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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "base/time/time.h"
#include "chrome/browser/ash/login/test/guest_session_mixin.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/metrics/testing/sync_metrics_test_utils.h"
#include "chrome/browser/sync/test/integration/sync_service_impl_harness.h"
#include "chrome/browser/sync/test/integration/sync_test.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/test/base/mixin_based_in_process_browser_test.h"
#include "components/metrics/delegating_provider.h"
#include "components/metrics/demographics/demographic_metrics_provider.h"
#include "components/metrics/demographics/demographic_metrics_test_utils.h"
#include "components/metrics/demographics/user_demographics.h"
#include "components/metrics/metrics_service.h"
#include "components/sync/test/fake_server.h"
#include "content/public/test/browser_test.h"
#include "third_party/metrics_proto/chrome_user_metrics_extension.pb.h"
#include "third_party/metrics_proto/system_profile.pb.h"
#include "third_party/metrics_proto/user_demographics.pb.h"
namespace chromeos {
namespace {
// Explicitly calls ProvideCurrentSessionData() for all metrics providers.
void ProvideCurrentSessionData() {
// The purpose of the below call is to avoid a DCHECK failure in an
// unrelated metrics provider, in
// |FieldTrialsProvider::ProvideCurrentSessionData()|.
metrics::SystemProfileProto system_profile_proto;
g_browser_process->metrics_service()
->GetDelegatingProviderForTesting()
->ProvideSystemProfileMetricsWithLogCreationTime(base::TimeTicks::Now(),
&system_profile_proto);
metrics::ChromeUserMetricsExtension uma_proto;
g_browser_process->metrics_service()
->GetDelegatingProviderForTesting()
->ProvideCurrentSessionData(&uma_proto);
}
} // namespace
class MajorityAgeUserMetricsProviderTest
: public SyncTest,
public testing::WithParamInterface</*age=*/int> {
public:
MajorityAgeUserMetricsProviderTest() : SyncTest(SINGLE_CLIENT) {
scoped_feature_list_.InitAndEnableFeature(
metrics::kDemographicMetricsReporting);
}
int GetAge() { return GetParam(); }
PrefService* local_state() { return g_browser_process->local_state(); }
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
IN_PROC_BROWSER_TEST_P(MajorityAgeUserMetricsProviderTest,
IsUserOver21Under85) {
base::HistogramTester histogram_tester;
// Set network time for test.
const base::Time now = base::Time::Now();
metrics::test::UpdateNetworkTime(now,
g_browser_process->network_time_tracker());
// Compute birth year.
base::Time::Exploded exploded_now_time;
now.LocalExplode(&exploded_now_time);
int test_birth_year = exploded_now_time.year - GetAge();
metrics::UserDemographicsProto::Gender test_gender =
metrics::UserDemographicsProto::GENDER_MALE;
// Assign a random gender.
if (test_birth_year % 2 == 0)
test_gender = metrics::UserDemographicsProto::GENDER_FEMALE;
metrics::test::AddUserBirthYearAndGenderToSyncServer(
GetFakeServer()->AsWeakPtr(), test_birth_year, test_gender);
// TODO(crbug.com/40688248): Try to replace the below set-up code with
// functions from SyncTest.
std::unique_ptr<SyncServiceImplHarness> harness =
metrics::test::InitializeProfileForSync(browser()->profile(),
GetFakeServer()->AsWeakPtr());
ASSERT_TRUE(harness->SetupSync());
// Simulate calling ProvideCurrentSessionData() after logging in.
ProvideCurrentSessionData();
const int noised_age =
exploded_now_time.year -
metrics::test::GetNoisedBirthYear(local_state(), test_birth_year);
const bool is_eligible =
noised_age > metrics::kUserDemographicsMinAgeInYears &&
noised_age <= metrics::kUserDemographicsMaxAgeInYears;
histogram_tester.ExpectUniqueSample(
"UMA.UserDemographics.IsNoisedAgeOver21Under85",
/*sample=*/is_eligible,
/*expected_count=*/1);
}
INSTANTIATE_TEST_SUITE_P(
,
MajorityAgeUserMetricsProviderTest,
testing::Values(0, 12, 13, 14, 17, 18, 19, 20, 21, 22, 83, 84, 85, 86));
class MajorityAgeUserMetricsProviderGuestModeTest
: public MixinBasedInProcessBrowserTest {
public:
MajorityAgeUserMetricsProviderGuestModeTest() {
scoped_feature_list_.InitAndEnableFeature(
metrics::kDemographicMetricsReporting);
}
private:
ash::GuestSessionMixin guest_session_mixin_{&mixin_host_};
base::test::ScopedFeatureList scoped_feature_list_;
};
// Tests that guest users report unknown data because they don't have an age and
// don't crash.
IN_PROC_BROWSER_TEST_F(MajorityAgeUserMetricsProviderGuestModeTest, GuestMode) {
base::HistogramTester histogram_tester;
ProvideCurrentSessionData();
histogram_tester.ExpectUniqueSample(
"UMA.UserDemographics.IsNoisedAgeOver21Under85",
/*sample=*/false, // unknown
/*expected_count=*/1);
}
} // namespace chromeos
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