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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/app_list/app_list_feature_usage_metrics.h"
#include "ash/app_list/app_list_controller_impl.h"
#include "ash/constants/ash_features.h"
#include "ash/constants/ash_switches.h"
#include "ash/shell.h"
#include "ash/test/ash_test_base.h"
#include "base/command_line.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "chromeos/ash/components/feature_usage/feature_usage_metrics.h"
#include "components/user_manager/user_type.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace {
// Expanded metric names recorded by FeatureUsageMetrics.
constexpr char kClamshellMetric[] = "ChromeOS.FeatureUsage.ClamshellLauncher";
constexpr char kClamshellUsetimeMetric[] =
"ChromeOS.FeatureUsage.ClamshellLauncher.Usetime";
constexpr char kTabletMetric[] = "ChromeOS.FeatureUsage.TabletLauncher";
constexpr char kTabletUsetimeMetric[] =
"ChromeOS.FeatureUsage.TabletLauncher.Usetime";
// Shorten these identifiers for readability.
constexpr int kEligible =
static_cast<int>(feature_usage::FeatureUsageMetrics::Event::kEligible);
constexpr int kEnabled =
static_cast<int>(feature_usage::FeatureUsageMetrics::Event::kEnabled);
constexpr int kUsedWithSuccess = static_cast<int>(
feature_usage::FeatureUsageMetrics::Event::kUsedWithSuccess);
// Uses NoSessionAshTestBase because some tests need to simulate kiosk login.
class AppListFeatureUsageMetricsTest : public NoSessionAshTestBase {
public:
AppListFeatureUsageMetricsTest()
: NoSessionAshTestBase(
base::test::TaskEnvironment::TimeSource::MOCK_TIME) {}
~AppListFeatureUsageMetricsTest() override = default;
// Simulates a device that supports tablet mode.
void SimulateTabletModeSupport() {
base::CommandLine::ForCurrentProcess()->AppendSwitch(
switches::kAshEnableTabletMode);
auto* tablet_mode_controller = Shell::Get()->tablet_mode_controller();
tablet_mode_controller->OnECLidAngleDriverStatusChanged(
/*is_supported=*/true);
tablet_mode_controller->OnDeviceListsComplete();
}
void FastForwardBy(base::TimeDelta delta) {
task_environment()->FastForwardBy(delta);
}
// Fast forwards the clock past the time when FeatureUsageMetrics reports
// its initial set of eligible/enabled metrics.
void FastForwardPastMetricsReportingInterval() {
FastForwardBy(feature_usage::FeatureUsageMetrics::kInitialInterval);
}
base::HistogramTester histograms_;
};
TEST_F(AppListFeatureUsageMetricsTest, CountsStartAtZero) {
SimulateUserLogin("user@gmail.com");
histograms_.ExpectTotalCount(kClamshellMetric, 0);
histograms_.ExpectTotalCount(kClamshellUsetimeMetric, 0);
histograms_.ExpectTotalCount(kTabletMetric, 0);
histograms_.ExpectTotalCount(kTabletUsetimeMetric, 0);
}
TEST_F(AppListFeatureUsageMetricsTest, InitialMetricsWithoutTabletModeSupport) {
ASSERT_FALSE(Shell::Get()->tablet_mode_controller()->CanEnterTabletMode());
SimulateUserLogin("user@gmail.com");
FastForwardPastMetricsReportingInterval();
histograms_.ExpectBucketCount(kClamshellMetric, kEligible, 1);
histograms_.ExpectBucketCount(kClamshellMetric, kEnabled, 1);
// Not eligible for tablet mode.
histograms_.ExpectBucketCount(kTabletMetric, kEligible, 0);
histograms_.ExpectBucketCount(kTabletMetric, kEnabled, 0);
}
TEST_F(AppListFeatureUsageMetricsTest, InitialMetricsWithTabletModeSupport) {
SimulateTabletModeSupport();
ASSERT_TRUE(Shell::Get()->tablet_mode_controller()->CanEnterTabletMode());
SimulateUserLogin("user@gmail.com");
FastForwardPastMetricsReportingInterval();
histograms_.ExpectBucketCount(kClamshellMetric, kEligible, 1);
histograms_.ExpectBucketCount(kClamshellMetric, kEnabled, 1);
// Eligible for tablet mode.
