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Unified Diff: content/renderer/scheduler/renderer_scheduler_impl_unittest.cc

Issue 1058873010: Move blink scheduler implementation into a component (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: updates Created 5 years, 8 months ago
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Index: content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
diff --git a/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc b/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
deleted file mode 100644
index 150be2e1f71636a86958f980a43f3316c03b9eaf..0000000000000000000000000000000000000000
--- a/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
+++ /dev/null
@@ -1,1427 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/renderer/scheduler/renderer_scheduler_impl.h"
-
-#include "base/callback.h"
-#include "cc/output/begin_frame_args.h"
-#include "cc/test/ordered_simple_task_runner.h"
-#include "cc/test/test_now_source.h"
-#include "content/child/scheduler/nestable_task_runner_for_test.h"
-#include "content/child/scheduler/scheduler_message_loop_delegate.h"
-#include "content/test/test_time_source.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace content {
-
-namespace {
-class FakeInputEvent : public blink::WebInputEvent {
- public:
- explicit FakeInputEvent(blink::WebInputEvent::Type event_type)
- : WebInputEvent(sizeof(FakeInputEvent)) {
- type = event_type;
- }
-
- FakeInputEvent(blink::WebInputEvent::Type event_type, int event_modifiers)
- : WebInputEvent(sizeof(FakeInputEvent)) {
- type = event_type;
- modifiers = event_modifiers;
- }
-};
-
-void AppendToVectorTestTask(std::vector<std::string>* vector,
- std::string value) {
- vector->push_back(value);
-}
-
-void AppendToVectorIdleTestTask(std::vector<std::string>* vector,
- std::string value,
- base::TimeTicks deadline) {
- AppendToVectorTestTask(vector, value);
-}
-
-void NullTask() {
-}
-
-void AppendToVectorReentrantTask(
- base::SingleThreadTaskRunner* task_runner,
- std::vector<int>* vector,
- int* reentrant_count,
- int max_reentrant_count) {
- vector->push_back((*reentrant_count)++);
- if (*reentrant_count < max_reentrant_count) {
- task_runner->PostTask(
- FROM_HERE, base::Bind(AppendToVectorReentrantTask,
- base::Unretained(task_runner), vector,
- reentrant_count, max_reentrant_count));
- }
-}
-
-void IdleTestTask(int* run_count,
- base::TimeTicks* deadline_out,
- base::TimeTicks deadline) {
- (*run_count)++;
- *deadline_out = deadline;
-}
-
-int max_idle_task_reposts = 2;
-
-void RepostingIdleTestTask(
- SingleThreadIdleTaskRunner* idle_task_runner,
- int* run_count,
- base::TimeTicks deadline) {
- if ((*run_count + 1) < max_idle_task_reposts) {
- idle_task_runner->PostIdleTask(
- FROM_HERE,
- base::Bind(&RepostingIdleTestTask, base::Unretained(idle_task_runner),
- run_count));
- }
- (*run_count)++;
-}
-
-void UpdateClockToDeadlineIdleTestTask(
- cc::TestNowSource* clock,
- base::SingleThreadTaskRunner* task_runner,
- int* run_count,
- base::TimeTicks deadline) {
- clock->SetNow(deadline);
- // Due to the way in which OrderedSimpleTestRunner orders tasks and the fact
- // that we updated the time within a task, the delayed pending task to call
- // EndIdlePeriod will not happen until after a TaskQueueManager DoWork, so
- // post a normal task here to ensure it runs before the next idle task.
- task_runner->PostTask(FROM_HERE, base::Bind(NullTask));
- (*run_count)++;
-}
-
-void PostingYieldingTestTask(
- RendererSchedulerImpl* scheduler,
- base::SingleThreadTaskRunner* task_runner,
- bool simulate_input,
- bool* should_yield_before,
- bool* should_yield_after) {
- *should_yield_before = scheduler->ShouldYieldForHighPriorityWork();
- task_runner->PostTask(FROM_HERE, base::Bind(NullTask));
- if (simulate_input) {
- scheduler->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- }
- *should_yield_after = scheduler->ShouldYieldForHighPriorityWork();
-}
-
-void AnticipationTestTask(RendererSchedulerImpl* scheduler,
- bool simulate_input,
- bool* is_anticipated_before,
- bool* is_anticipated_after) {
- *is_anticipated_before = scheduler->IsHighPriorityWorkAnticipated();
- if (simulate_input) {
- scheduler->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- }
- *is_anticipated_after = scheduler->IsHighPriorityWorkAnticipated();
-}
-}; // namespace
-
-class RendererSchedulerImplTest : public testing::Test {
- public:
- using Policy = RendererSchedulerImpl::Policy;
-
- RendererSchedulerImplTest()
- : clock_(cc::TestNowSource::Create(5000)),
- mock_task_runner_(new cc::OrderedSimpleTaskRunner(clock_, false)),
- nestable_task_runner_(
- NestableTaskRunnerForTest::Create(mock_task_runner_)),
- scheduler_(new RendererSchedulerImpl(nestable_task_runner_)),
- default_task_runner_(scheduler_->DefaultTaskRunner()),
- compositor_task_runner_(scheduler_->CompositorTaskRunner()),
- loading_task_runner_(scheduler_->LoadingTaskRunner()),
- idle_task_runner_(scheduler_->IdleTaskRunner()),
- timer_task_runner_(scheduler_->TimerTaskRunner()) {
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- }
-
- RendererSchedulerImplTest(base::MessageLoop* message_loop)
- : clock_(cc::TestNowSource::Create(5000)),
- message_loop_(message_loop),
- nestable_task_runner_(
- SchedulerMessageLoopDelegate::Create(message_loop)),
- scheduler_(new RendererSchedulerImpl(nestable_task_runner_)),
- default_task_runner_(scheduler_->DefaultTaskRunner()),
- compositor_task_runner_(scheduler_->CompositorTaskRunner()),
- loading_task_runner_(scheduler_->LoadingTaskRunner()),
- idle_task_runner_(scheduler_->IdleTaskRunner()),
- timer_task_runner_(scheduler_->TimerTaskRunner()) {
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- }
- ~RendererSchedulerImplTest() override {}
-
- void TearDown() override {
- DCHECK(!mock_task_runner_.get() || !message_loop_.get());
- if (mock_task_runner_.get()) {
- // Check that all tests stop posting tasks.
