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// Copyright 2025 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/ui/waap/waap_ui_metrics_service.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "base/time/time.h"
#include "chrome/browser/ui/waap/waap_ui_metrics_recorder.h"
#include "chrome/browser/ui/waap/waap_ui_metrics_service_factory.h"
#include "chrome/common/chrome_features.h"
#include "chrome/test/base/testing_profile.h"
#include "components/startup_metric_utils/browser/startup_metric_utils.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
class WaapUIMetricsServiceTest : public testing::Test {
public:
WaapUIMetricsServiceTest() = default;
~WaapUIMetricsServiceTest() override = default;
void SetUp() override {
// WaapUIMetricsService is only available when the feature is enabled.
feature_list_.InitAndEnableFeature(features::kInitialWebUIMetrics);
}
protected:
base::HistogramTester* histogram_tester() { return &histogram_tester_; }
TestingProfile* profile() { return &profile_; }
private:
content::BrowserTaskEnvironment task_environment_;
base::test::ScopedFeatureList feature_list_;
base::HistogramTester histogram_tester_;
TestingProfile profile_;
};
// Tests that the WaapUIMetricsService is not created when the kInitialWebUI
// feature is disabled.
TEST(WaapUIMetricsServiceFeatureDisabledTest, ServiceNotCreated) {
base::test::ScopedFeatureList feature_list;
feature_list.InitAndDisableFeature(features::kInitialWebUIMetrics);
content::BrowserTaskEnvironment task_environment;
TestingProfile profile;
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(&profile);
EXPECT_FALSE(service);
}
#if !BUILDFLAG(IS_CHROMEOS)
// Tests that the OnFirstPaint method records a histogram on the first call,
// and does not record it again on subsequent calls.
TEST_F(WaapUIMetricsServiceTest, OnFirstPaint) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
const base::TimeTicks paint_time = base::TimeTicks::Now();
service->OnFirstPaint(paint_time);
// For tests, startup temperature is undetermined.
histogram_tester()->ExpectTotalCount(
"InitialWebUI.Startup.ReloadButton.FirstPaint", 1);
// Call a second time to ensure it's not recorded again.
service->OnFirstPaint(paint_time);
histogram_tester()->ExpectTotalCount(
"InitialWebUI.Startup.ReloadButton.FirstPaint", 1);
}
// Tests that the OnFirstContentfulPaint method records a histogram on the
// first call, and does not record it again on subsequent calls.
TEST_F(WaapUIMetricsServiceTest, OnFirstContentfulPaint) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
const base::TimeTicks paint_time = base::TimeTicks::Now();
service->OnFirstContentfulPaint(paint_time);
// For tests, startup temperature is undetermined.
histogram_tester()->ExpectTotalCount(
"InitialWebUI.Startup.ReloadButton.FirstContentfulPaint", 1);
// Call a second time to ensure it's not recorded again.
service->OnFirstContentfulPaint(paint_time);
histogram_tester()->ExpectTotalCount(
"InitialWebUI.Startup.ReloadButton.FirstContentfulPaint", 1);
}
#endif // !BUILDFLAG(IS_CHROMEOS)
// Tests that the OnReloadButtonMousePressToNextPaint method records a
// histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonMousePressToNextPaint) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
const auto start_ticks = base::TimeTicks::Now();
const base::TimeDelta duration = base::Milliseconds(15);
service->OnReloadButtonMousePressToNextPaint(start_ticks,
start_ticks + duration);
histogram_tester.ExpectUniqueTimeSample(
"InitialWebUI.ReloadButton.MousePressToNextPaint", duration, 1);
}
// Tests that the OnReloadButtonMouseHoverToNextPaint method records a
// histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonMouseHoverToNextPaint) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
const auto start_ticks = base::TimeTicks::Now();
const base::TimeDelta latency = base::Milliseconds(10);
service->OnReloadButtonMouseHoverToNextPaint(start_ticks,
start_ticks + latency);
histogram_tester.ExpectUniqueTimeSample(
"InitialWebUI.ReloadButton.MouseHoverToNextPaint", latency, 1);
}
// Tests that the OnReloadButtonInput method records a histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonInput) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
service->OnReloadButtonInput(
WaapUIMetricsRecorder::ReloadButtonInputType::kMouseRelease);
histogram_tester.ExpectBucketCount(
"InitialWebUI.ReloadButton.InputCount",
WaapUIMetricsRecorder::ReloadButtonInputType::kMouseRelease, 1);
service->OnReloadButtonInput(
WaapUIMetricsRecorder::ReloadButtonInputType::kKeyPress);
histogram_tester.ExpectBucketCount(
"InitialWebUI.ReloadButton.InputCount",
WaapUIMetricsRecorder::ReloadButtonInputType::kKeyPress, 1);
histogram_tester.ExpectTotalCount("InitialWebUI.ReloadButton.InputCount", 2);
}
// Tests that the OnReloadButtonInputToReload method records a histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonInputToReload) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
const auto start_ticks = base::TimeTicks::Now();
const base::TimeDelta latency = base::Milliseconds(10);
service->OnReloadButtonInputToReload(
start_ticks, start_ticks + latency,
WaapUIMetricsRecorder::ReloadButtonInputType::kKeyPress);
histogram_tester.ExpectUniqueTimeSample(
"InitialWebUI.ReloadButton.InputToReload.KeyPress", latency, 1);
}
// Tests that the OnReloadButtonInputToStop method records a histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonInputToStop) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
const auto start_ticks = base::TimeTicks::Now();
const base::TimeDelta latency = base::Milliseconds(12);
service->OnReloadButtonInputToStop(
start_ticks, start_ticks + latency,
WaapUIMetricsRecorder::ReloadButtonInputType::kMouseRelease);
histogram_tester.ExpectUniqueTimeSample(
"InitialWebUI.ReloadButton.InputToStop.MouseRelease", latency, 1);
}
// Tests that the OnReloadButtonInputToNextPaint method records a histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonInputToNextPaint) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
const auto start_ticks = base::TimeTicks::Now();
const base::TimeDelta latency = base::Milliseconds(14);
service->OnReloadButtonInputToNextPaint(
start_ticks, start_ticks + latency,
WaapUIMetricsRecorder::ReloadButtonInputType::kKeyPress);
histogram_tester.ExpectUniqueTimeSample(
"InitialWebUI.ReloadButton.InputToNextPaint.KeyPress", latency, 1);
}
// Tests that the OnReloadButtonChangeVisibleModeToNextPaint method records a
// histogram.
TEST_F(WaapUIMetricsServiceTest, OnReloadButtonChangeVisibleModeToNextPaint) {
WaapUIMetricsService* service =
WaapUIMetricsServiceFactory::GetForProfile(profile());
ASSERT_TRUE(service);
base::HistogramTester histogram_tester;
const auto start_ticks = base::TimeTicks::Now();
const base::TimeDelta latency = base::Milliseconds(16);
service->OnReloadButtonChangeVisibleModeToNextPaint(
start_ticks, start_ticks + latency,
WaapUIMetricsRecorder::ReloadButtonMode::kStop);
histogram_tester.ExpectUniqueTimeSample(
"InitialWebUI.ReloadButton.ChangeVisibleModeToNextPaintInStop", latency,
1);
}
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