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content / browser / renderer_host / input / render_input_router_latency_tracker_unittest.cc [blame]
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/input/render_input_router_latency_tracker.h"
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/metrics/metrics_hashes.h"
#include "base/test/metrics/histogram_tester.h"
#include "build/build_config.h"
#include "components/input/native_web_keyboard_event.h"
#include "components/ukm/test_ukm_recorder.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/common/content_client.h"
#include "content/test/test_content_browser_client.h"
#include "content/test/test_render_view_host.h"
#include "content/test/test_web_contents.h"
#include "services/metrics/public/cpp/ukm_source.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/input/synthetic_web_input_event_builders.h"
#include "ui/events/base_event_utils.h"
using base::Bucket;
using blink::WebInputEvent;
using testing::ElementsAre;
namespace content {
namespace {
void AddFakeComponentsWithTimeStamp(
const input::RenderInputRouterLatencyTracker& tracker,
ui::LatencyInfo* latency,
base::TimeTicks time_stamp) {
latency->AddLatencyNumberWithTimestamp(ui::INPUT_EVENT_LATENCY_UI_COMPONENT,
time_stamp);
latency->AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_LATENCY_FRAME_SWAP_COMPONENT, time_stamp);
latency->AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, time_stamp);
latency->AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_LATENCY_RENDERER_SWAP_COMPONENT, time_stamp);
latency->AddLatencyNumberWithTimestamp(
ui::DISPLAY_COMPOSITOR_RECEIVED_FRAME_COMPONENT, time_stamp);
}
void AddRenderingScheduledComponent(ui::LatencyInfo* latency,
bool main,
base::TimeTicks time_stamp) {
if (main) {
latency->AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN_COMPONENT, time_stamp);
} else {
latency->AddLatencyNumberWithTimestamp(
ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL_COMPONENT, time_stamp);
}
}
} // namespace
class RenderInputRouterLatencyTrackerTestBrowserClient
: public TestContentBrowserClient {
public:
RenderInputRouterLatencyTrackerTestBrowserClient() {}
RenderInputRouterLatencyTrackerTestBrowserClient(
const RenderInputRouterLatencyTrackerTestBrowserClient&) = delete;
RenderInputRouterLatencyTrackerTestBrowserClient& operator=(
const RenderInputRouterLatencyTrackerTestBrowserClient&) = delete;
~RenderInputRouterLatencyTrackerTestBrowserClient() override {}
ukm::TestUkmRecorder* GetTestUkmRecorder() { return &test_ukm_recorder_; }
private:
ukm::TestAutoSetUkmRecorder test_ukm_recorder_;
};
class RenderInputRouterLatencyTrackerTest
: public RenderViewHostImplTestHarness {
public:
RenderInputRouterLatencyTrackerTest() : old_browser_client_(nullptr) {
ResetHistograms();
}
RenderInputRouterLatencyTrackerTest(
const RenderInputRouterLatencyTrackerTest&) = delete;
RenderInputRouterLatencyTrackerTest& operator=(
const RenderInputRouterLatencyTrackerTest&) = delete;
void ExpectUkmReported(ukm::SourceId source_id,
const char* event_name,
const std::vector<std::string>& metric_names,
size_t expected_count) {
const ukm::TestUkmRecorder* ukm_recoder =
test_browser_client_.GetTestUkmRecorder();
auto entries = ukm_recoder->GetEntriesByName(event_name);
EXPECT_EQ(expected_count, entries.size());
for (const ukm::mojom::UkmEntry* const entry : entries) {
EXPECT_EQ(source_id, entry->source_id);
for (const auto& metric_name : metric_names) {
EXPECT_TRUE(ukm_recoder->EntryHasMetric(entry, metric_name.c_str()));
}
}
}
::testing::AssertionResult HistogramSizeEq(const char* histogram_name,
int size) {
uint64_t histogram_size =
histogram_tester_->GetAllSamples(histogram_name).size();
if (static_cast<uint64_t>(size) == histogram_size) {
return ::testing::AssertionSuccess();
} else {
return ::testing::AssertionFailure() << histogram_name << " expected "
<< size << " entries, but had "
<< histogram_size;
}
}
input::RenderInputRouterLatencyTracker* tracker() { return tracker_.get(); }
void ResetHistograms() {
histogram_tester_ = std::make_unique<base::HistogramTester>();
}
const base::HistogramTester& histogram_tester() {
return *histogram_tester_;
}
void SetUp() override {
RenderViewHostImplTestHarness::SetUp();
old_browser_client_ = SetBrowserClientForTesting(&test_browser_client_);
