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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "components/scheduler/renderer/throttling_helper.h" | |
| 6 | |
| 7 #include "base/callback.h" | |
| 8 #include "base/memory/scoped_ptr.h" | |
| 9 #include "base/test/simple_test_tick_clock.h" | |
| 10 #include "cc/test/ordered_simple_task_runner.h" | |
| 11 #include "components/scheduler/base/test_time_source.h" | |
| 12 #include "components/scheduler/child/scheduler_tqm_delegate_for_test.h" | |
| 13 #include "components/scheduler/renderer/renderer_scheduler_impl.h" | |
| 14 #include "components/scheduler/renderer/web_frame_scheduler_impl.h" | |
| 15 #include "components/scheduler/renderer/web_view_scheduler_impl.h" | |
| 16 #include "testing/gmock/include/gmock/gmock.h" | |
| 17 #include "testing/gtest/include/gtest/gtest.h" | |
| 18 | |
| 19 using testing::ElementsAre; | |
| 20 | |
| 21 namespace scheduler { | |
| 22 | |
| 23 class ThrottlingHelperTest : public testing::Test { | |
| 24 public: | |
| 25 ThrottlingHelperTest() {} | |
| 26 ~ThrottlingHelperTest() override {} | |
| 27 | |
| 28 void SetUp() override { | |
| 29 clock_.reset(new base::SimpleTestTickClock()); | |
| 30 clock_->Advance(base::TimeDelta::FromMicroseconds(5000)); | |
| 31 mock_task_runner_ = | |
| 32 make_scoped_refptr(new cc::OrderedSimpleTaskRunner(clock_.get(), true)); | |
| 33 delegate_ = SchedulerTqmDelegateForTest::Create( | |
| 34 mock_task_runner_, make_scoped_ptr(new TestTimeSource(clock_.get()))); | |
| 35 scheduler_.reset(new RendererSchedulerImpl(delegate_)); | |
| 36 throttling_helper_ = scheduler_->throttling_helper(); | |
| 37 timer_queue_ = scheduler_->NewTimerTaskRunner("test_queue"); | |
| 38 } | |
| 39 | |
| 40 void TearDown() override { | |
| 41 scheduler_->Shutdown(); | |
| 42 scheduler_.reset(); | |
| 43 } | |
| 44 | |
| 45 protected: | |
| 46 scoped_ptr<base::SimpleTestTickClock> clock_; | |
| 47 scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner_; | |
| 48 scoped_refptr<SchedulerTqmDelegate> delegate_; | |
| 49 scoped_ptr<RendererSchedulerImpl> scheduler_; | |
| 50 scoped_refptr<TaskQueue> timer_queue_; | |
| 51 ThrottlingHelper* throttling_helper_; // NOT OWNED | |
| 52 | |
| 53 DISALLOW_COPY_AND_ASSIGN(ThrottlingHelperTest); | |
| 54 }; | |
| 55 | |
| 56 TEST_F(ThrottlingHelperTest, DelayToNextRunTimeInSeconds) { | |
| 57 EXPECT_EQ(base::TimeDelta::FromSecondsD(1.0), | |
| 58 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 59 base::TimeTicks() + base::TimeDelta::FromSecondsD(0.0))); | |
| 60 | |
| 61 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.9), | |
| 62 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 63 base::TimeTicks() + base::TimeDelta::FromSecondsD(0.1))); | |
| 64 | |
| 65 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.8), | |
| 66 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 67 base::TimeTicks() + base::TimeDelta::FromSecondsD(0.2))); | |
| 68 | |
| 69 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.5), | |
| 70 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 71 base::TimeTicks() + base::TimeDelta::FromSecondsD(0.5))); | |
| 72 | |
| 73 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.2), | |
| 74 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 75 base::TimeTicks() + base::TimeDelta::FromSecondsD(0.8))); | |
| 76 | |
| 77 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.1), | |
| 78 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 79 base::TimeTicks() + base::TimeDelta::FromSecondsD(0.9))); | |
| 80 | |
| 81 EXPECT_EQ(base::TimeDelta::FromSecondsD(1.0), | |
| 82 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 83 base::TimeTicks() + base::TimeDelta::FromSecondsD(1.0))); | |
| 84 | |
| 85 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.9), | |
| 86 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 87 base::TimeTicks() + base::TimeDelta::FromSecondsD(1.1))); | |
| 88 | |
| 89 EXPECT_EQ(base::TimeDelta::FromSecondsD(1.0), | |
| 90 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 91 base::TimeTicks() + base::TimeDelta::FromSecondsD(8.0))); | |
| 92 | |
| 93 EXPECT_EQ(base::TimeDelta::FromSecondsD(0.9), | |
| 94 ThrottlingHelper::DelayToNextRunTimeInSeconds( | |
| 95 base::TimeTicks() + base::TimeDelta::FromSecondsD(8.1))); | |
| 96 } | |
| 97 | |
| 98 namespace { | |
| 99 void TestTask(std::vector<base::TimeTicks>* run_times, | |
| 100 base::SimpleTestTickClock* clock) { | |
| 101 run_times->push_back(clock->NowTicks()); | |
