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| 1 // Copyright 2014 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 "content/child/scheduler/scheduler_helper.h" | |
| 6 | |
| 7 #include "base/callback.h" | |
| 8 #include "cc/test/ordered_simple_task_runner.h" | |
| 9 #include "cc/test/test_now_source.h" | |
| 10 #include "content/child/scheduler/nestable_task_runner_for_test.h" | |
| 11 #include "content/child/scheduler/scheduler_message_loop_delegate.h" | |
| 12 #include "content/child/scheduler/task_queue_manager.h" | |
| 13 #include "content/test/test_time_source.h" | |
| 14 #include "testing/gmock/include/gmock/gmock.h" | |
| 15 #include "testing/gtest/include/gtest/gtest.h" | |
| 16 | |
| 17 using testing::_; | |
| 18 using testing::AnyNumber; | |
| 19 using testing::Invoke; | |
| 20 using testing::Return; | |
| 21 | |
| 22 namespace content { | |
| 23 | |
| 24 namespace { | |
| 25 void AppendToVectorTestTask(std::vector<std::string>* vector, | |
| 26 std::string value) { | |
| 27 vector->push_back(value); | |
| 28 } | |
| 29 | |
| 30 void AppendToVectorIdleTestTask(std::vector<std::string>* vector, | |
| 31 std::string value, | |
| 32 base::TimeTicks deadline) { | |
| 33 AppendToVectorTestTask(vector, value); | |
| 34 } | |
| 35 | |
| 36 void NullTask() { | |
| 37 } | |
| 38 | |
| 39 void AppendToVectorReentrantTask( | |
| 40 base::SingleThreadTaskRunner* task_runner, | |
| 41 std::vector<int>* vector, | |
| 42 int* reentrant_count, | |
| 43 int max_reentrant_count) { | |
| 44 vector->push_back((*reentrant_count)++); | |
| 45 if (*reentrant_count < max_reentrant_count) { | |
| 46 task_runner->PostTask( | |
| 47 FROM_HERE, base::Bind(AppendToVectorReentrantTask, | |
| 48 base::Unretained(task_runner), vector, | |
| 49 reentrant_count, max_reentrant_count)); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 void NullIdleTask(base::TimeTicks) { | |
| 54 } | |
| 55 | |
| 56 void IdleTestTask(int* run_count, | |
| 57 base::TimeTicks* deadline_out, | |
| 58 base::TimeTicks deadline) { | |
| 59 (*run_count)++; | |
| 60 *deadline_out = deadline; | |
| 61 } | |
| 62 | |
| 63 int max_idle_task_reposts = 2; | |
| 64 | |
| 65 void RepostingIdleTestTask( | |
| 66 SingleThreadIdleTaskRunner* idle_task_runner, | |
| 67 int* run_count, | |
| 68 base::TimeTicks deadline) { | |
| 69 if ((*run_count + 1) < max_idle_task_reposts) { | |
| 70 idle_task_runner->PostIdleTask( | |
| 71 FROM_HERE, | |
| 72 base::Bind(&RepostingIdleTestTask, | |
| 73 base::Unretained(idle_task_runner), run_count)); | |
| 74 } | |
| 75 (*run_count)++; | |
| 76 } | |
| 77 | |
| 78 void UpdateClockToDeadlineIdleTestTask( | |
| 79 scoped_refptr<cc::TestNowSource> clock, | |
| 80 base::SingleThreadTaskRunner* task_runner, | |
| 81 int* run_count, | |
| 82 base::TimeTicks deadline) { | |
| 83 clock->SetNow(deadline); | |
| 84 // Due to the way in which OrderedSimpleTestRunner orders tasks and the fact | |
| 85 // that we updated the time within a task, the delayed pending task to call | |
| 86 // EndIdlePeriod will not happen until after a TaskQueueManager DoWork, so | |
| 87 // post a normal task here to ensure it runs before the next idle task. | |
| 88 task_runner->PostTask(FROM_HERE, base::Bind(NullTask)); | |
| 89 (*run_count)++; | |
| 90 } | |
| 91 | |
| 92 void RepeatingTask(base::SingleThreadTaskRunner* task_runner, | |
| 93 int num_repeats, | |
| 94 base::TimeDelta delay) { | |
| 95 if (num_repeats > 1) { | |
| 96 task_runner->PostDelayedTask( | |
