// Copyright 2026 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "cc/metrics/scroll_jank_v4_frame_timeline_calculator.h" #include #include #include #include #include #include #include #include "base/time/time.h" #include "cc/metrics/event_metrics.h" #include "cc/metrics/scroll_jank_v4_frame.h" #include "cc/test/event_metrics_test_creator.h" #include "components/viz/common/frame_sinks/begin_frame_args.h" #include "testing/gmock/include/gmock/gmock.h" #include "testing/gtest/include/gtest/gtest.h" #include "third_party/abseil-cpp/absl/functional/overload.h" #include "ui/events/types/event_type.h" namespace cc { namespace { using DispatchBeginFrameArgs = ScrollEventMetrics::DispatchBeginFrameArgs; using BeginFrameArgsForScrollJank = ScrollJankV4Frame::BeginFrameArgsForScrollJank; using ScrollDamage = ScrollJankV4Frame::ScrollDamage; using DamagingFrame = ScrollJankV4Frame::DamagingFrame; using NonDamagingFrame = ScrollJankV4Frame::NonDamagingFrame; using ScrollUpdates = ScrollJankV4Frame::Stage::ScrollUpdates; using ScrollStart = ScrollJankV4Frame::Stage::ScrollStart; using ScrollEnd = ScrollJankV4Frame::Stage::ScrollEnd; using Real = ScrollUpdates::Real; using ::testing::ElementsAre; using ::testing::IsEmpty; constexpr uint64_t kSourceId = 999; constexpr base::TimeDelta kVsyncInterval = base::Milliseconds(16); } // namespace class ScrollJankV4FrameTimelineCalculatorTest : public testing::Test { public: ScrollJankV4FrameTimelineCalculatorTest() = default; ~ScrollJankV4FrameTimelineCalculatorTest() override = default; protected: static base::TimeTicks MillisecondsTicks(int ms) { return base::TimeTicks() + base::Milliseconds(ms); } static viz::BeginFrameArgs CreateBeginFrameArgs(int sequence_id, base::TimeTicks frame_time) { return viz::BeginFrameArgs::Create( BEGINFRAME_FROM_HERE, kSourceId, sequence_id, frame_time, /* deadline= */ frame_time + kVsyncInterval / 3, /* interval= */ kVsyncInterval, viz::BeginFrameArgs::BeginFrameArgsType::NORMAL); } static DispatchBeginFrameArgs CreateDispatchBeginFrameArgs( int sequence_id, base::TimeTicks frame_time) { return { .frame_time = frame_time, .interval = kVsyncInterval, .frame_id = viz::BeginFrameId(kSourceId, sequence_id), }; } static std::vector GetResultIds( const ScrollJankV4Frame::Timeline& timeline) { std::vector result_ids; std::transform(timeline.begin(), timeline.end(), std::back_inserter(result_ids), [](const auto& frame) { return frame.args.result_id; }); return result_ids; } static void ExpectResultIdsAreAllUnique( const std::vector& result_ids) { EXPECT_THAT(result_ids, ::testing::UnorderedElementsAreArray( std::set(result_ids.begin(), result_ids.end()))); } EventMetricsTestCreator metrics_creator_; ScrollJankV4FrameTimelineCalculator timeline_calculator_; }; TEST_F(ScrollJankV4FrameTimelineCalculatorTest, NoFrames) { EventMetrics::List events_metrics; viz::BeginFrameArgs presented_args = CreateBeginFrameArgs(42, MillisecondsTicks(666)); auto timeline = timeline_calculator_.CalculateTimeline( events_metrics, presented_args, /* presentation_ts= */ MillisecondsTicks(777)); EXPECT_THAT(timeline, IsEmpty()); } TEST_F(ScrollJankV4FrameTimelineCalculatorTest, IgnoreNonScrollEvents) { EventMetrics::List events_metrics; events_metrics.push_back( metrics_creator_.CreateEventBuilder(ui::EventType::kTouchMoved) .SetTimestamp(MillisecondsTicks(10)) .SetCausedFrameUpdate(false) .Build()); events_metrics.push_back( metrics_creator_.CreateEventBuilder(ui::EventType::kTouchReleased) .SetTimestamp(MillisecondsTicks(11)) .SetCausedFrameUpdate(true) .Build()); viz::BeginFrameArgs presented_args = CreateBeginFrameArgs(42, MillisecondsTicks(666)); auto timeline = timeline_calculator_.CalculateTimeline( events_metrics, presented_args, /* presentation_ts= */ MillisecondsTicks(777)); EXPECT_THAT(timeline, IsEmpty()); } TEST_F(ScrollJankV4FrameTimelineCalculatorTest, OneNonDamagingFrame) { DispatchBeginFrameArgs dispatch_args = CreateDispatchBeginFrameArgs(31, MillisecondsTicks(111)); EventMetrics::List events_metrics; events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(10)) .SetDelta(1.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(dispatch_args) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(11)) .SetDelta(2.0f) .SetCausedFrameUpdate(true) .SetDidScroll(false) .SetDispatchArgs(dispatch_args) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(12)) .SetDelta(3.0f) .SetCausedFrameUpdate(false) .SetDidScroll(true) .SetDispatchArgs(dispatch_args) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(13)) .SetDelta(4.