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
- while (mock_task_runner_->RunUntilIdle()) {
- }
- } else {
- message_loop_->RunUntilIdle();
- }
- }
-
- void RunUntilIdle() {
- // Only one of mock_task_runner_ or message_loop_ should be set.
- DCHECK(!mock_task_runner_.get() || !message_loop_.get());
- if (mock_task_runner_.get())
- mock_task_runner_->RunUntilIdle();
- else
- message_loop_->RunUntilIdle();
- }
-
- void DoMainFrame() {
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
- scheduler_->DidCommitFrameToCompositor();
- }
-
- void EnableIdleTasks() { DoMainFrame(); }
-
- Policy CurrentPolicy() { return scheduler_->current_policy_; }
-
- void EnsureUrgentPolicyUpdatePostedOnMainThread() {
- base::AutoLock lock(scheduler_->incoming_signals_lock_);
- scheduler_->EnsureUrgentPolicyUpdatePostedOnMainThread(FROM_HERE);
- }
-
- void ScheduleDelayedPolicyUpdate(base::TimeDelta delay) {
- scheduler_->delayed_update_policy_runner_.SetDeadline(FROM_HERE, delay,
- clock_->Now());
- }
-
- // Helper for posting several tasks of specific types. |task_descriptor| is a
- // string with space delimited task identifiers. The first letter of each
- // task identifier specifies the task type:
- // - 'D': Default task
- // - 'C': Compositor task
- // - 'L': Loading task
- // - 'I': Idle task
- // - 'T': Timer task
- void PostTestTasks(std::vector<std::string>* run_order,
- const std::string& task_descriptor) {
- std::istringstream stream(task_descriptor);
- while (!stream.eof()) {
- std::string task;
- stream >> task;
- switch (task[0]) {
- case 'D':
- default_task_runner_->PostTask(
- FROM_HERE, base::Bind(&AppendToVectorTestTask, run_order, task));
- break;
- case 'C':
- compositor_task_runner_->PostTask(
- FROM_HERE, base::Bind(&AppendToVectorTestTask, run_order, task));
- break;
- case 'L':
- loading_task_runner_->PostTask(
- FROM_HERE, base::Bind(&AppendToVectorTestTask, run_order, task));
- break;
- case 'I':
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&AppendToVectorIdleTestTask, run_order, task));
- break;
- case 'T':
- timer_task_runner_->PostTask(
- FROM_HERE, base::Bind(&AppendToVectorTestTask, run_order, task));
- break;
- default:
- NOTREACHED();
- }
- }
- }
-
- protected:
- static base::TimeDelta priority_escalation_after_input_duration() {
- return base::TimeDelta::FromMilliseconds(
- RendererSchedulerImpl::kPriorityEscalationAfterInputMillis);
- }
-
- static base::TimeDelta maximum_idle_period_duration() {
- return base::TimeDelta::FromMilliseconds(
- SchedulerHelper::kMaximumIdlePeriodMillis);
- }
-
- static base::TimeDelta end_idle_when_hidden_delay() {
- return base::TimeDelta::FromMilliseconds(
- RendererSchedulerImpl::kEndIdleWhenHiddenDelayMillis);
- }
-
- scoped_refptr<cc::TestNowSource> clock_;
- // Only one of mock_task_runner_ or message_loop_ will be set.
- scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner_;
- scoped_ptr<base::MessageLoop> message_loop_;
-
- scoped_refptr<NestableSingleThreadTaskRunner> nestable_task_runner_;
- scoped_ptr<RendererSchedulerImpl> scheduler_;
- scoped_refptr<base::SingleThreadTaskRunner> default_task_runner_;
- scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
- scoped_refptr<base::SingleThreadTaskRunner> loading_task_runner_;
- scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
- scoped_refptr<base::SingleThreadTaskRunner> timer_task_runner_;
-
- DISALLOW_COPY_AND_ASSIGN(RendererSchedulerImplTest);
-};
-
-TEST_F(RendererSchedulerImplTest, TestPostDefaultTask) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "D1 D2 D3 D4");
-
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("D1"), std::string("D2"),
- std::string("D3"), std::string("D4")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestPostDefaultAndCompositor) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "D1 C1");
- RunUntilIdle();
- EXPECT_THAT(run_order, testing::Contains("D1"));
- EXPECT_THAT(run_order, testing::Contains("C1"));
-}
-
-TEST_F(RendererSchedulerImplTest, TestRentrantTask) {
- int count = 0;
- std::vector<int> run_order;
- default_task_runner_->PostTask(
- FROM_HERE, base::Bind(AppendToVectorReentrantTask, default_task_runner_,
- &run_order, &count, 5));
- RunUntilIdle();
-
- EXPECT_THAT(run_order, testing::ElementsAre(0, 1, 2, 3, 4));
-}
-
-TEST_F(RendererSchedulerImplTest, TestPostIdleTask) {
- int run_count = 0;
- base::TimeTicks expected_deadline =
- clock_->Now() + base::TimeDelta::FromMilliseconds(2300);
- base::TimeTicks deadline_in_task;
-
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(100));
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- RunUntilIdle();
- EXPECT_EQ(0, run_count); // Shouldn't run yet as no WillBeginFrame.