tracker_ = std::make_unique<input::RenderInputRouterLatencyTracker>(
main_test_rfh()->GetRenderWidgetHost());
}
void TearDown() override {
SetBrowserClientForTesting(old_browser_client_);
tracker_.reset();
RenderViewHostImplTestHarness::TearDown();
test_browser_client_.GetTestUkmRecorder()->Purge();
}
protected:
std::unique_ptr<base::HistogramTester> histogram_tester_;
std::unique_ptr<input::RenderInputRouterLatencyTracker> tracker_;
RenderInputRouterLatencyTrackerTestBrowserClient test_browser_client_;
raw_ptr<ContentBrowserClient> old_browser_client_;
};
TEST_F(RenderInputRouterLatencyTrackerTest,
LatencyTerminatedOnAckIfGSUIgnored) {
for (blink::WebGestureDevice source_device :
{blink::WebGestureDevice::kTouchscreen,
blink::WebGestureDevice::kTouchpad}) {
for (bool rendering_on_main : {false, true}) {
auto scroll = blink::SyntheticWebGestureEventBuilder::BuildScrollUpdate(
5.f, -5.f, 0, source_device);
base::TimeTicks now = base::TimeTicks::Now();
scroll.SetTimeStamp(now);
ui::LatencyInfo scroll_latency;
ui::EventLatencyMetadata event_latency_metadata;
AddFakeComponentsWithTimeStamp(*tracker(), &scroll_latency, now);
AddRenderingScheduledComponent(&scroll_latency, rendering_on_main, now);
tracker()->OnInputEvent(scroll, &scroll_latency, &event_latency_metadata);
tracker()->OnInputEventAck(
scroll, &scroll_latency,
blink::mojom::InputEventResultState::kNoConsumerExists);
EXPECT_TRUE(scroll_latency.terminated());
}
}
}
TEST_F(RenderInputRouterLatencyTrackerTest, ScrollLatency) {
auto scroll_begin = blink::SyntheticWebGestureEventBuilder::BuildScrollBegin(
5, -5, blink::WebGestureDevice::kTouchscreen);
ui::LatencyInfo scroll_latency;
ui::EventLatencyMetadata event_latency_metadata;
scroll_latency.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT);
tracker()->OnInputEvent(scroll_begin, &scroll_latency,
&event_latency_metadata);
base::TimeTicks begin_rwh_timestamp;
EXPECT_TRUE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, &begin_rwh_timestamp));
EXPECT_EQ(2U, scroll_latency.latency_components().size());
EXPECT_FALSE(
event_latency_metadata.arrived_in_browser_main_timestamp.is_null());
EXPECT_EQ(event_latency_metadata.arrived_in_browser_main_timestamp,
begin_rwh_timestamp);
// The first GestureScrollUpdate should be provided with
// INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL_COMPONENT.
auto first_scroll_update =
blink::SyntheticWebGestureEventBuilder::BuildScrollUpdate(
5.f, -5.f, 0, blink::WebGestureDevice::kTouchscreen);
scroll_latency = ui::LatencyInfo();
event_latency_metadata = ui::EventLatencyMetadata();
scroll_latency.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT);
tracker()->OnInputEvent(first_scroll_update, &scroll_latency,
&event_latency_metadata);
begin_rwh_timestamp = base::TimeTicks();
EXPECT_TRUE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, &begin_rwh_timestamp));
EXPECT_TRUE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL_COMPONENT, nullptr));
EXPECT_FALSE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT, nullptr));
EXPECT_EQ(3U, scroll_latency.latency_components().size());
EXPECT_FALSE(
event_latency_metadata.arrived_in_browser_main_timestamp.is_null());
EXPECT_EQ(event_latency_metadata.arrived_in_browser_main_timestamp,
begin_rwh_timestamp);
// Subsequent GestureScrollUpdates should be provided with
// INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT.
auto scroll_update =
blink::SyntheticWebGestureEventBuilder::BuildScrollUpdate(
-5.f, 5.f, 0, blink::WebGestureDevice::kTouchscreen);
scroll_latency = ui::LatencyInfo();
event_latency_metadata = ui::EventLatencyMetadata();
scroll_latency.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_ORIGINAL_COMPONENT);
tracker()->OnInputEvent(scroll_update, &scroll_latency,
&event_latency_metadata);
begin_rwh_timestamp = base::TimeTicks();
EXPECT_TRUE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, &begin_rwh_timestamp));
EXPECT_FALSE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL_COMPONENT, nullptr));
EXPECT_TRUE(scroll_latency.FindLatency(
ui::INPUT_EVENT_LATENCY_SCROLL_UPDATE_ORIGINAL_COMPONENT, nullptr));
EXPECT_EQ(3U, scroll_latency.latency_components().size());
EXPECT_FALSE(
event_latency_metadata.arrived_in_browser_main_timestamp.is_null());
EXPECT_EQ(event_latency_metadata.arrived_in_browser_main_timestamp,
begin_rwh_timestamp);
}
} // namespace content