_file = dir.AppendASCII("file");
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_dir_file,
                 FileSystemOperation::OPTION_NONE, nosync));
   EXPECT_TRUE(FileExists(to_dir_file));
   EXPECT_EQ(1020, GetSize(to_dir_file));

   // Following tests are error checking.
   // Source doesn't exist.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::CopyOrMoveFile(
                 Path("nonexists"), Path("file"),
                 FileSystemOperation::OPTION_NONE, nosync));

   // Source is not a file.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_A_FILE,
             NativeFileUtil::CopyOrMoveFile(
                 dir, Path("file"), FileSystemOperation::OPTION_NONE, nosync));
   // Destination is not a file.
   EXPECT_EQ(base::File::FILE_ERROR_INVALID_OPERATION,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, dir, FileSystemOperation::OPTION_NONE, nosync));
   // Destination's parent doesn't exist.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, Path("nodir").AppendASCII("file"),
                 FileSystemOperation::OPTION_NONE, nosync));
   // Destination's parent is a file.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, Path("tofile1").AppendASCII("file"),
                 FileSystemOperation::OPTION_NONE, nosync));
 }

 TEST_F(NativeFileUtilTest, MoveFile) {
   base::FilePath from_file = Path("fromfile");
   base::FilePath to_file = Path("tofile");
   const NativeFileUtil::CopyOrMoveMode move = NativeFileUtil::MOVE;
   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(from_file, &created));
   ASSERT_TRUE(created);

   ASSERT_EQ(base::File::FILE_OK, NativeFileUtil::Truncate(from_file, 1020));

   EXPECT_TRUE(FileExists(from_file));
   EXPECT_EQ(1020, GetSize(from_file));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_file, FileSystemOperation::OPTION_NONE, move));

   EXPECT_FALSE(FileExists(from_file));
   EXPECT_TRUE(FileExists(to_file));
   EXPECT_EQ(1020, GetSize(to_file));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(from_file, &created));
   ASSERT_TRUE(FileExists(from_file));
   ASSERT_EQ(base::File::FILE_OK, NativeFileUtil::Truncate(from_file, 1020));

   base::FilePath dir = Path("dir");
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CreateDirectory(dir, false, false));
   ASSERT_TRUE(base::DirectoryExists(dir));
   base::FilePath to_dir_file = dir.AppendASCII("file");
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_dir_file,
                 FileSystemOperation::OPTION_NONE, move));
   EXPECT_FALSE(FileExists(from_file));
   EXPECT_TRUE(FileExists(to_dir_file));
   EXPECT_EQ(1020, GetSize(to_dir_file));

   // Following is error checking.
   // Source doesn't exist.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::CopyOrMoveFile(
                 Path("nonexists"), Path("file"),
                 FileSystemOperation::OPTION_NONE, move));

   // Source is not a file.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_A_FILE,
             NativeFileUtil::CopyOrMoveFile(
                 dir, Path("file"), FileSystemOperation::OPTION_NONE, move));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(from_file, &created));
   ASSERT_TRUE(FileExists(from_file));
   // Destination is not a file.
   EXPECT_EQ(base::File::FILE_ERROR_INVALID_OPERATION,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, dir, FileSystemOperation::OPTION_NONE, move));

   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(from_file, &created));
   ASSERT_TRUE(FileExists(from_file));
   // Destination's parent doesn't exist.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, Path("nodir").AppendASCII("file"),
                 FileSystemOperation::OPTION_NONE, move));
   // Destination's parent is a file.
   EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, Path("tofile1").AppendASCII("file"),
                 FileSystemOperation::OPTION_NONE, move));
 }

 TEST_F(NativeFileUtilTest, PreserveLastModified) {
   base::FilePath from_file = Path("fromfile");
   base::FilePath to_file1 = Path("tofile1");
   base::FilePath to_file2 = Path("tofile2");
   base::FilePath to_file3 = Path("tofile3");
   bool created = false;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::EnsureFileExists(from_file, &created));
   ASSERT_TRUE(created);
   EXPECT_TRUE(FileExists(from_file));

   base::File::Info file_info1;
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::GetFileInfo(from_file, &file_info1));

   // Test for copy (nosync).
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_file1,
                 FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED,
                 NativeFileUtil::COPY_NOSYNC));

   base::File::Info file_info2;
   ASSERT_TRUE(FileExists(to_file1));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::GetFileInfo(to_file1, &file_info2));
   EXPECT_EQ(file_info1.last_modified, file_info2.last_modified);

   // Test for copy (sync).
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_file2,
                 FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED,
                 NativeFileUtil::COPY_SYNC));

   ASSERT_TRUE(FileExists(to_file2));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::GetFileInfo(to_file1, &file_info2));
   EXPECT_EQ(file_info1.last_modified, file_info2.last_modified);