-
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
- RunUntilIdle();
- EXPECT_EQ(0, run_count); // Shouldn't run as no DidCommitFrameToCompositor.
-
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(1200));
- scheduler_->DidCommitFrameToCompositor();
- RunUntilIdle();
- EXPECT_EQ(0, run_count); // We missed the deadline.
-
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(800));
- scheduler_->DidCommitFrameToCompositor();
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
- EXPECT_EQ(expected_deadline, deadline_in_task);
-}
-
-TEST_F(RendererSchedulerImplTest, TestRepostingIdleTask) {
- int run_count = 0;
-
- max_idle_task_reposts = 2;
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count));
- EnableIdleTasks();
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
-
- // Reposted tasks shouldn't run until next idle period.
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
-
- EnableIdleTasks();
- RunUntilIdle();
- EXPECT_EQ(2, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestIdleTaskExceedsDeadline) {
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
- int run_count = 0;
-
- // Post two UpdateClockToDeadlineIdleTestTask tasks.
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&UpdateClockToDeadlineIdleTestTask, clock_,
- default_task_runner_, &run_count));
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&UpdateClockToDeadlineIdleTestTask, clock_,
- default_task_runner_, &run_count));
-
- EnableIdleTasks();
- RunUntilIdle();
- // Only the first idle task should execute since it's used up the deadline.
- EXPECT_EQ(1, run_count);
-
- EnableIdleTasks();
- RunUntilIdle();
- // Second task should be run on the next idle period.
- EXPECT_EQ(2, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestPostIdleTaskAfterWakeup) {
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- idle_task_runner_->PostIdleTaskAfterWakeup(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- EnableIdleTasks();
- RunUntilIdle();
- // Shouldn't run yet as no other task woke up the scheduler.
- EXPECT_EQ(0, run_count);
-
- idle_task_runner_->PostIdleTaskAfterWakeup(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- EnableIdleTasks();
- RunUntilIdle();
- // Another after wakeup idle task shouldn't wake the scheduler.
- EXPECT_EQ(0, run_count);
-
- default_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
-
- RunUntilIdle();
- EnableIdleTasks(); // Must start a new idle period before idle task runs.
- RunUntilIdle();
- // Execution of default task queue task should trigger execution of idle task.
- EXPECT_EQ(2, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestPostIdleTaskAfterWakeupWhileAwake) {
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- idle_task_runner_->PostIdleTaskAfterWakeup(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
- default_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
-
- RunUntilIdle();
- EnableIdleTasks(); // Must start a new idle period before idle task runs.
- RunUntilIdle();
- // Should run as the scheduler was already awakened by the normal task.
- EXPECT_EQ(1, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestPostIdleTaskWakesAfterWakeupIdleTask) {
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- idle_task_runner_->PostIdleTaskAfterWakeup(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- EnableIdleTasks();
- RunUntilIdle();
- // Must start a new idle period before after-wakeup idle task runs.
- EnableIdleTasks();
- RunUntilIdle();
- // Normal idle task should wake up after-wakeup idle task.
- EXPECT_EQ(2, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestDelayedEndIdlePeriodCanceled) {
- int run_count = 0;
-
- base::TimeTicks deadline_in_task;
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- // Trigger the beginning of an idle period for 1000ms.
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
- DoMainFrame();
-
- // End the idle period early (after 500ms), and send a WillBeginFrame which
- // specifies that the next idle period should end 1000ms from now.
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(500));
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
-
- RunUntilIdle();
- EXPECT_EQ(0, run_count); // Not currently in an idle period.
-
- // Trigger the start of the idle period before the task to end the previous
- // idle period has been triggered.
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(400));
- scheduler_->DidCommitFrameToCompositor();
-
- // Post a task which simulates running until after the previous end idle
- // period delayed task was scheduled for
- scheduler_->DefaultTaskRunner()->PostTask(FROM_HERE, base::Bind(NullTask));
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(300));
-
- RunUntilIdle();
- EXPECT_EQ(1, run_count); // We should still be in the new idle period.
-}
-
-TEST_F(RendererSchedulerImplTest, TestDefaultPolicy) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "L1 I1 D1 C1 D2 C2");
-
- EnableIdleTasks();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("L1"), std::string("D1"),
- std::string("C1"), std::string("D2"),
- std::string("C2"), std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestCompositorPolicy) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "L1 I1 D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- EnableIdleTasks();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2"),
- std::string("L1"), std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestCompositorPolicy_DidAnimateForInput) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "I1 D1 C1 D2 C2");
-
- scheduler_->DidAnimateForInputOnCompositorThread();
- EnableIdleTasks();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2"),
- std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestTouchstartPolicy) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "L1 D1 C1 D2 C2 T1 T2");
-
- // Observation of touchstart should defer execution of idle and loading tasks.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2"),
- std::string("T1"), std::string("T2")));
-
- // Meta events like TapDown/FlingCancel shouldn't affect the priority.
- run_order.clear();
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingCancel));
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureTapDown));
- RunUntilIdle();
- EXPECT_TRUE(run_order.empty());
-
- // Action events like ScrollBegin will kick us back into compositor priority,
- // allowing service of the timer, loading and idle queues.
- run_order.clear();
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureScrollBegin));
- RunUntilIdle();
-
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("L1")));
-}
-
-TEST_F(RendererSchedulerImplTest,
- DidReceiveInputEventOnCompositorThread_IgnoresMouseMove_WhenMouseUp) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "I1 D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::MouseMove));
- EnableIdleTasks();
- RunUntilIdle();
- // Note compositor tasks are not prioritized.
