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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/tpcd/experiment/eligibility_service.h"
#include <memory>
#include <optional>
#include <utility>
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/strings/to_string.h"
#include "base/test/gmock_callback_support.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "base/test/test_future.h"
#include "build/build_config.h"
#include "build/buildflag.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_settings_factory.h"
#include "chrome/browser/privacy_sandbox/tracking_protection_onboarding_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/tpcd/experiment/eligibility_service_factory.h"
#include "chrome/browser/tpcd/experiment/mock_experiment_manager.h"
#include "chrome/browser/tpcd/experiment/tpcd_experiment_features.h"
#include "chrome/test/base/scoped_testing_local_state.h"
#include "chrome/test/base/testing_browser_process.h"
#include "chrome/test/base/testing_profile.h"
#include "components/privacy_sandbox/privacy_sandbox_settings.h"
#include "components/privacy_sandbox/privacy_sandbox_test_util.h"
#include "components/privacy_sandbox/tpcd_experiment_eligibility.h"
#include "components/privacy_sandbox/tracking_protection_onboarding.h"
#include "components/privacy_sandbox/tracking_protection_prefs.h"
#include "components/version_info/channel.h"
#include "content/public/common/content_features.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace tpcd::experiment {
namespace {
using ::testing::_;
using ::testing::Return;
using TpcdExperimentEligibility = privacy_sandbox::TpcdExperimentEligibility;
constexpr char kReasonForEligibilityStoredInPrefsHistogram[] =
"PrivacySandbox.CookieDeprecationFacilitatedTesting."
"ReasonForEligibilityStoredInPrefs";
} // namespace
class EligibilityServiceTestBase : public testing::Test {
public:
EligibilityServiceTestBase()
: local_state_(TestingBrowserProcess::GetGlobal()) {}
void SetUp() override {
experiment_manager_ = std::make_unique<MockExperimentManager>();
ON_CALL(*experiment_manager_, DidVersionChange)
.WillByDefault(Return(false));
privacy_sandbox_settings_ =
PrivacySandboxSettingsFactory::GetForProfile(&profile_);
auto privacy_sandbox_delegate = std::make_unique<
privacy_sandbox_test_util::MockPrivacySandboxSettingsDelegate>();
privacy_sandbox_delegate_ = privacy_sandbox_delegate.get();
privacy_sandbox_delegate_
->SetUpGetCookieDeprecationExperimentCurrentEligibility(
TpcdExperimentEligibility::Reason::kEligible);
privacy_sandbox_settings_->SetDelegateForTesting(
std::move(privacy_sandbox_delegate));
onboarding_service_ =
TrackingProtectionOnboardingFactory::GetForProfile(&profile_);
}
protected:
content::BrowserTaskEnvironment browser_task_environment_;
ScopedTestingLocalState local_state_;
TestingProfile profile_;
std::unique_ptr<MockExperimentManager> experiment_manager_;
raw_ptr<privacy_sandbox::PrivacySandboxSettings> privacy_sandbox_settings_;
raw_ptr<privacy_sandbox_test_util::MockPrivacySandboxSettingsDelegate>
privacy_sandbox_delegate_;
raw_ptr<privacy_sandbox::TrackingProtectionOnboarding> onboarding_service_;
};
class EligibilityServiceTest : public EligibilityServiceTestBase {
public:
EligibilityServiceTest() {
feature_list_.InitAndEnableFeature(
features::kCookieDeprecationFacilitatedTesting);
}
private:
base::test::ScopedFeatureList feature_list_;
};
TEST_F(EligibilityServiceTest, ClientEligibilityKnown_ClientEligibilityNotSet) {
base::HistogramTester histograms;
EXPECT_CALL(*experiment_manager_, IsClientEligible).WillOnce(Return(false));
EXPECT_CALL(*experiment_manager_, SetClientEligibility).Times(0);
EligibilityService eligibility_service(&profile_, onboarding_service_,
privacy_sandbox_settings_,
experiment_manager_.get());
histograms.ExpectTotalCount(kReasonForEligibilityStoredInPrefsHistogram, 0);
}
TEST_F(EligibilityServiceTest,
ClientEligibilityUnknownProfileIneligible_ClientEligibilitySet) {
base::HistogramTester histograms;
EXPECT_CALL(*experiment_manager_, IsClientEligible)
.WillOnce(Return(std::nullopt));
EXPECT_CALL(*privacy_sandbox_delegate_,
GetCookieDeprecationExperimentCurrentEligibility)
.WillOnce(Return(TpcdExperimentEligibility(
TpcdExperimentEligibility::Reason::k3pCookiesBlocked)));
EXPECT_CALL(*experiment_manager_, SetClientEligibility(false, _))
.WillOnce(base::test::RunOnceCallback<1>(false));
EligibilityService eligibility_service(&profile_, onboarding_service_,
privacy_sandbox_settings_,
experiment_manager_.get());
histograms.ExpectUniqueSample(
kReasonForEligibilityStoredInPrefsHistogram,
/*sample=*/TpcdExperimentEligibility::Reason::k3pCookiesBlocked,
/*expected_bucket_count=*/1);
}
TEST_F(EligibilityServiceTest,
ClientEligibilityUnknownProfileEligible_ClientEligibilitySet) {
base::HistogramTester histograms;
EXPECT_CALL(*experiment_manager_, IsClientEligible)
.WillOnce(Return(std::nullopt));
EXPECT_CALL(*privacy_sandbox_delegate_,
GetCookieDeprecationExperimentCurrentEligibility)
.WillOnce(Return(TpcdExperimentEligibility(
TpcdExperimentEligibility::Reason::kEligible)));
EXPECT_CALL(*experiment_manager_, SetClientEligibility(true, _))
.WillOnce(base::test::RunOnceCallback<1>(true));
EligibilityService eligibility_service(&profile_, onboarding_service_,
privacy_sandbox_settings_,
experiment_manager_.get());
histograms.ExpectUniqueSample(
kReasonForEligibilityStoredInPrefsHistogram,
/*sample=*/TpcdExperimentEligibility::Reason::kEligible,
/*expected_bucket_count=*/1);
}
class EligibilityServiceOTRProfileTest
: public EligibilityServiceTestBase,
public testing::WithParamInterface<bool> {
public:
EligibilityServiceOTRProfileTest() {
feature_list_.InitAndEnableFeatureWithParameters(
features::kCookieDeprecationFacilitatedTesting,
{{"enable_otr_profiles", base::ToString(GetParam())}});
}
private:
base::test::ScopedFeatureList feature_list_;
};
TEST_P(EligibilityServiceOTRProfileTest, Creation) {
const bool enable_otr_profiles = GetParam();
auto* eligibility_service =
EligibilityServiceFactory::GetForProfile(profile_.GetOffTheRecordProfile(
Profile::OTRProfileID::CreateUniqueForTesting(),
/*create_if_needed=*/true));
EXPECT_EQ(eligibility_service != nullptr, enable_otr_profiles);
// Android does not have guest profiles.
#if !BUILDFLAG(IS_ANDROID)
auto guest_profile = TestingProfile::Builder().SetGuestSession().Build();
eligibility_service =
EligibilityServiceFactory::GetForProfile(guest_profile.get());
EXPECT_EQ(eligibility_service != nullptr, enable_otr_profiles);
#endif // !BUILDFLAG(IS_ANDROID)
}
INSTANTIATE_TEST_SUITE_P(All,
EligibilityServiceOTRProfileTest,
testing::Bool());
} // namespace tpcd::experiment
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