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(dispatch_args) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); viz::BeginFrameArgs presented_args = CreateBeginFrameArgs(42, MillisecondsTicks(666)); auto timeline = timeline_calculator_.CalculateTimeline( events_metrics, presented_args, /* presentation_ts= */ MillisecondsTicks(777)); EXPECT_EQ(timeline.size(), 1u); std::vector result_ids = GetResultIds(timeline); ExpectResultIdsAreAllUnique(result_ids); EXPECT_THAT( timeline, ElementsAre(ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(111), .interval = kVsyncInterval, .result_id = result_ids[0]}, NonDamagingFrame{}, {ScrollJankV4Frame::Stage{ScrollStart{}}, ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(10), .last_input_generation_ts = MillisecondsTicks(13), .has_inertial_input = true, .total_raw_delta_pixels = 10.0f, .max_abs_inertial_raw_delta_pixels = 4.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(5))}}))); // Check that all GSUs were assigned to the single non-damaging frame. for (const auto& event : events_metrics) { EXPECT_EQ(event->AsScroll()->scroll_jank_v4_result_id(), result_ids[0]); } } TEST_F(ScrollJankV4FrameTimelineCalculatorTest, MultipleNonDamagingFrames) { DispatchBeginFrameArgs args1 = CreateDispatchBeginFrameArgs(31, MillisecondsTicks(111)); DispatchBeginFrameArgs args2 = CreateDispatchBeginFrameArgs(32, MillisecondsTicks(222)); DispatchBeginFrameArgs args3 = CreateDispatchBeginFrameArgs(33, MillisecondsTicks(333)); EventMetrics::List events_metrics; events_metrics.push_back( metrics_creator_.FirstGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(10)) .SetDelta(1.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args1) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(11)) .SetDelta(2.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args1) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(12)) .SetDelta(10.0f) .SetCausedFrameUpdate(false) .SetDidScroll(true) .SetDispatchArgs(args2) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(13)) .SetDelta(20.0f) .SetCausedFrameUpdate(false) .SetDidScroll(true) .SetDispatchArgs(args2) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(14)) .SetDelta(100.0f) .SetCausedFrameUpdate(true) .SetDidScroll(false) .SetDispatchArgs(args3) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(15)) .SetDelta(200.0f) .SetCausedFrameUpdate(true) .SetDidScroll(false) .SetDispatchArgs(args3) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); viz::BeginFrameArgs presented_args = CreateBeginFrameArgs(42, MillisecondsTicks(666)); auto timeline = timeline_calculator_.CalculateTimeline( events_metrics, presented_args, /* presentation_ts= */ MillisecondsTicks(777)); EXPECT_EQ(timeline.size(), 3u); std::vector result_ids = GetResultIds(timeline); ExpectResultIdsAreAllUnique(result_ids); EXPECT_THAT( timeline, ElementsAre( ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(111), .interval = kVsyncInterval, .result_id = result_ids[0]}, NonDamagingFrame{}, {ScrollJankV4Frame::Stage{ScrollStart{}}, ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(10), .last_input_generation_ts = MillisecondsTicks(11), .has_inertial_input = false, .total_raw_delta_pixels = 3.0f, .max_abs_inertial_raw_delta_pixels = 0.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(5))}}), ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(222), .interval = kVsyncInterval, .result_id = result_ids[1]}, NonDamagingFrame{}, {ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(12), .last_input_generation_ts = MillisecondsTicks(13), .has_inertial_input = false, .total_raw_delta_pixels = 30.0f, .max_abs_inertial_raw_delta_pixels = 0.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(5))}}), ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(333), .interval = kVsyncInterval, .result_id = result_ids[2]}, NonDamagingFrame{}, {ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(14), .last_input_generation_ts = MillisecondsTicks(15), .has_inertial_input = true, .total_raw_delta_pixels = 300.0f, .max_abs_inertial_raw_delta_pixels = 200.