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("D1"), std::string("C1"),
- std::string("D2"), std::string("C2"),
- std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest,
- DidReceiveInputEventOnCompositorThread_MouseMove_WhenMouseDown) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "I1 D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(FakeInputEvent(
- blink::WebInputEvent::MouseMove, blink::WebInputEvent::LeftButtonDown));
- EnableIdleTasks();
- RunUntilIdle();
- // Note compositor tasks are prioritized.
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2"),
- std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest,
- DidReceiveInputEventOnCompositorThread_MouseWheel) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "I1 D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::MouseWheel));
- EnableIdleTasks();
- RunUntilIdle();
- // Note compositor tasks are prioritized.
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2"),
- std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest,
- DidReceiveInputEventOnCompositorThread_IgnoresKeyboardEvents) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "I1 D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::KeyDown));
- EnableIdleTasks();
- RunUntilIdle();
- // Note compositor tasks are not prioritized.
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("D1"), std::string("C1"),
- std::string("D2"), std::string("C2"),
- std::string("I1")));
-}
-
-TEST_F(RendererSchedulerImplTest,
- TestCompositorPolicyDoesNotStarveDefaultTasks) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "D1 C1");
-
- for (int i = 0; i < 20; i++) {
- compositor_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
- }
- PostTestTasks(&run_order, "C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- RunUntilIdle();
- // Ensure that the default D1 task gets to run at some point before the final
- // C2 compositor task.
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("D1"),
- std::string("C2")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestCompositorPolicyEnds) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- DoMainFrame();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2")));
-
- run_order.clear();
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(1000));
- PostTestTasks(&run_order, "D1 C1 D2 C2");
-
- // Compositor policy mode should have ended now that the clock has advanced.
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("D1"), std::string("C1"),
- std::string("D2"), std::string("C2")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestTouchstartPolicyEndsAfterTimeout) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "L1 D1 C1 D2 C2");
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2")));
-
- run_order.clear();
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(1000));
-
- // Don't post any compositor tasks to simulate a very long running event
- // handler.
- PostTestTasks(&run_order, "D1 D2");
-
- // Touchstart policy mode should have ended now that the clock has advanced.
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("L1"), std::string("D1"),
- std::string("D2")));
-}
-
-TEST_F(RendererSchedulerImplTest,
- TestTouchstartPolicyEndsAfterConsecutiveTouchmoves) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "L1 D1 C1 D2 C2");
-
- // Observation of touchstart should defer execution of idle and loading tasks.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- DoMainFrame();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("C1"), std::string("C2"),
- std::string("D1"), std::string("D2")));
-
- // Receiving the first touchmove will not affect scheduler priority.
- run_order.clear();
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchMove));
- DoMainFrame();
- RunUntilIdle();
- EXPECT_TRUE(run_order.empty());
-
- // Receiving the second touchmove will kick us back into compositor priority.
- run_order.clear();
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchMove));
- RunUntilIdle();
- EXPECT_THAT(run_order, testing::ElementsAre(std::string("L1")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestIsHighPriorityWorkAnticipated) {
- bool is_anticipated_before = false;
- bool is_anticipated_after = false;
-
- bool simulate_input = false;
- default_task_runner_->PostTask(
- FROM_HERE,
- base::Bind(&AnticipationTestTask, scheduler_.get(), simulate_input,
- &is_anticipated_before, &is_anticipated_after));
- RunUntilIdle();
- // In its default state, without input receipt, the scheduler should indicate
- // that no high-priority is anticipated.
- EXPECT_FALSE(is_anticipated_before);
- EXPECT_FALSE(is_anticipated_after);
-
- simulate_input = true;
- default_task_runner_->PostTask(
- FROM_HERE,
- base::Bind(&AnticipationTestTask, scheduler_.get(), simulate_input,
- &is_anticipated_before, &is_anticipated_after));
- RunUntilIdle();
- // When input is received, the scheduler should indicate that high-priority
- // work is anticipated.
- EXPECT_FALSE(is_anticipated_before);
- EXPECT_TRUE(is_anticipated_after);
-
- clock_->AdvanceNow(priority_escalation_after_input_duration() * 2);
- simulate_input = false;
- default_task_runner_->PostTask(
- FROM_HERE,
- base::Bind(&AnticipationTestTask, scheduler_.get(), simulate_input,
- &is_anticipated_before, &is_anticipated_after));
- RunUntilIdle();
- // Without additional input, the scheduler should indicate that high-priority
- // work is no longer anticipated.
- EXPECT_FALSE(is_anticipated_before);
- EXPECT_FALSE(is_anticipated_after);
-}
-
-TEST_F(RendererSchedulerImplTest, TestShouldYield) {
- bool should_yield_before = false;
- bool should_yield_after = false;
-
- default_task_runner_->PostTask(
- FROM_HERE, base::Bind(&PostingYieldingTestTask, scheduler_.get(),
- default_task_runner_, false, &should_yield_before,
- &should_yield_after));
- RunUntilIdle();
- // Posting to default runner shouldn't cause yielding.
- EXPECT_FALSE(should_yield_before);
- EXPECT_FALSE(should_yield_after);
-
- default_task_runner_->PostTask(
- FROM_HERE, base::Bind(&PostingYieldingTestTask, scheduler_.get(),
- compositor_task_runner_, false,
- &should_yield_before, &should_yield_after));
- RunUntilIdle();
- // Posting while not in compositor priority shouldn't cause yielding.
