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 <map> 15 #include <string> 16 17 namespace webrtc { 18 namespace test { 19 // TODO(jonasolsson): remove once all internal usages are gone. 20 void ValidateFieldTrialsStringOrDie(const std::string&); 21 22 // This class is used to override field-trial configs within specific tests. 23 // After this class goes out of scope previous field trials will be restored. 24 class ScopedFieldTrials { 25 public: 26 explicit ScopedFieldTrials(const std::string& config); 27 ScopedFieldTrials(const ScopedFieldTrials&) = delete; 28 ScopedFieldTrials& operator=(const ScopedFieldTrials&) = delete; 29 ~ScopedFieldTrials(); 30 31 private: 32 std::string current_field_trials_; 33 const char* previous_field_trials_; 34 }; 35 36 } // namespace test 37 } // namespace webrtc 38 39 #endif // TEST_FIELD_TRIAL_H_ 40