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128c4dcbea
Create FieldTrials class for setting the field trials from a string in a program. We can later e.g add a builder class where one can add key/value pairs. This class is supposed to replace webrtc::field_trial::InitFieldTrialsFromString. No-Try: True Bug: webrtc:10335 Change-Id: I17f45e401102fddda50ca7c4a04bea2f1cb87788 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256973 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36376}
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/*
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* Copyright 2022 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "api/field_trials.h"
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#include "api/transport/field_trial_based_config.h"
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#include "system_wrappers/include/field_trial.h"
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#include "test/gtest.h"
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#if GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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#include "test/testsupport/rtc_expect_death.h"
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#endif // GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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namespace webrtc {
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TEST(FieldTrials, EmptyString) {
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FieldTrials f("");
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EXPECT_FALSE(f.IsEnabled("MyCoolTrial"));
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EXPECT_FALSE(f.IsDisabled("MyCoolTrial"));
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}
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TEST(FieldTrials, EnableDisable) {
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FieldTrials f("MyCoolTrial/Enabled/MyUncoolTrial/Disabled/");
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EXPECT_TRUE(f.IsEnabled("MyCoolTrial"));
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EXPECT_TRUE(f.IsDisabled("MyUncoolTrial"));
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}
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TEST(FieldTrials, SetGlobalStringAndReadFromFieldTrial) {
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const char* s = "MyCoolTrial/Enabled/MyUncoolTrial/Disabled/";
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webrtc::field_trial::InitFieldTrialsFromString(s);
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FieldTrialBasedConfig f;
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EXPECT_TRUE(f.IsEnabled("MyCoolTrial"));
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EXPECT_TRUE(f.IsDisabled("MyUncoolTrial"));
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}
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TEST(FieldTrials, SetFieldTrialAndReadFromGlobalString) {
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FieldTrials f("MyCoolTrial/Enabled/MyUncoolTrial/Disabled/");
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EXPECT_TRUE(webrtc::field_trial::IsEnabled("MyCoolTrial"));
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EXPECT_TRUE(webrtc::field_trial::IsDisabled("MyUncoolTrial"));
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}
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TEST(FieldTrials, RestoresGlobalString) {
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const char* s = "SomeString/Enabled/";
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webrtc::field_trial::InitFieldTrialsFromString(s);
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{
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FieldTrials f("SomeOtherString/Enabled/");
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EXPECT_EQ(std::string("SomeOtherString/Enabled/"),
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webrtc::field_trial::GetFieldTrialString());
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}
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EXPECT_EQ(s, webrtc::field_trial::GetFieldTrialString());
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}
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#if GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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TEST(FieldTrials, OnlyOneInstance) {
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FieldTrials f("SomeString/Enabled/");
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RTC_EXPECT_DEATH(FieldTrials("SomeOtherString/Enabled/").Lookup("Whatever"),
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"Only one instance");
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}
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#endif // GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
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TEST(FieldTrials, SequentialInstances) {
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{ FieldTrials f("SomeString/Enabled/"); }
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{ FieldTrials f("SomeOtherString/Enabled/"); }
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}
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} // namespace webrtc
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