- EXPECT_FALSE(should_yield_before);
- EXPECT_FALSE(should_yield_after);
-
- default_task_runner_->PostTask(
- FROM_HERE, base::Bind(&PostingYieldingTestTask, scheduler_.get(),
- compositor_task_runner_, true, &should_yield_before,
- &should_yield_after));
- RunUntilIdle();
- // We should be able to switch to compositor priority mid-task.
- EXPECT_FALSE(should_yield_before);
- EXPECT_TRUE(should_yield_after);
-
- // Receiving a touchstart should immediately trigger yielding, even if
- // there's no immediately pending work in the compositor queue.
- EXPECT_FALSE(scheduler_->ShouldYieldForHighPriorityWork());
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- EXPECT_TRUE(scheduler_->ShouldYieldForHighPriorityWork());
- RunUntilIdle();
-}
-
-TEST_F(RendererSchedulerImplTest, SlowInputEvent) {
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-
- // An input event should bump us into input priority.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // Simulate the input event being queued for a very long time. The compositor
- // task we post here represents the enqueued input task.
- clock_->AdvanceNow(priority_escalation_after_input_duration() * 2);
- compositor_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
- RunUntilIdle();
-
- // Even though we exceeded the input priority escalation period, we should
- // still be in compositor priority since the input remains queued.
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // Simulate the input event triggering a composition. This should start the
- // countdown for going back into normal policy.
- DoMainFrame();
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // After the escalation period ends we should go back into normal mode.
- clock_->AdvanceNow(priority_escalation_after_input_duration() * 2);
- RunUntilIdle();
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-}
-
-TEST_F(RendererSchedulerImplTest, SlowNoOpInputEvent) {
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-
- // An input event should bump us into input priority.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // Simulate the input event being queued for a very long time. The compositor
- // task we post here represents the enqueued input task.
- clock_->AdvanceNow(priority_escalation_after_input_duration() * 2);
- compositor_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
- RunUntilIdle();
-
- // Even though we exceeded the input priority escalation period, we should
- // still be in compositor priority since the input remains queued.
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // If we let the compositor queue drain, we should fall out of input
- // priority.
- clock_->AdvanceNow(priority_escalation_after_input_duration() * 2);
- RunUntilIdle();
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-}
-
-TEST_F(RendererSchedulerImplTest, NoOpInputEvent) {
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-
- // An input event should bump us into input priority.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureFlingStart));
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // If nothing else happens after this, we should drop out of compositor
- // priority after the escalation period ends and stop polling.
- clock_->AdvanceNow(priority_escalation_after_input_duration() * 2);
- RunUntilIdle();
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
- EXPECT_FALSE(mock_task_runner_->HasPendingTasks());
-}
-
-TEST_F(RendererSchedulerImplTest, NoOpInputEventExtendsEscalationPeriod) {
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-
- // Simulate one handled input event.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureScrollBegin));
- RunUntilIdle();
- DoMainFrame();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // Send a no-op input event in the middle of the escalation period.
- clock_->AdvanceNow(priority_escalation_after_input_duration() / 2);
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureScrollUpdate));
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // The escalation period should have been extended by the new input event.
- clock_->AdvanceNow(3 * priority_escalation_after_input_duration() / 4);
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- clock_->AdvanceNow(priority_escalation_after_input_duration() / 2);
- RunUntilIdle();
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-}
-
-TEST_F(RendererSchedulerImplTest, InputArrivesAfterBeginFrame) {
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-
- cc::BeginFrameArgs args = cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL);
- clock_->AdvanceNow(priority_escalation_after_input_duration() / 2);
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::GestureScrollBegin));
-
- // Simulate a BeginMainFrame task from the past.
- clock_->AdvanceNow(2 * priority_escalation_after_input_duration());
- scheduler_->WillBeginFrame(args);
- scheduler_->DidCommitFrameToCompositor();
-
- // This task represents the queued-up input event.
- compositor_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
-
- // Should remain in input priority policy since the input event hasn't been
- // processed yet.
- clock_->AdvanceNow(2 * priority_escalation_after_input_duration());
- RunUntilIdle();
- EXPECT_EQ(Policy::COMPOSITOR_PRIORITY, CurrentPolicy());
-
- // Process the input event with a new BeginMainFrame.
- DoMainFrame();
- clock_->AdvanceNow(2 * priority_escalation_after_input_duration());
- RunUntilIdle();
- EXPECT_EQ(Policy::NORMAL, CurrentPolicy());
-}
-
-class RendererSchedulerImplForTest : public RendererSchedulerImpl {
- public:
- RendererSchedulerImplForTest(
- scoped_refptr<NestableSingleThreadTaskRunner> main_task_runner)
- : RendererSchedulerImpl(main_task_runner), update_policy_count_(0) {}
-
- void UpdatePolicyLocked(UpdateType update_type) override {
- update_policy_count_++;
- RendererSchedulerImpl::UpdatePolicyLocked(update_type);
- }
-
- int update_policy_count_;
-};
-
-TEST_F(RendererSchedulerImplTest, OnlyOnePendingUrgentPolicyUpdatey) {
- RendererSchedulerImplForTest* mock_scheduler =
- new RendererSchedulerImplForTest(nestable_task_runner_);
- scheduler_.reset(mock_scheduler);
-
- EnsureUrgentPolicyUpdatePostedOnMainThread();
- EnsureUrgentPolicyUpdatePostedOnMainThread();
- EnsureUrgentPolicyUpdatePostedOnMainThread();
- EnsureUrgentPolicyUpdatePostedOnMainThread();
-
- RunUntilIdle();
-
- EXPECT_EQ(1, mock_scheduler->update_policy_count_);
-}
-
-TEST_F(RendererSchedulerImplTest, OnePendingDelayedAndOneUrgentUpdatePolicy) {
- RendererSchedulerImplForTest* mock_scheduler =
- new RendererSchedulerImplForTest(nestable_task_runner_);
- scheduler_.reset(mock_scheduler);
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
-
- ScheduleDelayedPolicyUpdate(base::TimeDelta::FromMilliseconds(1));
- EnsureUrgentPolicyUpdatePostedOnMainThread();
-
- RunUntilIdle();
-
- // We expect both the urgent and the delayed updates to run.