| 97 FROM_HERE, base::Bind(&RepeatingTask, base::Unretained(task_runner), | |
| 98 num_repeats - 1, delay), | |
| 99 delay); | |
| 100 } | |
| 101 } | |
| 102 | |
| 103 scoped_refptr<NestableSingleThreadTaskRunner> | |
| 104 CreateNestableSingleThreadTaskRunner( | |
| 105 base::MessageLoop* message_loop, | |
| 106 scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner) { | |
| 107 if (message_loop) | |
| 108 return SchedulerMessageLoopDelegate::Create(message_loop); | |
| 109 | |
| 110 return NestableTaskRunnerForTest::Create(mock_task_runner); | |
| 111 } | |
| 112 | |
| 113 }; // namespace | |
| 114 | |
| 115 class SchedulerHelperForTest : public SchedulerHelper, | |
| 116 public SchedulerHelper::SchedulerHelperDelegate { | |
| 117 public: | |
| 118 explicit SchedulerHelperForTest( | |
| 119 scoped_refptr<NestableSingleThreadTaskRunner> main_task_runner, | |
| 120 base::TimeDelta required_quiescence_duration_before_long_idle_period) | |
| 121 : SchedulerHelper(main_task_runner, | |
| 122 this, | |
| 123 "test.scheduler", | |
| 124 TRACE_DISABLED_BY_DEFAULT("test.scheduler"), | |
| 125 "TestSchedulerIdlePeriod", | |
| 126 TASK_QUEUE_COUNT, | |
| 127 required_quiescence_duration_before_long_idle_period) {} | |
| 128 | |
| 129 ~SchedulerHelperForTest() override {} | |
| 130 | |
| 131 // SchedulerHelperDelegate implementation: | |
| 132 MOCK_METHOD2(CanEnterLongIdlePeriod, | |
| 133 bool(base::TimeTicks now, | |
| 134 base::TimeDelta* next_long_idle_period_delay_out)); | |
| 135 | |
| 136 MOCK_METHOD0(IsNotQuiescent, void()); | |
| 137 }; | |
| 138 | |
| 139 class BaseSchedulerHelperTest : public testing::Test { | |
| 140 public: | |
| 141 BaseSchedulerHelperTest( | |
| 142 base::MessageLoop* message_loop, | |
| 143 base::TimeDelta required_quiescence_duration_before_long_idle_period) | |
| 144 : clock_(cc::TestNowSource::Create(5000)), | |
| 145 mock_task_runner_(message_loop | |
| 146 ? nullptr | |
| 147 : new cc::OrderedSimpleTaskRunner(clock_, false)), | |
| 148 message_loop_(message_loop), | |
| 149 nestable_task_runner_( | |
| 150 CreateNestableSingleThreadTaskRunner(message_loop, | |
| 151 mock_task_runner_)), | |
| 152 scheduler_helper_(new SchedulerHelperForTest( | |
| 153 nestable_task_runner_, | |
| 154 required_quiescence_duration_before_long_idle_period)), | |
| 155 default_task_runner_(scheduler_helper_->DefaultTaskRunner()), | |
| 156 idle_task_runner_(scheduler_helper_->IdleTaskRunner()) { | |
| 157 scheduler_helper_->SetTimeSourceForTesting( | |
| 158 make_scoped_ptr(new TestTimeSource(clock_))); | |
| 159 scheduler_helper_->GetTaskQueueManagerForTesting()->SetTimeSourceForTesting( | |
| 160 make_scoped_ptr(new TestTimeSource(clock_))); | |
| 161 } | |
| 162 | |
| 163 ~BaseSchedulerHelperTest() override {} | |
| 164 | |
| 165 void TearDown() override { | |
| 166 DCHECK(!mock_task_runner_.get() || !message_loop_.get()); | |
| 167 if (mock_task_runner_.get()) { | |
| 168 // Check that all tests stop posting tasks. | |
| 169 mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true); | |
| 170 while (mock_task_runner_->RunUntilIdle()) { | |
| 171 } | |
| 172 } else { | |
| 173 message_loop_->RunUntilIdle(); | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 void RunUntilIdle() { | |
| 178 // Only one of mock_task_runner_ or message_loop_ should be set. | |
| 179 DCHECK(!mock_task_runner_.get() || !message_loop_.get()); | |
| 180 if (mock_task_runner_.get()) | |
| 181 mock_task_runner_->RunUntilIdle(); | |
| 182 else | |
