1 /* 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef TEST_FIELD_TRIAL_H_ 12 #define TEST_FIELD_TRIAL_H_ 13 14 #include <string> 15 16 #include "absl/strings/string_view.h" 17 18 namespace webrtc { 19 namespace test { 20 21 // This class is used to override field-trial configs within specific tests. 22 // After this class goes out of scope previous field trials will be restored. 23 class ScopedFieldTrials { 24 public: 25 explicit ScopedFieldTrials(absl::string_view config); 26 ScopedFieldTrials(const ScopedFieldTrials&) = delete; 27 ScopedFieldTrials& operator=(const ScopedFieldTrials&) = delete; 28 ~ScopedFieldTrials(); 29 30 private: 31 std::string current_field_trials_; 32 const char* previous_field_trials_; 33 }; 34 35 } // namespace test 36 } // namespace webrtc 37 38 #endif // TEST_FIELD_TRIAL_H_ 39