- EXPECT_EQ(2, mock_scheduler->update_policy_count_);
-}
-
-TEST_F(RendererSchedulerImplTest, OneUrgentAndOnePendingDelayedUpdatePolicy) {
- RendererSchedulerImplForTest* mock_scheduler =
- new RendererSchedulerImplForTest(nestable_task_runner_);
- scheduler_.reset(mock_scheduler);
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
-
- EnsureUrgentPolicyUpdatePostedOnMainThread();
- ScheduleDelayedPolicyUpdate(base::TimeDelta::FromMilliseconds(1));
-
- RunUntilIdle();
-
- // We expect both the urgent and the delayed updates to run.
- EXPECT_EQ(2, mock_scheduler->update_policy_count_);
-}
-
-TEST_F(RendererSchedulerImplTest, UpdatePolicyCountTriggeredByOneInputEvent) {
- RendererSchedulerImplForTest* mock_scheduler =
- new RendererSchedulerImplForTest(nestable_task_runner_);
- scheduler_.reset(mock_scheduler);
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
-
- RunUntilIdle();
-
- // We expect an urgent policy update followed by a delayed one 100ms later.
- EXPECT_EQ(2, mock_scheduler->update_policy_count_);
-}
-
-TEST_F(RendererSchedulerImplTest, UpdatePolicyCountTriggeredByTwoInputEvents) {
- RendererSchedulerImplForTest* mock_scheduler =
- new RendererSchedulerImplForTest(nestable_task_runner_);
- scheduler_.reset(mock_scheduler);
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchMove));
-
- RunUntilIdle();
-
- // We expect an urgent policy update followed by a delayed one 100ms later.
- EXPECT_EQ(2, mock_scheduler->update_policy_count_);
-}
-
-TEST_F(RendererSchedulerImplTest, EnsureUpdatePolicyNotTriggeredTooOften) {
- RendererSchedulerImplForTest* mock_scheduler =
- new RendererSchedulerImplForTest(nestable_task_runner_);
- scheduler_.reset(mock_scheduler);
- scheduler_->GetSchedulerHelperForTesting()->SetTimeSourceForTesting(
- make_scoped_ptr(new TestTimeSource(clock_)));
- scheduler_->GetSchedulerHelperForTesting()
- ->GetTaskQueueManagerForTesting()
- ->SetTimeSourceForTesting(make_scoped_ptr(new TestTimeSource(clock_)));
- mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true);
-
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchMove));
-
- // We expect the first call to IsHighPriorityWorkAnticipated to be called
- // after recieving an input event (but before the UpdateTask was processed) to
- // call UpdatePolicy.
- EXPECT_EQ(0, mock_scheduler->update_policy_count_);
- scheduler_->IsHighPriorityWorkAnticipated();
- EXPECT_EQ(1, mock_scheduler->update_policy_count_);
- // Subsequent calls should not call UpdatePolicy.
- scheduler_->IsHighPriorityWorkAnticipated();
- scheduler_->IsHighPriorityWorkAnticipated();
- scheduler_->IsHighPriorityWorkAnticipated();
- scheduler_->ShouldYieldForHighPriorityWork();
- scheduler_->ShouldYieldForHighPriorityWork();
- scheduler_->ShouldYieldForHighPriorityWork();
- scheduler_->ShouldYieldForHighPriorityWork();
-
- EXPECT_EQ(1, mock_scheduler->update_policy_count_);
-
- RunUntilIdle();
- // We expect both the urgent and the delayed updates to run in addition to the
- // earlier updated cause by IsHighPriorityWorkAnticipated.
- EXPECT_EQ(3, mock_scheduler->update_policy_count_);
-}
-
-class RendererSchedulerImplWithMessageLoopTest
- : public RendererSchedulerImplTest {
- public:
- RendererSchedulerImplWithMessageLoopTest()
- : RendererSchedulerImplTest(new base::MessageLoop()) {}
- ~RendererSchedulerImplWithMessageLoopTest() override {}
-
- void PostFromNestedRunloop(std::vector<
- std::pair<SingleThreadIdleTaskRunner::IdleTask, bool>>* tasks) {
- base::MessageLoop::ScopedNestableTaskAllower allow(message_loop_.get());
- for (std::pair<SingleThreadIdleTaskRunner::IdleTask, bool>& pair : *tasks) {
- if (pair.second) {
- idle_task_runner_->PostIdleTask(FROM_HERE, pair.first);
- } else {
- idle_task_runner_->PostNonNestableIdleTask(FROM_HERE, pair.first);
- }
- }
- EnableIdleTasks();
- message_loop_->RunUntilIdle();
- }
-
- private:
- DISALLOW_COPY_AND_ASSIGN(RendererSchedulerImplWithMessageLoopTest);
-};
-
-TEST_F(RendererSchedulerImplWithMessageLoopTest,
- NonNestableIdleTaskDoesntExecuteInNestedLoop) {
- std::vector<std::string> order;
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&AppendToVectorIdleTestTask, &order, std::string("1")));
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&AppendToVectorIdleTestTask, &order, std::string("2")));
-
- std::vector<std::pair<SingleThreadIdleTaskRunner::IdleTask, bool>>
- tasks_to_post_from_nested_loop;
- tasks_to_post_from_nested_loop.push_back(std::make_pair(
- base::Bind(&AppendToVectorIdleTestTask, &order, std::string("3")),
- false));
- tasks_to_post_from_nested_loop.push_back(std::make_pair(
- base::Bind(&AppendToVectorIdleTestTask, &order, std::string("4")), true));
- tasks_to_post_from_nested_loop.push_back(std::make_pair(
- base::Bind(&AppendToVectorIdleTestTask, &order, std::string("5")), true));
-
- default_task_runner_->PostTask(
- FROM_HERE,
- base::Bind(
- &RendererSchedulerImplWithMessageLoopTest::PostFromNestedRunloop,
- base::Unretained(this),
- base::Unretained(&tasks_to_post_from_nested_loop)));
-
- EnableIdleTasks();
- RunUntilIdle();
- // Note we expect task 3 to run last because it's non-nestable.