| 183 message_loop_->RunUntilIdle(); | |
| 184 } | |
| 185 | |
| 186 // Helper for posting several tasks of specific types. |task_descriptor| is a | |
| 187 // string with space delimited task identifiers. The first letter of each | |
| 188 // task identifier specifies the task type: | |
| 189 // - 'D': Default task | |
| 190 // - 'I': Idle task | |
| 191 void PostTestTasks(std::vector<std::string>* run_order, | |
| 192 const std::string& task_descriptor) { | |
| 193 std::istringstream stream(task_descriptor); | |
| 194 while (!stream.eof()) { | |
| 195 std::string task; | |
| 196 stream >> task; | |
| 197 switch (task[0]) { | |
| 198 case 'D': | |
| 199 default_task_runner_->PostTask( | |
| 200 FROM_HERE, base::Bind(&AppendToVectorTestTask, run_order, task)); | |
| 201 break; | |
| 202 case 'I': | |
| 203 idle_task_runner_->PostIdleTask( | |
| 204 FROM_HERE, | |
| 205 base::Bind(&AppendToVectorIdleTestTask, run_order, task)); | |
| 206 break; | |
| 207 default: | |
| 208 NOTREACHED(); | |
| 209 } | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 protected: | |
| 214 static base::TimeDelta maximum_idle_period_duration() { | |
| 215 return base::TimeDelta::FromMilliseconds( | |
| 216 SchedulerHelper::kMaximumIdlePeriodMillis); | |
| 217 } | |
| 218 | |
| 219 base::TimeTicks CurrentIdleTaskDeadlineForTesting() { | |
| 220 base::TimeTicks deadline; | |
| 221 scheduler_helper_->CurrentIdleTaskDeadlineCallback(&deadline); | |
| 222 return deadline; | |
| 223 } | |
| 224 | |
| 225 scoped_refptr<cc::TestNowSource> clock_; | |
| 226 // Only one of mock_task_runner_ or message_loop_ will be set. | |
| 227 scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner_; | |
| 228 scoped_ptr<base::MessageLoop> message_loop_; | |
| 229 | |
| 230 scoped_refptr<NestableSingleThreadTaskRunner> nestable_task_runner_; | |
| 231 scoped_ptr<SchedulerHelperForTest> scheduler_helper_; | |
| 232 scoped_refptr<base::SingleThreadTaskRunner> default_task_runner_; | |
| 233 scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_; | |
| 234 | |
| 235 DISALLOW_COPY_AND_ASSIGN(BaseSchedulerHelperTest); | |
| 236 }; | |
| 237 | |
| 238 class SchedulerHelperTest : public BaseSchedulerHelperTest { | |
| 239 public: | |
| 240 SchedulerHelperTest() : BaseSchedulerHelperTest(nullptr, base::TimeDelta()) {} | |
| 241 | |
| 242 ~SchedulerHelperTest() override {} | |
| 243 | |
| 244 TaskQueueManager* task_queue_manager() const { | |
| 245 return scheduler_helper_->task_queue_manager_.get(); | |
| 246 } | |
| 247 | |
| 248 private: | |
| 249 DISALLOW_COPY_AND_ASSIGN(SchedulerHelperTest); | |
| 250 }; | |
| 251 | |
| 252 TEST_F(SchedulerHelperTest, TestPostDefaultTask) { | |
| 253 std::vector<std::string> run_order; | |
| 254 PostTestTasks(&run_order, "D1 D2 D3 D4"); | |
| 255 | |
| 256 RunUntilIdle(); | |
| 257 EXPECT_THAT(run_order, | |
| 258 testing::ElementsAre(std::string("D1"), std::string("D2"), | |
| 259 std::string("D3"), std::string("D4"))); | |
| 260 } | |
| 261 | |
| 262 TEST_F(SchedulerHelperTest, TestRentrantTask) { | |
| 263 int count = 0; | |
| 264 std::vector<int> run_order; | |
| 265 default_task_runner_->PostTask( | |
| 266 FROM_HERE, base::Bind(AppendToVectorReentrantTask, default_task_runner_, | |
| 267 &run_order, &count, 5)); | |
| 268 RunUntilIdle(); | |
| 269 | |
| 270 EXPECT_THAT(run_order, testing::ElementsAre(0, 1, 2, 3, 4)); | |
| 271 } | |
| 272 | |
| 273 TEST_F(SchedulerHelperTest, TestPostIdleTask) { | |
| 274 int run_count = 0; | |
| 275 base::TimeTicks expected_deadline = | |