   // Test for move.
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::CopyOrMoveFile(
                 from_file, to_file3,
                 FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED,
                 NativeFileUtil::MOVE));

   ASSERT_TRUE(FileExists(to_file3));
   ASSERT_EQ(base::File::FILE_OK,
             NativeFileUtil::GetFileInfo(to_file2, &file_info2));
   EXPECT_EQ(file_info1.last_modified, file_info2.last_modified);
 }

 }  // namespace content
	// Copyright 2014 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 <set>

	#include "base/files/file.h"
	#include "base/files/file_path.h"
	#include "base/files/file_util.h"
	#include "base/files/scoped_temp_dir.h"
	#include "storage/browser/fileapi/native_file_util.h"
	#include "testing/gtest/include/gtest/gtest.h"

	using storage::FileSystemFileUtil;
	using storage::FileSystemOperation;
	using storage::NativeFileUtil;

	namespace content {

	class NativeFileUtilTest : public testing::Test {
	public:
	NativeFileUtilTest() {}

	void SetUp() override { ASSERT_TRUE(data_dir_.CreateUniqueTempDir()); }

	protected:
	base::FilePath Path() {
	return data_dir_.path();
	}

	base::FilePath Path(const char* file_name) {
	return data_dir_.path().AppendASCII(file_name);
	}

	bool FileExists(const base::FilePath& path) {
	return base::PathExists(path) &&
	!base::DirectoryExists(path);
	}

	int64 GetSize(const base::FilePath& path) {
	base::File::Info info;
	base::GetFileInfo(path, &info);
	return info.size;
	}

	private:
	base::ScopedTempDir data_dir_;

	DISALLOW_COPY_AND_ASSIGN(NativeFileUtilTest);
	};

	TEST_F(NativeFileUtilTest, CreateCloseAndDeleteFile) {
	base::FilePath file_name = Path("test_file");
	int flags = base::File::FLAG_WRITE \| base::File::FLAG_ASYNC;
	base::File file =
	NativeFileUtil::CreateOrOpen(file_name, base::File::FLAG_CREATE \| flags);
	ASSERT_TRUE(file.IsValid());
	ASSERT_TRUE(file.created());

	EXPECT_TRUE(base::PathExists(file_name));
	EXPECT_TRUE(NativeFileUtil::PathExists(file_name));
	EXPECT_EQ(0, GetSize(file_name));
	file.Close();

	file = NativeFileUtil::CreateOrOpen(file_name, base::File::FLAG_OPEN \| flags);
	ASSERT_TRUE(file.IsValid());
	ASSERT_FALSE(file.created());
	file.Close();

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::DeleteFile(file_name));
	EXPECT_FALSE(base::PathExists(file_name));
	EXPECT_FALSE(NativeFileUtil::PathExists(file_name));
	}

	TEST_F(NativeFileUtilTest, EnsureFileExists) {
	base::FilePath file_name = Path("foobar");
	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(file_name, &created));
	ASSERT_TRUE(created);

	EXPECT_TRUE(FileExists(file_name));
	EXPECT_EQ(0, GetSize(file_name));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(file_name, &created));
	EXPECT_FALSE(created);
	}

	TEST_F(NativeFileUtilTest, CreateAndDeleteDirectory) {
	base::FilePath dir_name = Path("test_dir");
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CreateDirectory(dir_name,
	false /* exclusive */,
	false /* recursive */));

	EXPECT_TRUE(NativeFileUtil::DirectoryExists(dir_name));
	EXPECT_TRUE(base::DirectoryExists(dir_name));

	ASSERT_EQ(base::File::FILE_ERROR_EXISTS,
	NativeFileUtil::CreateDirectory(dir_name,
	true /* exclusive */,
	false /* recursive */));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::DeleteDirectory(dir_name));
	EXPECT_FALSE(base::DirectoryExists(dir_name));
	EXPECT_FALSE(NativeFileUtil::DirectoryExists(dir_name));
	}

	TEST_F(NativeFileUtilTest, TouchFileAndGetFileInfo) {
	base::FilePath file_name = Path("test_file");
	base::File::Info native_info;
	ASSERT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::GetFileInfo(file_name, &native_info));

	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(file_name, &created));
	ASSERT_TRUE(created);

	base::File::Info info;
	ASSERT_TRUE(base::GetFileInfo(file_name, &info));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::GetFileInfo(file_name, &native_info));
	ASSERT_EQ(info.size, native_info.size);
	ASSERT_EQ(info.is_directory, native_info.is_directory);
	ASSERT_EQ(info.is_symbolic_link, native_info.is_symbolic_link);
	ASSERT_EQ(info.last_modified, native_info.last_modified);
	ASSERT_EQ(info.last_accessed, native_info.last_accessed);
	ASSERT_EQ(info.creation_time, native_info.creation_time);

	const base::Time new_accessed =
	info.last_accessed + base::TimeDelta::FromHours(10);
	const base::Time new_modified =
	info.last_modified + base::TimeDelta::FromHours(5);