- EXPECT_THAT(order, testing::ElementsAre(std::string("1"), std::string("2"),
- std::string("4"), std::string("5"),
- std::string("3")));
-}
-
-TEST_F(RendererSchedulerImplTest, TestLongIdlePeriod) {
- base::TimeTicks expected_deadline =
- clock_->Now() + maximum_idle_period_duration();
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- RunUntilIdle();
- EXPECT_EQ(0, run_count); // Shouldn't run yet as no idle period.
-
- scheduler_->BeginFrameNotExpectedSoon();
- RunUntilIdle();
- EXPECT_EQ(1, run_count); // Should have run in a long idle time.
- EXPECT_EQ(expected_deadline, deadline_in_task);
-}
-
-TEST_F(RendererSchedulerImplTest, TestLongIdlePeriodWithPendingDelayedTask) {
- base::TimeDelta pending_task_delay = base::TimeDelta::FromMilliseconds(30);
- base::TimeTicks expected_deadline = clock_->Now() + pending_task_delay;
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
- default_task_runner_->PostDelayedTask(
- FROM_HERE, base::Bind(&NullTask), pending_task_delay);
-
- scheduler_->BeginFrameNotExpectedSoon();
- RunUntilIdle();
- EXPECT_EQ(1, run_count); // Should have run in a long idle time.
- EXPECT_EQ(expected_deadline, deadline_in_task);
-}
-
-TEST_F(RendererSchedulerImplTest,
- TestLongIdlePeriodWithLatePendingDelayedTask) {
- base::TimeDelta pending_task_delay = base::TimeDelta::FromMilliseconds(10);
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- default_task_runner_->PostDelayedTask(
- FROM_HERE, base::Bind(&NullTask), pending_task_delay);
-
- // Advance clock until after delayed task was meant to be run.
- clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(20));
-
- // Post an idle task and BeginFrameNotExpectedSoon to initiate a long idle
- // period. Since there is a late pending delayed task this shouldn't actually
- // start an idle period.
- idle_task_runner_->PostIdleTask(
- FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
- scheduler_->BeginFrameNotExpectedSoon();
- RunUntilIdle();
- EXPECT_EQ(0, run_count);
-
- // After the delayed task has been run we should trigger an idle period.
- clock_->AdvanceNow(maximum_idle_period_duration());
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestLongIdlePeriodRepeating) {
- int run_count = 0;
-
- max_idle_task_reposts = 3;
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count));
-
- scheduler_->BeginFrameNotExpectedSoon();
- RunUntilIdle();
- EXPECT_EQ(1, run_count); // Should only run once per idle period.
-
- // Advance time to start of next long idle period and check task reposted task
- // gets run.
- clock_->AdvanceNow(maximum_idle_period_duration());
- RunUntilIdle();
- EXPECT_EQ(2, run_count);
-
- // Advance time to start of next long idle period then end idle period with a
- // new BeginMainFrame and check idle task doesn't run.
- clock_->AdvanceNow(maximum_idle_period_duration());
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
- RunUntilIdle();
- EXPECT_EQ(2, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestLongIdlePeriodDoesNotWakeScheduler) {
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- // Start a long idle period and get the time it should end.
- scheduler_->BeginFrameNotExpectedSoon();
- // The scheduler should not run the initiate_next_long_idle_period task if
- // there are no idle tasks and no other task woke up the scheduler, thus
- // the idle period deadline shouldn't update at the end of the current long
- // idle period.
- base::TimeTicks idle_period_deadline =
- scheduler_->CurrentIdleTaskDeadlineForTesting();
- clock_->AdvanceNow(maximum_idle_period_duration());
- RunUntilIdle();
-
- base::TimeTicks new_idle_period_deadline =
- scheduler_->CurrentIdleTaskDeadlineForTesting();
- EXPECT_EQ(idle_period_deadline, new_idle_period_deadline);
-
- // Posting a after-wakeup idle task also shouldn't wake the scheduler or
- // initiate the next long idle period.
- idle_task_runner_->PostIdleTaskAfterWakeup(
- FROM_HERE,
- base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
- RunUntilIdle();
- new_idle_period_deadline = scheduler_->CurrentIdleTaskDeadlineForTesting();
- EXPECT_EQ(idle_period_deadline, new_idle_period_deadline);
- EXPECT_EQ(0, run_count);
-
- // Running a normal task should initiate a new long idle period though.
- default_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask));
- RunUntilIdle();
- new_idle_period_deadline = scheduler_->CurrentIdleTaskDeadlineForTesting();
- EXPECT_EQ(idle_period_deadline + maximum_idle_period_duration(),
- new_idle_period_deadline);
-
- EXPECT_EQ(1, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TestLongIdlePeriodInTouchStartPolicy) {
- base::TimeTicks deadline_in_task;
- int run_count = 0;
-
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&IdleTestTask, &run_count, &deadline_in_task));
-
- // Observation of touchstart should defer the start of the long idle period.
