Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 1 | // Copyright 2017 Google Inc. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | // Implements a fake filesystem, useful for tests. |
Guillaume Chatelet | 8e58ef0 | 2018-02-01 10:38:48 +0100 | [diff] [blame] | 16 | #ifndef CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_ |
| 17 | #define CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_ |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 18 | |
| 19 | #include <memory> |
| 20 | #include <string> |
| 21 | #include <unordered_map> |
| 22 | |
| 23 | #include "internal/filesystem.h" |
| 24 | |
| 25 | namespace cpu_features { |
| 26 | |
| 27 | class FakeFile { |
| 28 | public: |
| 29 | explicit FakeFile(int file_descriptor, const char* content); |
| 30 | ~FakeFile(); |
| 31 | |
| 32 | void Open(); |
| 33 | void Close(); |
| 34 | int Read(int fd, void* buf, size_t count); |
| 35 | |
| 36 | int GetFileDescriptor() const { return file_descriptor_; } |
| 37 | |
| 38 | private: |
| 39 | const int file_descriptor_; |
| 40 | const std::string content_; |
| 41 | bool opened_ = false; |
| 42 | size_t head_index_ = 0; |
| 43 | }; |
| 44 | |
| 45 | class FakeFilesystem { |
| 46 | public: |
| 47 | void Reset(); |
| 48 | FakeFile* CreateFile(const std::string& filename, const char* content); |
| 49 | FakeFile* FindFileOrDie(const int file_descriptor) const; |
| 50 | FakeFile* FindFileOrNull(const std::string& filename) const; |
| 51 | |
| 52 | private: |
Leonard Mosescu | bdb36d9 | 2019-07-03 05:57:19 -0700 | [diff] [blame] | 53 | int next_file_descriptor_ = 0; |
Guillaume Chatelet | 439d371 | 2018-02-01 10:03:09 +0100 | [diff] [blame] | 54 | std::unordered_map<std::string, std::unique_ptr<FakeFile>> files_; |
| 55 | }; |
| 56 | |
| 57 | FakeFilesystem& GetEmptyFilesystem(); |
| 58 | |
| 59 | } // namespace cpu_features |
| 60 | |
Guillaume Chatelet | 8e58ef0 | 2018-02-01 10:38:48 +0100 | [diff] [blame] | 61 | #endif // CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_ |