mirror of
https://github.com/google/cpu_features.git
synced 2025-11-03 22:40:17 +01:00
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// Copyright 2017 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// Implements a fake filesystem, useful for tests.
|
|
#ifndef CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
|
|
#define CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include <unordered_map>
|
|
|
|
#include "internal/filesystem.h"
|
|
|
|
namespace cpu_features {
|
|
|
|
class FakeFile {
|
|
public:
|
|
explicit FakeFile(int file_descriptor, const char* content);
|
|
~FakeFile();
|
|
|
|
void Open();
|
|
void Close();
|
|
int Read(int fd, void* buf, size_t count);
|
|
|
|
int GetFileDescriptor() const { return file_descriptor_; }
|
|
|
|
private:
|
|
const int file_descriptor_;
|
|
const std::string content_;
|
|
bool opened_ = false;
|
|
size_t head_index_ = 0;
|
|
};
|
|
|
|
class FakeFilesystem {
|
|
public:
|
|
void Reset();
|
|
FakeFile* CreateFile(const std::string& filename, const char* content);
|
|
FakeFile* FindFileOrDie(const int file_descriptor) const;
|
|
FakeFile* FindFileOrNull(const std::string& filename) const;
|
|
|
|
private:
|
|
int next_file_descriptor_ = 0;
|
|
std::unordered_map<std::string, std::unique_ptr<FakeFile>> files_;
|
|
};
|
|
|
|
FakeFilesystem& GetEmptyFilesystem();
|
|
|
|
} // namespace cpu_features
|
|
|
|
#endif // CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
|