| 276 clock_->Now() + base::TimeDelta::FromMilliseconds(2300); | |
| 277 base::TimeTicks deadline_in_task; | |
| 278 | |
| 279 clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(100)); | |
| 280 idle_task_runner_->PostIdleTask( | |
| 281 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 282 | |
| 283 RunUntilIdle(); | |
| 284 EXPECT_EQ(0, run_count); | |
| 285 | |
| 286 scheduler_helper_->StartIdlePeriod( | |
| 287 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 288 clock_->Now(), | |
| 289 expected_deadline, | |
| 290 true); | |
| 291 RunUntilIdle(); | |
| 292 EXPECT_EQ(1, run_count); | |
| 293 EXPECT_EQ(expected_deadline, deadline_in_task); | |
| 294 } | |
| 295 | |
| 296 TEST_F(SchedulerHelperTest, TestPostIdleTask_EndIdlePeriod) { | |
| 297 int run_count = 0; | |
| 298 base::TimeTicks deadline_in_task; | |
| 299 | |
| 300 clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(100)); | |
| 301 idle_task_runner_->PostIdleTask( | |
| 302 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 303 | |
| 304 RunUntilIdle(); | |
| 305 EXPECT_EQ(0, run_count); | |
| 306 | |
| 307 scheduler_helper_->StartIdlePeriod( | |
| 308 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 309 clock_->Now(), | |
| 310 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 311 true); | |
| 312 scheduler_helper_->EndIdlePeriod(); | |
| 313 RunUntilIdle(); | |
| 314 EXPECT_EQ(0, run_count); | |
| 315 } | |
| 316 | |
| 317 TEST_F(SchedulerHelperTest, TestRepostingIdleTask) { | |
| 318 int run_count = 0; | |
| 319 | |
| 320 max_idle_task_reposts = 2; | |
| 321 idle_task_runner_->PostIdleTask( | |
| 322 FROM_HERE, | |
| 323 base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count)); | |
| 324 scheduler_helper_->StartIdlePeriod( | |
| 325 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 326 clock_->Now(), | |
| 327 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 328 true); | |
| 329 RunUntilIdle(); | |
| 330 EXPECT_EQ(1, run_count); | |
| 331 | |
| 332 // Reposted tasks shouldn't run until next idle period. | |
| 333 RunUntilIdle(); | |
| 334 EXPECT_EQ(1, run_count); | |
| 335 | |
| 336 scheduler_helper_->StartIdlePeriod( | |
| 337 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 338 clock_->Now(), | |
| 339 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 340 true); | |
| 341 RunUntilIdle(); | |
| 342 EXPECT_EQ(2, run_count); | |
| 343 } | |
| 344 | |
| 345 TEST_F(SchedulerHelperTest, TestIdleTaskExceedsDeadline) { | |
| 346 int run_count = 0; | |
| 347 | |
| 348 // Post two UpdateClockToDeadlineIdleTestTask tasks. | |
| 349 idle_task_runner_->PostIdleTask( | |
| 350 FROM_HERE, base::Bind(&UpdateClockToDeadlineIdleTestTask, clock_, | |
| 351 default_task_runner_, &run_count)); | |
| 352 idle_task_runner_->PostIdleTask( | |
| 353 FROM_HERE, base::Bind(&UpdateClockToDeadlineIdleTestTask, clock_, | |
| 354 default_task_runner_, &run_count)); | |
| 355 | |
| 356 scheduler_helper_->StartIdlePeriod( | |
| 357 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 358 clock_->Now(), | |
| 359 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 360 true); | |
| 361 RunUntilIdle(); | |
| 362 // Only the first idle task should execute since it's used up the deadline. | |
| 363 EXPECT_EQ(1, run_count); | |
| 364 | |
| 365 scheduler_helper_->EndIdlePeriod(); | |
| 366 scheduler_helper_->StartIdlePeriod( | |
| 367 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 368 clock_->Now(), | |
