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|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/input/input_transfer_handler_android.h"
#include <utility>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "components/input/features.h"
#include "components/input/utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/events/android/motion_event_android_java.h"
#include "ui/events/velocity_tracker/motion_event_generic.h"
namespace content {
using ::testing::_;
using ::testing::Return;
namespace {
const int kSuccessfullyTransferred =
static_cast<int>(TransferInputToVizResult::kSuccessfullyTransferred);
// Arbitrary failure reason.
const int kFailureTransferring = kSuccessfullyTransferred + 1;
class FakeInputTransferHandlerClient final
: public InputTransferHandlerAndroidClient {
public:
gpu::SurfaceHandle GetRootSurfaceHandle() override {
return gpu::kNullSurfaceHandle;
}
MOCK_METHOD((void),
SendStateOnTouchTransfer,
(const ui::MotionEvent&, bool),
(override));
bool IsMojoRIRDelegateConnectionSetup() override { return true; }
};
class MockJniDelegate : public InputTransferHandlerAndroid::JniDelegate {
public:
~MockJniDelegate() override = default;
MOCK_METHOD((int), MaybeTransferInputToViz, (int), (override));
MOCK_METHOD((int), TransferInputToViz, (int), (override));
};
ui::MotionEventAndroidJava GetMotionEventAndroid(
ui::MotionEvent::Action action,
base::TimeTicks event_time,
base::TimeTicks down_time,
const ui::MotionEventAndroid::Pointer& pointer) {
float pix_to_dip = 1.0;
return ui::MotionEventAndroidJava(
nullptr, nullptr, pix_to_dip, 0.f, 0.f, 0.f, event_time, event_time,
down_time, ui::MotionEventAndroid::GetAndroidAction(action), 1, 0, 0, 0,
0, 0, 0, 0, 0, 0, false, &pointer, nullptr, false);
}
} // namespace
// TODO(crbug.com/397939487): Add helper methods to generate test input
// to help simplifying test logic and use mock time source.
class InputTransferHandlerTest : public testing::Test {
public:
InputTransferHandlerTest() : finger_pointer_(0, 0, 0, 0, 0, 0, 0, 0, 0) {}
void SetUp() override {
scoped_feature_list_.InitAndEnableFeature(input::features::kInputOnViz);
if (!input::InputUtils::IsTransferInputToVizSupported()) {
GTEST_SKIP()
<< "The class is only used when transfer input to viz is supported.";
}
input_transfer_handler_client_ =
std::make_unique<FakeInputTransferHandlerClient>();
transfer_handler_ = std::make_unique<InputTransferHandlerAndroid>(
input_transfer_handler_client_.get());
auto delegate = std::unique_ptr<InputTransferHandlerAndroid::JniDelegate>(
new MockJniDelegate());
mock_ = static_cast<MockJniDelegate*>(delegate.get());
transfer_handler_->set_jni_delegate_for_testing(std::move(delegate));
finger_pointer_.tool_type =
static_cast<int>(ui::MotionEvent::ToolType::FINGER);
}
void TearDown() override {
transfer_handler_.reset();
input_transfer_handler_client_.reset();
}
protected:
std::unique_ptr<InputTransferHandlerAndroid> transfer_handler_;
raw_ptr<MockJniDelegate> mock_;
std::unique_ptr<FakeInputTransferHandlerClient>
input_transfer_handler_client_;
ui::MotionEventAndroid::Pointer finger_pointer_;
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
TEST_F(InputTransferHandlerTest, ConsumeEventsIfSequenceTransferred) {
base::TimeTicks event_time = base::TimeTicks::Now();
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, event_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_CALL(*input_transfer_handler_client_,
SendStateOnTouchTransfer(_, /*browser_would_have_handled=*/false))
.Times(1);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event));
ui::MotionEventAndroidJava move_event = GetMotionEventAndroid(
ui::MotionEvent::Action::MOVE, event_time, event_time, finger_pointer_);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(move_event));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(move_event));
ui::MotionEventAndroidJava cancel_event = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, event_time, finger_pointer_);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event));
transfer_handler_->OnTouchEnd(event_time + base::Milliseconds(10));
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kFailureTransferring));
// New events shouldn't be consumed due the expectation set in line above.