	EXPECT_EQ(base::File::FILE_OK,
	NativeFileUtil::Touch(file_name,
	new_accessed, new_modified));

	ASSERT_TRUE(base::GetFileInfo(file_name, &info));
	EXPECT_EQ(new_accessed, info.last_accessed);
	EXPECT_EQ(new_modified, info.last_modified);
	}

	TEST_F(NativeFileUtilTest, CreateFileEnumerator) {
	base::FilePath path_1 = Path("dir1");
	base::FilePath path_2 = Path("file1");
	base::FilePath path_11 = Path("dir1").AppendASCII("file11");
	base::FilePath path_12 = Path("dir1").AppendASCII("dir12");
	base::FilePath path_121 =
	Path("dir1").AppendASCII("dir12").AppendASCII("file121");
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CreateDirectory(path_1, false, false));
	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(path_2, &created));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(path_11, &created));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CreateDirectory(path_12, false, false));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(path_121, &created));

	{
	scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> enumerator =
	NativeFileUtil::CreateFileEnumerator(Path(), false);
	std::set<base::FilePath> set;
	set.insert(path_1);
	set.insert(path_2);
	for (base::FilePath path = enumerator->Next(); !path.empty();
	path = enumerator->Next())
	EXPECT_EQ(1U, set.erase(path));
	EXPECT_TRUE(set.empty());
	}

	{
	scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> enumerator =
	NativeFileUtil::CreateFileEnumerator(Path(), true);
	std::set<base::FilePath> set;
	set.insert(path_1);
	set.insert(path_2);
	set.insert(path_11);
	set.insert(path_12);
	set.insert(path_121);
	for (base::FilePath path = enumerator->Next(); !path.empty();
	path = enumerator->Next())
	EXPECT_EQ(1U, set.erase(path));
	EXPECT_TRUE(set.empty());
	}
	}

	TEST_F(NativeFileUtilTest, Truncate) {
	base::FilePath file_name = Path("truncated");
	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(file_name, &created));
	ASSERT_TRUE(created);

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::Truncate(file_name, 1020));

	EXPECT_TRUE(FileExists(file_name));
	EXPECT_EQ(1020, GetSize(file_name));
	}

	TEST_F(NativeFileUtilTest, CopyFile) {
	base::FilePath from_file = Path("fromfile");
	base::FilePath to_file1 = Path("tofile1");
	base::FilePath to_file2 = Path("tofile2");
	const NativeFileUtil::CopyOrMoveMode nosync = NativeFileUtil::COPY_NOSYNC;
	const NativeFileUtil::CopyOrMoveMode sync = NativeFileUtil::COPY_SYNC;
	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(from_file, &created));
	ASSERT_TRUE(created);

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::Truncate(from_file, 1020));

	EXPECT_TRUE(FileExists(from_file));
	EXPECT_EQ(1020, GetSize(from_file));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_file1, FileSystemOperation::OPTION_NONE, nosync));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_file2, FileSystemOperation::OPTION_NONE, sync));

	EXPECT_TRUE(FileExists(from_file));
	EXPECT_EQ(1020, GetSize(from_file));
	EXPECT_TRUE(FileExists(to_file1));
	EXPECT_EQ(1020, GetSize(to_file1));
	EXPECT_TRUE(FileExists(to_file2));
	EXPECT_EQ(1020, GetSize(to_file2));

	base::FilePath dir = Path("dir");
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CreateDirectory(dir, false, false));
	ASSERT_TRUE(base::DirectoryExists(dir));
	base::FilePath to_dir_file = dir.AppendASCII("file");
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_dir_file,
	FileSystemOperation::OPTION_NONE, nosync));
	EXPECT_TRUE(FileExists(to_dir_file));
	EXPECT_EQ(1020, GetSize(to_dir_file));

	// Following tests are error checking.
	// Source doesn't exist.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::CopyOrMoveFile(
	Path("nonexists"), Path("file"),
	FileSystemOperation::OPTION_NONE, nosync));

	// Source is not a file.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_A_FILE,
	NativeFileUtil::CopyOrMoveFile(
	dir, Path("file"), FileSystemOperation::OPTION_NONE, nosync));
	// Destination is not a file.
	EXPECT_EQ(base::File::FILE_ERROR_INVALID_OPERATION,
	NativeFileUtil::CopyOrMoveFile(
	from_file, dir, FileSystemOperation::OPTION_NONE, nosync));
	// Destination's parent doesn't exist.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::CopyOrMoveFile(
	from_file, Path("nodir").AppendASCII("file"),
	FileSystemOperation::OPTION_NONE, nosync));
	// Destination's parent is a file.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::CopyOrMoveFile(
	from_file, Path("tofile1").AppendASCII("file"),
	FileSystemOperation::OPTION_NONE, nosync));
	}