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(5))}}))); // Check that each GSU was assigned to the correct non-damaging frame. EXPECT_EQ(events_metrics[0]->AsScroll()->scroll_jank_v4_result_id(), result_ids[0]); EXPECT_EQ(events_metrics[1]->AsScroll()->scroll_jank_v4_result_id(), result_ids[0]); EXPECT_EQ(events_metrics[2]->AsScroll()->scroll_jank_v4_result_id(), result_ids[1]); EXPECT_EQ(events_metrics[3]->AsScroll()->scroll_jank_v4_result_id(), result_ids[1]); EXPECT_EQ(events_metrics[4]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); EXPECT_EQ(events_metrics[5]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); } TEST_F(ScrollJankV4FrameTimelineCalculatorTest, OneDamagingFrame) { DispatchBeginFrameArgs args1 = CreateDispatchBeginFrameArgs(31, MillisecondsTicks(111)); DispatchBeginFrameArgs args2 = CreateDispatchBeginFrameArgs(32, MillisecondsTicks(222)); DispatchBeginFrameArgs args3 = CreateDispatchBeginFrameArgs(33, MillisecondsTicks(333)); EventMetrics::List events_metrics; events_metrics.push_back( metrics_creator_.FirstGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(10)) .SetDelta(1.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args1) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); // events_metrics[1] below is the single damaging input which causes all // events to be associated with the presented frame. events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(11)) .SetDelta(2.0f) .SetCausedFrameUpdate(true) .SetDidScroll(true) .SetDispatchArgs(args1) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(12)) .SetDelta(10.0f) .SetCausedFrameUpdate(false) .SetDidScroll(true) .SetDispatchArgs(args2) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(13)) .SetDelta(20.0f) .SetCausedFrameUpdate(false) .SetDidScroll(true) .SetDispatchArgs(args2) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(14)) .SetDelta(100.0f) .SetCausedFrameUpdate(true) .SetDidScroll(false) .SetDispatchArgs(args3) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(15)) .SetDelta(200.0f) .SetCausedFrameUpdate(true) .SetDidScroll(false) .SetDispatchArgs(args3) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); viz::BeginFrameArgs presented_args = CreateBeginFrameArgs(42, MillisecondsTicks(666)); auto timeline = timeline_calculator_.CalculateTimeline( events_metrics, presented_args, /* presentation_ts= */ MillisecondsTicks(777)); EXPECT_EQ(timeline.size(), 1u); std::vector result_ids = GetResultIds(timeline); ExpectResultIdsAreAllUnique(result_ids); EXPECT_THAT( timeline, ElementsAre(ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(666), .interval = kVsyncInterval, .result_id = result_ids[0]}, DamagingFrame{.presentation_ts = MillisecondsTicks(777)}, {ScrollJankV4Frame::Stage{ScrollStart{}}, ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(10), .last_input_generation_ts = MillisecondsTicks(15), .has_inertial_input = true, .total_raw_delta_pixels = 333.0f, .max_abs_inertial_raw_delta_pixels = 200.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(5))}}))); // Check that all GSUs were assigned to the single damaging frame. for (const auto& event : events_metrics) { EXPECT_EQ(event->AsScroll()->scroll_jank_v4_result_id(), result_ids[0]); } } // Example from `ScrollJankV4Frame::Timeline CalculateTimeline()`'s // documentation. TEST_F(ScrollJankV4FrameTimelineCalculatorTest, MultipleNonDamagingFramesAndOneDamagingFrame) { DispatchBeginFrameArgs args1 = CreateDispatchBeginFrameArgs(31, MillisecondsTicks(111)); DispatchBeginFrameArgs args2 = CreateDispatchBeginFrameArgs(32, MillisecondsTicks(222)); DispatchBeginFrameArgs args3 = CreateDispatchBeginFrameArgs(33, MillisecondsTicks(333)); DispatchBeginFrameArgs args4 = CreateDispatchBeginFrameArgs(34, MillisecondsTicks(444)); DispatchBeginFrameArgs args5 = CreateDispatchBeginFrameArgs(35, MillisecondsTicks(555)); EventMetrics::List events_metrics; // 1. Non-damaging GSB for BFA1 // 2. Non-damaging GSU for BFA1 // 3. Non-damaging GSU for BFA1 events_metrics.push_back( metrics_creator_.GestureScrollBeginBuilder() .SetTimestamp(MillisecondsTicks(10)) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .SetCausedFrameUpdate(false) .SetDispatchArgs(args1) .Build()); events_metrics.push_back( metrics_creator_.FirstGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(11)) .SetDelta(1.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args1) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(12)) .SetDelta(2.