EXPECT_FALSE(transfer_handler_->OnTouchEvent(down_event));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(move_event));
}
TEST_F(InputTransferHandlerTest, EmitsTouchMovesSeenAfterTransferHistogram) {
base::TimeTicks event_time = base::TimeTicks::Now();
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, event_time, finger_pointer_);
ui::MotionEventAndroidJava move_event = GetMotionEventAndroid(
ui::MotionEvent::Action::MOVE, event_time, event_time, finger_pointer_);
ui::MotionEventAndroidJava cancel_event = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, event_time, finger_pointer_);
for (int touch_moves_seen = 0; touch_moves_seen <= 2; touch_moves_seen++) {
base::HistogramTester histogram_tester;
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event));
for (int ind = 1; ind <= touch_moves_seen; ind++) {
EXPECT_TRUE(transfer_handler_->OnTouchEvent(move_event));
}
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event));
histogram_tester.ExpectUniqueSample(
InputTransferHandlerAndroid::kTouchMovesSeenHistogram, touch_moves_seen,
1);
}
}
TEST_F(InputTransferHandlerTest, EmitsEventsAfterTransferHistogram) {
base::TimeTicks event_time = base::TimeTicks::Now();
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, event_time, finger_pointer_);
ui::MotionEventAndroidJava move_event = GetMotionEventAndroid(
ui::MotionEvent::Action::MOVE, event_time, event_time, finger_pointer_);
ui::MotionEventAndroidJava cancel_event = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, event_time, finger_pointer_);
const std::vector<std::pair<ui::MotionEvent::Action, int>>
event_expected_histogram_pairs = {
{ui::MotionEvent::Action::DOWN, /*MotionEventAction::kDown*/ 1},
{ui::MotionEvent::Action::UP, /*MotionEventAction::kUp*/ 2},
{ui::MotionEvent::Action::MOVE, /*MotionEventAction::kMove*/ 3},
{ui::MotionEvent::Action::POINTER_DOWN,
/*MotionEventAction::kPointerDown*/ 5},
{ui::MotionEvent::Action::POINTER_UP,
/*MotionEventAction::kPointerUp*/ 6},
};
for (const auto& [event_action, expected_histogram_sample] :
event_expected_histogram_pairs) {
base::HistogramTester histogram_tester;
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event));
ui::MotionEventAndroidJava event = GetMotionEventAndroid(
event_action, event_time, event_time, finger_pointer_);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(event));
histogram_tester.ExpectUniqueSample(
InputTransferHandlerAndroid::kEventsAfterTransferHistogram,
expected_histogram_sample, 1);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event));
}
}
TEST_F(InputTransferHandlerTest, DoNotConsumeEventsIfSequenceNotTransferred) {
base::TimeTicks event_time = base::TimeTicks::Now();
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, event_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kFailureTransferring));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(down_event));
ui::MotionEventAndroidJava move_event = GetMotionEventAndroid(
ui::MotionEvent::Action::MOVE, event_time, event_time, finger_pointer_);
EXPECT_FALSE(transfer_handler_->OnTouchEvent(move_event));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(move_event));
ui::MotionEventAndroidJava cancel_event = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, event_time, finger_pointer_);
EXPECT_FALSE(transfer_handler_->OnTouchEvent(cancel_event));
}
TEST_F(InputTransferHandlerTest, DoNotConsumeNonFingerEvents) {
for (int tool_type = 0;
tool_type <= static_cast<int>(ui::MotionEvent::ToolType::LAST);
tool_type++) {
if (tool_type == static_cast<int>(ui::MotionEvent::ToolType::FINGER)) {
continue;
}
base::TimeTicks event_time = base::TimeTicks::Now();
ui::MotionEventAndroid::Pointer non_finger_pointer(0, 0, 0, 0, 0, 0, 0, 0,
0);
non_finger_pointer.tool_type = tool_type;
ui::MotionEventAndroidJava down_event =
GetMotionEventAndroid(ui::MotionEvent::Action::DOWN, event_time,
event_time, non_finger_pointer);
ui::MotionEventAndroidJava up_event =
GetMotionEventAndroid(ui::MotionEvent::Action::UP, event_time,
event_time, non_finger_pointer);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_)).Times(0);
EXPECT_FALSE(transfer_handler_->OnTouchEvent(down_event));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(up_event));
}
}
TEST_F(InputTransferHandlerTest, EmitsTransferInputToVizResultHistogram) {
for (int transfer_result = 0;
transfer_result <= static_cast<int>(TransferInputToVizResult::kMaxValue);
transfer_result++) {
base::HistogramTester histogram_tester;
base::TimeTicks event_time = base::TimeTicks::Now();
ui::MotionEventAndroid::Pointer pointer = finger_pointer_;
if (transfer_result ==
static_cast<int>(TransferInputToVizResult::kNonFingerToolType)) {
// Arbitrary non-finger tooltype.