histograms_.ExpectBucketCount(kTabletMetric, kEligible, 1);
histograms_.ExpectBucketCount(kTabletMetric, kEnabled, 1);
}
TEST_F(AppListFeatureUsageMetricsTest, NotEligibleInKioskMode) {
SimulateKioskMode(user_manager::USER_TYPE_KIOSK_APP);
FastForwardPastMetricsReportingInterval();
histograms_.ExpectBucketCount(kClamshellMetric, kEligible, 0);
histograms_.ExpectBucketCount(kClamshellMetric, kEnabled, 0);
histograms_.ExpectBucketCount(kTabletMetric, kEligible, 0);
histograms_.ExpectBucketCount(kTabletMetric, kEnabled, 0);
}
TEST_F(AppListFeatureUsageMetricsTest, ShowAndHideLauncherInClamshell) {
SimulateUserLogin("user@gmail.com");
Shell::Get()->app_list_controller()->ShowAppList(
AppListShowSource::kSearchKey);
histograms_.ExpectBucketCount(kClamshellMetric, kUsedWithSuccess, 1);
const base::TimeDelta kUsetime = base::Seconds(2);
FastForwardBy(kUsetime);
Shell::Get()->app_list_controller()->DismissAppList();
histograms_.ExpectTimeBucketCount(kClamshellUsetimeMetric, kUsetime, 1);
// Tablet usage is not recorded.
histograms_.ExpectTotalCount(kTabletUsetimeMetric, 0);
}
TEST_F(AppListFeatureUsageMetricsTest, ShowAndHideLauncherInTablet) {
SimulateTabletModeSupport();
ASSERT_TRUE(Shell::Get()->tablet_mode_controller()->CanEnterTabletMode());
SimulateUserLogin("user@gmail.com");
// Entering tablet mode shows the home screen launcher.
Shell::Get()->tablet_mode_controller()->SetEnabledForTest(true);
histograms_.ExpectBucketCount(kTabletMetric, kUsedWithSuccess, 1);
const base::TimeDelta kUsetime = base::Seconds(2);
FastForwardBy(kUsetime);
// Creating a window hides the launcher.
std::unique_ptr<views::Widget> widget = CreateTestWidget();
histograms_.ExpectTimeBucketCount(kTabletUsetimeMetric, kUsetime, 1);
// Clamshell usage is not recorded.
histograms_.ExpectTotalCount(kClamshellUsetimeMetric, 0);
}
TEST_F(AppListFeatureUsageMetricsTest,
EnterTabletModeWithLauncherAndWindowOpen) {
SimulateTabletModeSupport();
ASSERT_TRUE(Shell::Get()->tablet_mode_controller()->CanEnterTabletMode());
SimulateUserLogin("user@gmail.com");
std::unique_ptr<views::Widget> widget = CreateTestWidget();
Shell::Get()->app_list_controller()->ShowAppList(
AppListShowSource::kSearchKey);
// Entering tablet mode with a window open does not show the launcher.
Shell::Get()->tablet_mode_controller()->SetEnabledForTest(true);
FastForwardBy(base::Seconds(1));
histograms_.ExpectTotalCount(kTabletUsetimeMetric, 0);
// Show the tablet launcher for 1 second.
Shell::Get()->app_list_controller()->GoHome(GetPrimaryDisplay().id());
FastForwardBy(base::Seconds(1));
Shell::Get()->tablet_mode_controller()->SetEnabledForTest(false);
// Only 1 second of usage is recorded.
histograms_.ExpectTimeBucketCount(kTabletUsetimeMetric, base::Seconds(1), 1);
}
TEST_F(AppListFeatureUsageMetricsTest, OpenClamshellThenTabletThenExit) {
SimulateTabletModeSupport();
SimulateUserLogin("user@gmail.com");
Shell::Get()->app_list_controller()->ShowAppList(
AppListShowSource::kSearchKey);
histograms_.ExpectBucketCount(kClamshellMetric, kUsedWithSuccess, 1);
// Switching from clamshell to tablet with the launcher open records usage
// time for clamshell launcher and starts a tablet launcher usage session.
const base::TimeDelta kClamshellUsetime = base::Seconds(1);
FastForwardBy(kClamshellUsetime);
Shell::Get()->tablet_mode_controller()->SetEnabledForTest(true);
histograms_.ExpectTimeBucketCount(kClamshellUsetimeMetric, kClamshellUsetime,
1);
histograms_.ExpectBucketCount(kTabletMetric, kUsedWithSuccess, 1);
// Ending tablet mode records usage time for tablet launcher.
const base::TimeDelta kTabletUsetime = base::Seconds(2);
FastForwardBy(kTabletUsetime);
Shell::Get()->tablet_mode_controller()->SetEnabledForTest(false);
histograms_.ExpectTimeBucketCount(kTabletUsetimeMetric, kTabletUsetime, 1);
}
} // namespace
} // namespace ash
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