blob: 735aa1f8332fbacada08673aaef5bcf52c707454 [file] [log] [blame]
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <string>
#include <map>
namespace webrtc {
namespace test {
// Parses enabled field trials from a string config, such as the one passed
// to chrome's argument --force-fieldtrials and initializes webrtc::field_trial
// with such a config.
// E.g.:
// "WebRTC-experimentFoo/Enabled/WebRTC-experimentBar/Enabled100kbps/"
// Assigns the process to group "Enabled" on WebRTCExperimentFoo trial
// and to group "Enabled100kbps" on WebRTCExperimentBar.
// E.g. invalid config:
// "WebRTC-experiment1/Enabled" (note missing / separator at the end).
// Note: This method crashes with an error message if an invalid config is
// passed to it. That can be used to find out if a binary is parsing the flags.
void InitFieldTrialsFromString(const std::string& config);
// This class is used to override field-trial configs within specific tests.
// After this class goes out of scope previous field trials will be restored.
class ScopedFieldTrials {
explicit ScopedFieldTrials(const std::string& config);
std::string current_field_trials_;
const char* previous_field_trials_;
} // namespace test
} // namespace webrtc