pointer.tool_type = static_cast<int>(ui::MotionEvent::ToolType::STYLUS);
}
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, event_time, pointer);
ui::MotionEventAndroidJava up_event = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, event_time, pointer);
if (transfer_result !=
static_cast<int>(TransferInputToVizResult::kNonFingerToolType)) {
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(transfer_result));
}
transfer_handler_->OnTouchEvent(down_event);
transfer_handler_->OnTouchEvent(up_event);
histogram_tester.ExpectUniqueSample(
InputTransferHandlerAndroid::kTransferInputToVizResultHistogram,
static_cast<TransferInputToVizResult>(transfer_result), 1);
}
}
TEST_F(InputTransferHandlerTest, RetryTransfer) {
const std::vector<TransferInputToVizResult> browser_handling_cases = {
TransferInputToVizResult::kSelectionHandlesActive,
TransferInputToVizResult::kCanTriggerBackGesture,
TransferInputToVizResult::kImeIsActive,
TransferInputToVizResult::kRequestedByEmbedder,
TransferInputToVizResult::kMultipleBrowserWindowsOpen};
base::TimeTicks event_time =
base::TimeTicks::Now() - base::Milliseconds(1000);
for (int transfer_result = 0;
transfer_result <= static_cast<int>(TransferInputToVizResult::kMaxValue);
transfer_result++) {
event_time += base::Milliseconds(8);
base::TimeTicks down_time = event_time;
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event =
GetMotionEventAndroid(ui::MotionEvent::Action::CANCEL, event_time,
down_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_CALL(
*input_transfer_handler_client_,
SendStateOnTouchTransfer(_, /*browser_would_have_handled=*/false))
.Times(1);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event));
testing::Mock::VerifyAndClearExpectations(mock_);
testing::Mock::VerifyAndClearExpectations(
input_transfer_handler_client_.get());
event_time += base::Milliseconds(20);
down_time = event_time;
ui::MotionEventAndroidJava down_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_2 =
GetMotionEventAndroid(ui::MotionEvent::Action::CANCEL, event_time,
down_time, finger_pointer_);
bool should_retransfer =
std::find(browser_handling_cases.begin(), browser_handling_cases.end(),
static_cast<TransferInputToVizResult>(transfer_result)) !=
browser_handling_cases.end();
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(static_cast<int>(transfer_result)));
if (should_retransfer) {
EXPECT_CALL(*mock_, TransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
// Expect state is sent with browser_would_have_handled set to true.
EXPECT_CALL(
*input_transfer_handler_client_,
SendStateOnTouchTransfer(_, /*browser_would_have_handled=*/true))
.Times(1);
}
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event_2));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event_2));
event_time += base::Milliseconds(20);
transfer_handler_->OnTouchEnd(event_time);
testing::Mock::VerifyAndClearExpectations(mock_);
testing::Mock::VerifyAndClearExpectations(
input_transfer_handler_client_.get());
}
}
TEST_F(InputTransferHandlerTest,
DropFailedTransferSequenceWhileVizHandlesInput) {
base::TimeTicks event_time = base::TimeTicks::Now() - base::Milliseconds(60);
base::TimeTicks down_time = event_time;
ui::MotionEventAndroidJava down_event_1 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_1 = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, down_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event_1));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event_1));
event_time += base::Milliseconds(20);
down_time = event_time;
ui::MotionEventAndroidJava down_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava move_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::MOVE, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, down_time, finger_pointer_);
// The next sequence fails to transfer.
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kFailureTransferring));
// We haven't received a notification from Viz for TouchEnd yet.
// The new sequence should be dropped, instead of Browser and Viz
// potentially handling the seequence at same time.
base::HistogramTester histogram_tester;
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event_2));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(move_event_2));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event_2));
const int num_dropped_events = 3;
histogram_tester.ExpectUniqueSample(
InputTransferHandlerAndroid::kEventsInDroppedSequenceHistogram,
num_dropped_events, 1);
histogram_tester.ExpectBucketCount(
InputTransferHandlerAndroid::kEventTypesInDroppedSequenceHistogram,
ui::MotionEvent::Action::DOWN, 1);
histogram_tester.ExpectBucketCount(
InputTransferHandlerAndroid::kEventTypesInDroppedSequenceHistogram,
ui::MotionEvent::Action::MOVE, 1);
histogram_tester.ExpectBucketCount(
InputTransferHandlerAndroid::kEventTypesInDroppedSequenceHistogram,
ui::MotionEvent::Action::CANCEL, 1);
}
TEST_F(InputTransferHandlerTest,
BrowserHandlesSequenceAfterTouchEndNotification) {
base::TimeTicks event_time = base::TimeTicks::Now() - base::Milliseconds(60);
base::TimeTicks down_time = event_time;
ui::MotionEventAndroidJava down_event_1 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_1 = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, down_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event_1));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event_1));
event_time += base::Milliseconds(8);
transfer_handler_->OnTouchEnd(event_time);
event_time += base::Milliseconds(20);
down_time = event_time;
ui::MotionEventAndroidJava down_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava move_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::MOVE, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, down_time, finger_pointer_);
// The next sequence fails to transfer.