| 369 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 370 true); | |
| 371 RunUntilIdle(); | |
| 372 // Second task should be run on the next idle period. | |
| 373 EXPECT_EQ(2, run_count); | |
| 374 } | |
| 375 | |
| 376 TEST_F(SchedulerHelperTest, TestPostIdleTaskAfterWakeup) { | |
| 377 base::TimeTicks deadline_in_task; | |
| 378 int run_count = 0; | |
| 379 | |
| 380 idle_task_runner_->PostIdleTaskAfterWakeup( | |
| 381 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 382 | |
| 383 scheduler_helper_->StartIdlePeriod( | |
| 384 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 385 clock_->Now(), | |
| 386 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 387 true); | |
| 388 RunUntilIdle(); | |
| 389 // Shouldn't run yet as no other task woke up the scheduler. | |
| 390 EXPECT_EQ(0, run_count); | |
| 391 | |
| 392 idle_task_runner_->PostIdleTaskAfterWakeup( | |
| 393 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 394 | |
| 395 scheduler_helper_->StartIdlePeriod( | |
| 396 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 397 clock_->Now(), | |
| 398 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 399 true); | |
| 400 RunUntilIdle(); | |
| 401 // Another after wakeup idle task shouldn't wake the scheduler. | |
| 402 EXPECT_EQ(0, run_count); | |
| 403 | |
| 404 default_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask)); | |
| 405 | |
| 406 RunUntilIdle(); | |
| 407 // Must start a new idle period before idle task runs. | |
| 408 scheduler_helper_->StartIdlePeriod( | |
| 409 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 410 clock_->Now(), | |
| 411 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 412 true); | |
| 413 RunUntilIdle(); | |
| 414 // Execution of default task queue task should trigger execution of idle task. | |
| 415 EXPECT_EQ(2, run_count); | |
| 416 } | |
| 417 | |
| 418 TEST_F(SchedulerHelperTest, TestPostIdleTaskAfterWakeupWhileAwake) { | |
| 419 base::TimeTicks deadline_in_task; | |
| 420 int run_count = 0; | |
| 421 | |
| 422 idle_task_runner_->PostIdleTaskAfterWakeup( | |
| 423 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 424 default_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask)); | |
| 425 | |
| 426 RunUntilIdle(); | |
| 427 // Must start a new idle period before idle task runs. | |
| 428 scheduler_helper_->StartIdlePeriod( | |
| 429 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 430 clock_->Now(), | |
| 431 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 432 true); | |
| 433 RunUntilIdle(); | |
| 434 // Should run as the scheduler was already awakened by the normal task. | |
| 435 EXPECT_EQ(1, run_count); | |
| 436 } | |
| 437 | |
| 438 TEST_F(SchedulerHelperTest, TestPostIdleTaskWakesAfterWakeupIdleTask) { | |
| 439 base::TimeTicks deadline_in_task; | |
| 440 int run_count = 0; | |
| 441 | |
| 442 idle_task_runner_->PostIdleTaskAfterWakeup( | |
| 443 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 444 idle_task_runner_->PostIdleTask( | |
| 445 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 446 | |
| 447 scheduler_helper_->StartIdlePeriod( | |
| 448 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 449 clock_->Now(), | |
| 450 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 451 true); | |
| 452 RunUntilIdle(); | |
| 453 // Must start a new idle period before after-wakeup idle task runs. | |
| 454 scheduler_helper_->StartIdlePeriod( | |
| 455 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 456 clock_->Now(), | |