- scheduler_->DidReceiveInputEventOnCompositorThread(
- FakeInputEvent(blink::WebInputEvent::TouchStart));
- scheduler_->BeginFrameNotExpectedSoon();
- RunUntilIdle();
- EXPECT_EQ(0, run_count);
-
- // The long idle period should start after the touchstart policy has finished.
- clock_->AdvanceNow(priority_escalation_after_input_duration());
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
-}
-
-void TestCanExceedIdleDeadlineIfRequiredTask(RendererScheduler* scheduler,
- bool* can_exceed_idle_deadline_out,
- int* run_count,
- base::TimeTicks deadline) {
- *can_exceed_idle_deadline_out = scheduler->CanExceedIdleDeadlineIfRequired();
- (*run_count)++;
-}
-
-TEST_F(RendererSchedulerImplTest, CanExceedIdleDeadlineIfRequired) {
- int run_count = 0;
- bool can_exceed_idle_deadline = false;
-
- // Should return false if not in an idle period.
- EXPECT_FALSE(scheduler_->CanExceedIdleDeadlineIfRequired());
-
- // Should return false for short idle periods.
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&TestCanExceedIdleDeadlineIfRequiredTask, scheduler_.get(),
- &can_exceed_idle_deadline, &run_count));
- EnableIdleTasks();
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
- EXPECT_FALSE(can_exceed_idle_deadline);
-
- // Should return false for a long idle period which is shortened due to a
- // pending delayed task.
- default_task_runner_->PostDelayedTask(FROM_HERE, base::Bind(&NullTask),
- base::TimeDelta::FromMilliseconds(10));
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&TestCanExceedIdleDeadlineIfRequiredTask, scheduler_.get(),
- &can_exceed_idle_deadline, &run_count));
- scheduler_->BeginFrameNotExpectedSoon();
- RunUntilIdle();
- EXPECT_EQ(2, run_count);
- EXPECT_FALSE(can_exceed_idle_deadline);
-
- // Next long idle period will be for the maximum time, so
- // CanExceedIdleDeadlineIfRequired should return true.
- clock_->AdvanceNow(maximum_idle_period_duration());
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&TestCanExceedIdleDeadlineIfRequiredTask, scheduler_.get(),
- &can_exceed_idle_deadline, &run_count));
- RunUntilIdle();
- EXPECT_EQ(3, run_count);
- EXPECT_TRUE(can_exceed_idle_deadline);
-
- // Next long idle period will be for the maximum time, so
- // CanExceedIdleDeadlineIfRequired should return true.
- scheduler_->WillBeginFrame(cc::BeginFrameArgs::Create(
- BEGINFRAME_FROM_HERE, clock_->Now(), base::TimeTicks(),
- base::TimeDelta::FromMilliseconds(1000), cc::BeginFrameArgs::NORMAL));
- EXPECT_FALSE(scheduler_->CanExceedIdleDeadlineIfRequired());
-}
-
-TEST_F(RendererSchedulerImplTest, TestRendererHiddenIdlePeriod) {
- int run_count = 0;
-
- idle_task_runner_->PostIdleTask(
- FROM_HERE,
- base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count));
-
- // Renderer should start in visible state.
- RunUntilIdle();
- EXPECT_EQ(0, run_count);
-
- // When we hide the renderer it should start an idle period.
- scheduler_->OnRendererHidden();
- RunUntilIdle();
- EXPECT_EQ(1, run_count);
-
- // Advance time to start of next long idle period and check task reposted task
- // gets run.
- clock_->AdvanceNow(maximum_idle_period_duration());
- RunUntilIdle();
- EXPECT_EQ(2, run_count);
-
- // Advance time by amount of time by the maximum amount of time we execute
- // idle tasks when hidden (plus some slack) - idle period should have ended.
- clock_->AdvanceNow(end_idle_when_hidden_delay() +
- base::TimeDelta::FromMilliseconds(10));
- RunUntilIdle();
- EXPECT_EQ(2, run_count);
-}
-
-TEST_F(RendererSchedulerImplTest, TimerQueueEnabledByDefault) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "T1 T2");
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("T1"), std::string("T2")));
-}
-
-TEST_F(RendererSchedulerImplTest, SuspendAndResumeTimerQueue) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "T1 T2");
-
- scheduler_->SuspendTimerQueue();
- RunUntilIdle();
- EXPECT_TRUE(run_order.empty());
-
- scheduler_->ResumeTimerQueue();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("T1"), std::string("T2")));
-}
-
-TEST_F(RendererSchedulerImplTest, MultipleSuspendsNeedMultipleResumes) {
- std::vector<std::string> run_order;
- PostTestTasks(&run_order, "T1 T2");
-
- scheduler_->SuspendTimerQueue();
- scheduler_->SuspendTimerQueue();
- scheduler_->SuspendTimerQueue();
- RunUntilIdle();
- EXPECT_TRUE(run_order.empty());
-
- scheduler_->ResumeTimerQueue();
- RunUntilIdle();
- EXPECT_TRUE(run_order.empty());
-
- scheduler_->ResumeTimerQueue();
- RunUntilIdle();
- EXPECT_TRUE(run_order.empty());
-
- scheduler_->ResumeTimerQueue();
- RunUntilIdle();
- EXPECT_THAT(run_order,
- testing::ElementsAre(std::string("T1"), std::string("T2")));
-}
-
-} // namespace content
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