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 #include "test/field_trial.h" 12 13 #include <string> 14 15 #include "absl/strings/string_view.h" 16 #include "rtc_base/checks.h" 17 #include "system_wrappers/include/field_trial.h" 18 19 namespace webrtc { 20 namespace test { 21 ScopedFieldTrials(absl::string_view config)22ScopedFieldTrials::ScopedFieldTrials(absl::string_view config) 23 : current_field_trials_(config), 24 previous_field_trials_(webrtc::field_trial::GetFieldTrialString()) { 25 RTC_CHECK(webrtc::field_trial::FieldTrialsStringIsValid( 26 current_field_trials_.c_str())) 27 << "Invalid field trials string: " << current_field_trials_; 28 webrtc::field_trial::InitFieldTrialsFromString(current_field_trials_.c_str()); 29 } 30 ~ScopedFieldTrials()31ScopedFieldTrials::~ScopedFieldTrials() { 32 RTC_CHECK( 33 webrtc::field_trial::FieldTrialsStringIsValid(previous_field_trials_)) 34 << "Invalid field trials string: " << previous_field_trials_; 35 webrtc::field_trial::InitFieldTrialsFromString(previous_field_trials_); 36 } 37 38 } // namespace test 39 } // namespace webrtc 40