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kFailureTransferring));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(down_event_2));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(move_event_2));
EXPECT_FALSE(transfer_handler_->OnTouchEvent(cancel_event_2));
}
TEST_F(InputTransferHandlerTest, DoNotRetryTransferIfNoActiveSequence) {
const std::vector<TransferInputToVizResult> browser_handling_cases = {
TransferInputToVizResult::kSelectionHandlesActive,
TransferInputToVizResult::kCanTriggerBackGesture,
TransferInputToVizResult::kImeIsActive,
TransferInputToVizResult::kRequestedByEmbedder,
TransferInputToVizResult::kMultipleBrowserWindowsOpen};
base::TimeTicks event_time =
base::TimeTicks::Now() - base::Milliseconds(1000);
for (int transfer_result = 0;
transfer_result <= static_cast<int>(TransferInputToVizResult::kMaxValue);
transfer_result++) {
event_time += base::Milliseconds(8);
base::TimeTicks down_time = event_time;
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event =
GetMotionEventAndroid(ui::MotionEvent::Action::CANCEL, event_time,
down_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_CALL(
*input_transfer_handler_client_,
SendStateOnTouchTransfer(_, /*browser_would_have_handled=*/false))
.Times(1);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event));
testing::Mock::VerifyAndClearExpectations(mock_);
testing::Mock::VerifyAndClearExpectations(
input_transfer_handler_client_.get());
event_time += base::Milliseconds(8);
transfer_handler_->OnTouchEnd(event_time);
event_time += base::Milliseconds(20);
down_time = event_time;
ui::MotionEventAndroidJava down_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_2 =
GetMotionEventAndroid(ui::MotionEvent::Action::CANCEL, event_time,
down_time, finger_pointer_);
// Do not attempt to retransfer.
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(static_cast<int>(transfer_result)));
EXPECT_CALL(*mock_, TransferInputToViz(_)).Times(0);
if (transfer_result == kSuccessfullyTransferred) {
EXPECT_CALL(
*input_transfer_handler_client_,
SendStateOnTouchTransfer(_, /*browser_would_have_handled=*/false))
.Times(1);
} else {
EXPECT_CALL(*input_transfer_handler_client_,
SendStateOnTouchTransfer(_, _))
.Times(0);
}
const bool consume_sequence = transfer_result == kSuccessfullyTransferred;
EXPECT_EQ(transfer_handler_->OnTouchEvent(down_event_2), consume_sequence);
EXPECT_EQ(transfer_handler_->OnTouchEvent(cancel_event_2),
consume_sequence);
event_time += base::Milliseconds(20);
transfer_handler_->OnTouchEnd(event_time);
testing::Mock::VerifyAndClearExpectations(mock_);
testing::Mock::VerifyAndClearExpectations(
input_transfer_handler_client_.get());
}
}
TEST_F(InputTransferHandlerTest, DownTimeAfterEventTimeBrowserHandlesSequence) {
base::HistogramTester histogram_tester;
base::TimeTicks event_time = base::TimeTicks::Now() - base::Milliseconds(60);
base::TimeTicks down_time = event_time + base::Milliseconds(8);
ui::MotionEventAndroidJava down_event = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_)).Times(0);
EXPECT_FALSE(transfer_handler_->OnTouchEvent(down_event));
histogram_tester.ExpectUniqueSample(
InputTransferHandlerAndroid::kTransferInputToVizResultHistogram,
TransferInputToVizResult::kDownTimeAfterEventTime, 1);
}
TEST_F(InputTransferHandlerTest,
DownTimeAfterEventTimeButActiveTouchSequenceOnViz) {
base::TimeTicks event_time = base::TimeTicks::Now() - base::Milliseconds(60);
base::TimeTicks down_time = event_time;
ui::MotionEventAndroidJava down_event_1 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
event_time += base::Milliseconds(8);
ui::MotionEventAndroidJava cancel_event_1 = GetMotionEventAndroid(
ui::MotionEvent::Action::CANCEL, event_time, down_time, finger_pointer_);
EXPECT_CALL(*mock_, MaybeTransferInputToViz(_))
.WillOnce(Return(kSuccessfullyTransferred));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event_1));
EXPECT_TRUE(transfer_handler_->OnTouchEvent(cancel_event_1));
// Touch end hasn't been received from Viz.
event_time += base::Milliseconds(20);
// Down time is later than the event time of input event.
down_time = event_time + base::Milliseconds(8);
ui::MotionEventAndroidJava down_event_2 = GetMotionEventAndroid(
ui::MotionEvent::Action::DOWN, event_time, down_time, finger_pointer_);
EXPECT_TRUE(transfer_handler_->OnTouchEvent(down_event_2));
}
} // namespace content
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