	TEST_F(NativeFileUtilTest, MoveFile) {
	base::FilePath from_file = Path("fromfile");
	base::FilePath to_file = Path("tofile");
	const NativeFileUtil::CopyOrMoveMode move = NativeFileUtil::MOVE;
	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(from_file, &created));
	ASSERT_TRUE(created);

	ASSERT_EQ(base::File::FILE_OK, NativeFileUtil::Truncate(from_file, 1020));

	EXPECT_TRUE(FileExists(from_file));
	EXPECT_EQ(1020, GetSize(from_file));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_file, FileSystemOperation::OPTION_NONE, move));

	EXPECT_FALSE(FileExists(from_file));
	EXPECT_TRUE(FileExists(to_file));
	EXPECT_EQ(1020, GetSize(to_file));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(from_file, &created));
	ASSERT_TRUE(FileExists(from_file));
	ASSERT_EQ(base::File::FILE_OK, NativeFileUtil::Truncate(from_file, 1020));

	base::FilePath dir = Path("dir");
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CreateDirectory(dir, false, false));
	ASSERT_TRUE(base::DirectoryExists(dir));
	base::FilePath to_dir_file = dir.AppendASCII("file");
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_dir_file,
	FileSystemOperation::OPTION_NONE, move));
	EXPECT_FALSE(FileExists(from_file));
	EXPECT_TRUE(FileExists(to_dir_file));
	EXPECT_EQ(1020, GetSize(to_dir_file));

	// Following is error checking.
	// Source doesn't exist.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::CopyOrMoveFile(
	Path("nonexists"), Path("file"),
	FileSystemOperation::OPTION_NONE, move));

	// Source is not a file.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_A_FILE,
	NativeFileUtil::CopyOrMoveFile(
	dir, Path("file"), FileSystemOperation::OPTION_NONE, move));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(from_file, &created));
	ASSERT_TRUE(FileExists(from_file));
	// Destination is not a file.
	EXPECT_EQ(base::File::FILE_ERROR_INVALID_OPERATION,
	NativeFileUtil::CopyOrMoveFile(
	from_file, dir, FileSystemOperation::OPTION_NONE, move));

	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(from_file, &created));
	ASSERT_TRUE(FileExists(from_file));
	// Destination's parent doesn't exist.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::CopyOrMoveFile(
	from_file, Path("nodir").AppendASCII("file"),
	FileSystemOperation::OPTION_NONE, move));
	// Destination's parent is a file.
	EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND,
	NativeFileUtil::CopyOrMoveFile(
	from_file, Path("tofile1").AppendASCII("file"),
	FileSystemOperation::OPTION_NONE, move));
	}

	TEST_F(NativeFileUtilTest, PreserveLastModified) {
	base::FilePath from_file = Path("fromfile");
	base::FilePath to_file1 = Path("tofile1");
	base::FilePath to_file2 = Path("tofile2");
	base::FilePath to_file3 = Path("tofile3");
	bool created = false;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::EnsureFileExists(from_file, &created));
	ASSERT_TRUE(created);
	EXPECT_TRUE(FileExists(from_file));

	base::File::Info file_info1;
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::GetFileInfo(from_file, &file_info1));

	// Test for copy (nosync).
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_file1,
	FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED,
	NativeFileUtil::COPY_NOSYNC));

	base::File::Info file_info2;
	ASSERT_TRUE(FileExists(to_file1));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::GetFileInfo(to_file1, &file_info2));
	EXPECT_EQ(file_info1.last_modified, file_info2.last_modified);

	// Test for copy (sync).
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_file2,
	FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED,
	NativeFileUtil::COPY_SYNC));

	ASSERT_TRUE(FileExists(to_file2));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::GetFileInfo(to_file1, &file_info2));
	EXPECT_EQ(file_info1.last_modified, file_info2.last_modified);

	// Test for move.
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::CopyOrMoveFile(
	from_file, to_file3,
	FileSystemOperation::OPTION_PRESERVE_LAST_MODIFIED,
	NativeFileUtil::MOVE));

	ASSERT_TRUE(FileExists(to_file3));
	ASSERT_EQ(base::File::FILE_OK,
	NativeFileUtil::GetFileInfo(to_file2, &file_info2));
	EXPECT_EQ(file_info1.last_modified, file_info2.last_modified);
	}

	} // namespace content