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args1) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); // 4. Non-damaging GSE for BFA2 events_metrics.push_back( metrics_creator_.GestureScrollEndBuilder() .SetTimestamp(MillisecondsTicks(13)) .SetCausedFrameUpdate(false) .SetDispatchArgs(args2) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(5)) .Build()); // 5. Non-damaging GSU for BFA3 // 6. Damaging GSU for BFA3 events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(14)) .SetDelta(10.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args3) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(20)) .Build()); events_metrics.push_back( metrics_creator_.GestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(15)) .SetDelta(20.0f) .SetCausedFrameUpdate(true) .SetDidScroll(true) .SetDispatchArgs(args3) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(20)) .Build()); // 7. Non-damaging GSU for BFA4 // 8. Non-damaging GSU for BFA4 events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(16)) .SetDelta(100.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args4) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(20)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(17)) .SetDelta(200.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args4) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(20)) .Build()); // 9. Damaging GSU for BFA5 // 10. Non-damaging GSU for BFA5 events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(18)) .SetDelta(1000.0f) .SetCausedFrameUpdate(true) .SetDidScroll(true) .SetDispatchArgs(args5) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(20)) .Build()); events_metrics.push_back( metrics_creator_.InertialGestureScrollUpdateBuilder() .SetTimestamp(MillisecondsTicks(19)) .SetDelta(2000.0f) .SetCausedFrameUpdate(false) .SetDidScroll(false) .SetDispatchArgs(args5) .SetScrollBeginArrivalTimestamp(MillisecondsTicks(20)) .Build()); viz::BeginFrameArgs presented_args = CreateBeginFrameArgs(42, MillisecondsTicks(666)); auto timeline = timeline_calculator_.CalculateTimeline( events_metrics, presented_args, /* presentation_ts= */ MillisecondsTicks(777)); EXPECT_EQ(timeline.size(), 3u); std::vector result_ids = GetResultIds(timeline); ExpectResultIdsAreAllUnique(result_ids); EXPECT_THAT( timeline, ElementsAre( ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(111), .interval = kVsyncInterval, .result_id = result_ids[0]}, NonDamagingFrame{}, {ScrollJankV4Frame::Stage{ScrollStart{}}, ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(11), .last_input_generation_ts = MillisecondsTicks(12), .has_inertial_input = false, .total_raw_delta_pixels = 3.0f, .max_abs_inertial_raw_delta_pixels = 0.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(5))}}), ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(222), .interval = kVsyncInterval, .result_id = result_ids[1]}, NonDamagingFrame{}, {ScrollJankV4Frame::Stage{ScrollEnd{}}}), ScrollJankV4Frame( BeginFrameArgsForScrollJank{.frame_time = MillisecondsTicks(666), .interval = kVsyncInterval, .result_id = result_ids[2]}, DamagingFrame{.presentation_ts = MillisecondsTicks(777)}, {ScrollJankV4Frame::Stage{ScrollStart{}}, ScrollJankV4Frame::Stage{ScrollUpdates( Real{ .first_input_generation_ts = MillisecondsTicks(14), .last_input_generation_ts = MillisecondsTicks(19), .has_inertial_input = true, .total_raw_delta_pixels = 3330.0f, .max_abs_inertial_raw_delta_pixels = 2000.0f, }, /* synthetic= */ std::nullopt, /* scroll_begin_arrival_timestamp= */ MillisecondsTicks(20))}}))); // GSB should NOT have a result ID. EXPECT_FALSE( events_metrics[0]->AsScroll()->scroll_jank_v4_result_id().has_value()); // Check that all GSUs and GSEs were assigned to the correct frame. EXPECT_EQ(events_metrics[1]->AsScroll()->scroll_jank_v4_result_id(), result_ids[0]); EXPECT_EQ(events_metrics[2]->AsScroll()->scroll_jank_v4_result_id(), result_ids[0]); EXPECT_EQ(events_metrics[3]->AsScroll()->scroll_jank_v4_result_id(), result_ids[1]); EXPECT_EQ(events_metrics[4]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); EXPECT_EQ(events_metrics[5]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); EXPECT_EQ(events_metrics[6]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); EXPECT_EQ(events_metrics[7]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); EXPECT_EQ(events_metrics[8]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); EXPECT_EQ(events_metrics[9]->AsScroll()->scroll_jank_v4_result_id(), result_ids[2]); } } // namespace cc