1 // Copyright 2012 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_TEST_SCOPED_PATH_OVERRIDE_H_ 6 #define BASE_TEST_SCOPED_PATH_OVERRIDE_H_ 7 8 #include "base/files/scoped_temp_dir.h" 9 #include "third_party/abseil-cpp/absl/types/optional.h" 10 11 namespace base { 12 13 class FilePath; 14 15 // Sets a path override on construction, and removes it when the object goes out 16 // of scope. This class is intended to be used by tests that need to override 17 // paths to ensure their overrides are properly handled and reverted when the 18 // scope of the test is left. 19 class ScopedPathOverride { 20 public: 21 // Contructor that initializes the override to a scoped temp directory. 22 explicit ScopedPathOverride(int key); 23 24 // Constructor that would use a path provided by the user. 25 ScopedPathOverride(int key, const FilePath& dir); 26 27 // See PathService::OverrideAndCreateIfNeeded. 28 ScopedPathOverride(int key, 29 const FilePath& path, 30 bool is_absolute, 31 bool create); 32 33 ScopedPathOverride(const ScopedPathOverride&) = delete; 34 ScopedPathOverride& operator=(const ScopedPathOverride&) = delete; 35 36 ~ScopedPathOverride(); 37 38 private: 39 // Used for saving original_override_ when an override already exists. 40 void SaveOriginal(); 41 42 int key_; 43 ScopedTempDir temp_dir_; 44 absl::optional<FilePath> original_override_; 45 }; 46 47 } // namespace base 48 49 #endif // BASE_TEST_SCOPED_PATH_OVERRIDE_H_ 50