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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/test/test_file_util.h"
#include <windows.h>
#include <string>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/win/scoped_handle.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
class ScopedFileForTest {
public:
ScopedFileForTest(const FilePath& filename)
: long_path_(L"\\\\?\\" + filename.value()) {
win::ScopedHandle handle(::CreateFile(long_path_.c_str(), GENERIC_WRITE, 0,
nullptr, CREATE_NEW,
FILE_ATTRIBUTE_NORMAL, nullptr));
valid_ = handle.is_valid();
}
ScopedFileForTest(ScopedFileForTest&&) = delete;
ScopedFileForTest& operator=(ScopedFileForTest&&) = delete;
bool IsValid() const { return valid_; }
~ScopedFileForTest() {
if (valid_) {
::DeleteFile(long_path_.c_str());
}
}
private:
FilePath::StringType long_path_;
bool valid_;
};
} // namespace
TEST(TestFileUtil, EvictNonExistingFile) {
ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
FilePath path = temp_dir.GetPath().Append(FilePath(L"non_existing"));
ASSERT_FALSE(EvictFileFromSystemCache(path));
}
TEST(TestFileUtil, EvictFileWithShortName) {
ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
FilePath temp_file = temp_dir.GetPath().Append(FilePath(L"file_for_evict"));
ASSERT_TRUE(temp_file.value().length() < MAX_PATH);
ScopedFileForTest file(temp_file);
ASSERT_TRUE(file.IsValid());
ASSERT_TRUE(EvictFileFromSystemCache(temp_file));
}
TEST(TestFileUtil, EvictFileWithLongName) {
ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
// Create subdirectory with long name.
FilePath subdir =
temp_dir.GetPath().Append(FilePath(std::wstring(100, L'a')));
ASSERT_TRUE(subdir.value().length() < MAX_PATH);
ASSERT_TRUE(CreateDirectory(subdir));
// Create file with long name in subdirectory.
FilePath temp_file = subdir.Append(FilePath(std::wstring(200, L'b')));
ASSERT_TRUE(temp_file.value().length() > MAX_PATH);
ScopedFileForTest file(temp_file);
ASSERT_TRUE(file.IsValid());
ASSERT_TRUE(EvictFileFromSystemCache(temp_file));
}
TEST(TestFileUtil, GetTempDirForTesting) {
ASSERT_FALSE(GetTempDirForTesting().value().empty());
}
} // namespace base
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