| 102 } | |
| 103 } // namespace | |
| 104 | |
| 105 TEST_F(ThrottlingHelperTest, TimerAlignment) { | |
| 106 std::vector<base::TimeTicks> run_times; | |
| 107 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 108 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 109 base::TimeDelta::FromMilliseconds(200.0)); | |
| 110 | |
| 111 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 112 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 113 base::TimeDelta::FromMilliseconds(800.0)); | |
| 114 | |
| 115 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 116 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 117 base::TimeDelta::FromMilliseconds(1200.0)); | |
| 118 | |
| 119 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 120 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 121 base::TimeDelta::FromMilliseconds(8300.0)); | |
| 122 | |
| 123 throttling_helper_->Throttle(timer_queue_.get()); | |
| 124 | |
| 125 mock_task_runner_->RunUntilIdle(); | |
| 126 | |
| 127 // Times are aligned to a multipple of 1000 milliseconds. | |
| 128 EXPECT_THAT( | |
| 129 run_times, | |
| 130 ElementsAre( | |
| 131 base::TimeTicks() + base::TimeDelta::FromMilliseconds(1000.0), | |
| 132 base::TimeTicks() + base::TimeDelta::FromMilliseconds(1000.0), | |
| 133 base::TimeTicks() + base::TimeDelta::FromMilliseconds(2000.0), | |
| 134 base::TimeTicks() + base::TimeDelta::FromMilliseconds(9000.0))); | |
| 135 } | |
| 136 | |
| 137 TEST_F(ThrottlingHelperTest, TimerAlignment_Unthrottled) { | |
| 138 std::vector<base::TimeTicks> run_times; | |
| 139 base::TimeTicks start_time = clock_->NowTicks(); | |
| 140 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 141 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 142 base::TimeDelta::FromMilliseconds(200.0)); | |
| 143 | |
| 144 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 145 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 146 base::TimeDelta::FromMilliseconds(800.0)); | |
| 147 | |
| 148 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 149 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 150 base::TimeDelta::FromMilliseconds(1200.0)); | |
| 151 | |
| 152 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 153 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 154 base::TimeDelta::FromMilliseconds(8300.0)); | |
| 155 | |
| 156 throttling_helper_->Throttle(timer_queue_.get()); | |
| 157 throttling_helper_->Unthrottle(timer_queue_.get()); | |
| 158 | |
| 159 mock_task_runner_->RunUntilIdle(); | |
| 160 | |
| 161 // Times are not aligned. | |
| 162 EXPECT_THAT( | |
| 163 run_times, | |
| 164 ElementsAre(start_time + base::TimeDelta::FromMilliseconds(200.0), | |
| 165 start_time + base::TimeDelta::FromMilliseconds(800.0), | |
| 166 start_time + base::TimeDelta::FromMilliseconds(1200.0), | |
| 167 start_time + base::TimeDelta::FromMilliseconds(8300.0))); | |
| 168 } | |
| 169 | |
| 170 TEST_F(ThrottlingHelperTest, WakeUpForNonDelayedTask) { | |
| 171 std::vector<base::TimeTicks> run_times; | |
| 172 | |
| 173 // Nothing is posted on timer_queue_ so PumpThrottledTasks will not tick. | |
| 174 throttling_helper_->Throttle(timer_queue_.get()); | |
| 175 | |
| 176 // Posting a task should trigger the pump. | |
| 177 timer_queue_->PostTask(FROM_HERE, | |
| 178 base::Bind(&TestTask, &run_times, clock_.get())); | |
| 179 | |
| 180 mock_task_runner_->RunUntilIdle(); | |
| 181 EXPECT_THAT(run_times, | |
| 182 ElementsAre(base::TimeTicks() + | |
| 183 base::TimeDelta::FromMilliseconds(1000.0))); | |
| 184 } | |
| 185 | |
| 186 TEST_F(ThrottlingHelperTest, WakeUpForDelayedTask) { | |
| 187 std::vector<base::TimeTicks> run_times; | |
| 188 | |
| 189 // Nothing is posted on timer_queue_ so PumpThrottledTasks will not tick. | |
| 190 throttling_helper_->Throttle(timer_queue_.get()); | |
| 191 | |
| 192 // Posting a task should trigger the pump. | |
| 193 timer_queue_->PostDelayedTask(FROM_HERE, | |
| 194 base::Bind(&TestTask, &run_times, clock_.get()), | |
| 195 base::TimeDelta::FromMilliseconds(1200.0)); | |
| 196 | |
| 197 mock_task_runner_->RunUntilIdle(); | |
| 198 EXPECT_THAT(run_times, | |
| 199 ElementsAre(base::TimeTicks() + | |
| 200 base::TimeDelta::FromMilliseconds(2000.0))); | |
| 201 } | |
| 202 | |
| 203 } // namespace scheduler | |
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Chromium Code Reviews
Issue 1477353002:
Revert of Move throttling of background timers into the renderer scheduler (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master