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/*
* Copyright 2019 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 "system_wrappers/include/field_trial.h"
#include "rtc_base/checks.h"
#include "test/gtest.h"
#include "test/testsupport/rtc_expect_death.h"
namespace webrtc {
namespace field_trial {
#if GTEST_HAS_DEATH_TEST && RTC_DCHECK_IS_ON && !defined(WEBRTC_ANDROID) && \
!defined(WEBRTC_EXCLUDE_FIELD_TRIAL_DEFAULT)
TEST(FieldTrialValidationTest, AcceptsValidInputs) {
InitFieldTrialsFromString("");
InitFieldTrialsFromString("Audio/Enabled/");
InitFieldTrialsFromString("Audio/Enabled/Video/Disabled/");
EXPECT_TRUE(FieldTrialsStringIsValid(""));
EXPECT_TRUE(FieldTrialsStringIsValid("Audio/Enabled/"));
EXPECT_TRUE(FieldTrialsStringIsValid("Audio/Enabled/Video/Disabled/"));
// Duplicate trials with the same value is fine
InitFieldTrialsFromString("Audio/Enabled/Audio/Enabled/");
InitFieldTrialsFromString("Audio/Enabled/B/C/Audio/Enabled/");
EXPECT_TRUE(FieldTrialsStringIsValid("Audio/Enabled/Audio/Enabled/"));
EXPECT_TRUE(FieldTrialsStringIsValid("Audio/Enabled/B/C/Audio/Enabled/"));
}
TEST(FieldTrialValidationDeathTest, RejectsBadInputs) {
// Bad delimiters
RTC_EXPECT_DEATH(InitFieldTrialsFromString("Audio/EnabledVideo/Disabled/"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(InitFieldTrialsFromString("Audio/Enabled//Video/Disabled/"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(InitFieldTrialsFromString("/Audio/Enabled/Video/Disabled/"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(InitFieldTrialsFromString("Audio/Enabled/Video/Disabled"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(
InitFieldTrialsFromString("Audio/Enabled/Video/Disabled/garbage"),
"Invalid field trials string:");
EXPECT_FALSE(FieldTrialsStringIsValid("Audio/EnabledVideo/Disabled/"));
EXPECT_FALSE(FieldTrialsStringIsValid("Audio/Enabled//Video/Disabled/"));
EXPECT_FALSE(FieldTrialsStringIsValid("/Audio/Enabled/Video/Disabled/"));
EXPECT_FALSE(FieldTrialsStringIsValid("Audio/Enabled/Video/Disabled"));
EXPECT_FALSE(
FieldTrialsStringIsValid("Audio/Enabled/Video/Disabled/garbage"));
// Empty trial or group
RTC_EXPECT_DEATH(InitFieldTrialsFromString("Audio//"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(InitFieldTrialsFromString("/Enabled/"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(InitFieldTrialsFromString("//"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(InitFieldTrialsFromString("//Enabled"),
"Invalid field trials string:");
EXPECT_FALSE(FieldTrialsStringIsValid("Audio//"));
EXPECT_FALSE(FieldTrialsStringIsValid("/Enabled/"));
EXPECT_FALSE(FieldTrialsStringIsValid("//"));
EXPECT_FALSE(FieldTrialsStringIsValid("//Enabled"));
// Duplicate trials with different values is not fine
RTC_EXPECT_DEATH(InitFieldTrialsFromString("Audio/Enabled/Audio/Disabled/"),
"Invalid field trials string:");
RTC_EXPECT_DEATH(
InitFieldTrialsFromString("Audio/Enabled/B/C/Audio/Disabled/"),
"Invalid field trials string:");
EXPECT_FALSE(FieldTrialsStringIsValid("Audio/Enabled/Audio/Disabled/"));
EXPECT_FALSE(FieldTrialsStringIsValid("Audio/Enabled/B/C/Audio/Disabled/"));
}
TEST(FieldTrialMergingTest, MergesValidInput) {
EXPECT_EQ(MergeFieldTrialsStrings("Video/Enabled/", "Audio/Enabled/"),
"Audio/Enabled/Video/Enabled/");
EXPECT_EQ(MergeFieldTrialsStrings("Audio/Disabled/Video/Enabled/",
"Audio/Enabled/"),
"Audio/Enabled/Video/Enabled/");
EXPECT_EQ(
MergeFieldTrialsStrings("Audio/Enabled/Video/Enabled/", "Audio/Enabled/"),
"Audio/Enabled/Video/Enabled/");
EXPECT_EQ(
MergeFieldTrialsStrings("Audio/Enabled/Audio/Enabled/", "Video/Enabled/"),
"Audio/Enabled/Video/Enabled/");
}
TEST(FieldTrialMergingDeathTest, DchecksBadInput) {
RTC_EXPECT_DEATH(MergeFieldTrialsStrings("Audio/Enabled/", "garbage"),
"Invalid field trials string:");
}
TEST(FieldTrialMergingTest, HandlesEmptyInput) {
EXPECT_EQ(MergeFieldTrialsStrings("", "Audio/Enabled/"), "Audio/Enabled/");
EXPECT_EQ(MergeFieldTrialsStrings("Audio/Enabled/", ""), "Audio/Enabled/");
EXPECT_EQ(MergeFieldTrialsStrings("", ""), "");
}
#endif // GTEST_HAS_DEATH_TEST && RTC_DCHECK_IS_ON && !defined(WEBRTC_ANDROID)
// && !defined(WEBRTC_EXCLUDE_FIELD_TRIAL_DEFAULT)
} // namespace field_trial
} // namespace webrtc
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