| 457 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 458 true); | |
| 459 RunUntilIdle(); | |
| 460 // Normal idle task should wake up after-wakeup idle task. | |
| 461 EXPECT_EQ(2, run_count); | |
| 462 } | |
| 463 | |
| 464 TEST_F(SchedulerHelperTest, TestDelayedEndIdlePeriod) { | |
| 465 mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true); | |
| 466 | |
| 467 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 468 .Times(2) | |
| 469 .WillRepeatedly(Return(true)); | |
| 470 | |
| 471 // We need an idle task posted or EnableLongIdlePeriod will use the | |
| 472 // control_task_after_wakeup_runner_ instead of the control_task_runner_. | |
| 473 idle_task_runner_->PostIdleTask(FROM_HERE, base::Bind(&NullIdleTask)); | |
| 474 scheduler_helper_->EnableLongIdlePeriod(); | |
| 475 | |
| 476 // Check there is a pending delayed task. | |
| 477 EXPECT_GT(task_queue_manager()->NextPendingDelayedTaskRunTime(), | |
| 478 base::TimeTicks()); | |
| 479 | |
| 480 RunUntilIdle(); | |
| 481 | |
| 482 // If the delayed task ran, it will an EnableLongIdlePeriod on the control | |
| 483 // task after wake up queue. | |
| 484 EXPECT_FALSE(task_queue_manager()->IsQueueEmpty( | |
| 485 SchedulerHelper::CONTROL_TASK_AFTER_WAKEUP_QUEUE)); | |
| 486 } | |
| 487 | |
| 488 TEST_F(SchedulerHelperTest, TestDelayedEndIdlePeriodCanceled) { | |
| 489 mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true); | |
| 490 | |
| 491 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 492 .Times(1) | |
| 493 .WillRepeatedly(Return(true)); | |
| 494 | |
| 495 // We need an idle task posted or EnableLongIdlePeriod will use the | |
| 496 // control_task_after_wakeup_runner_ instead of the control_task_runner_. | |
| 497 idle_task_runner_->PostIdleTask(FROM_HERE, base::Bind(&NullIdleTask)); | |
| 498 scheduler_helper_->EnableLongIdlePeriod(); | |
| 499 | |
| 500 // Check there is a pending delayed task. | |
| 501 EXPECT_GT(task_queue_manager()->NextPendingDelayedTaskRunTime(), | |
| 502 base::TimeTicks()); | |
| 503 | |
| 504 scheduler_helper_->EndIdlePeriod(); | |
| 505 RunUntilIdle(); | |
| 506 | |
| 507 // If the delayed task didn't run, there will be nothing on the control task | |
| 508 // after wake up queue. | |
| 509 EXPECT_TRUE(scheduler_helper_->IsQueueEmpty( | |
| 510 SchedulerHelper::CONTROL_TASK_AFTER_WAKEUP_QUEUE)); | |
| 511 } | |
| 512 | |
| 513 class SchedulerHelperWithMessageLoopTest : public BaseSchedulerHelperTest { | |
| 514 public: | |
| 515 SchedulerHelperWithMessageLoopTest() | |
| 516 : BaseSchedulerHelperTest(new base::MessageLoop(), base::TimeDelta()) {} | |
| 517 ~SchedulerHelperWithMessageLoopTest() override {} | |
| 518 | |
| 519 void PostFromNestedRunloop(std::vector< | |
| 520 std::pair<SingleThreadIdleTaskRunner::IdleTask, bool>>* tasks) { | |
| 521 base::MessageLoop::ScopedNestableTaskAllower allow(message_loop_.get()); | |
| 522 for (std::pair<SingleThreadIdleTaskRunner::IdleTask, bool>& pair : *tasks) { | |
| 523 if (pair.second) { | |
| 524 idle_task_runner_->PostIdleTask(FROM_HERE, pair.first); | |
| 525 } else { | |
| 526 idle_task_runner_->PostNonNestableIdleTask(FROM_HERE, pair.first); | |
| 527 } | |
| 528 } | |
| 529 scheduler_helper_->StartIdlePeriod( | |
| 530 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 531 clock_->Now(), | |
| 532 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 533 true); | |
| 534 message_loop_->RunUntilIdle(); | |
| 535 } | |
| 536 | |
| 537 private: | |
| 538 DISALLOW_COPY_AND_ASSIGN(SchedulerHelperWithMessageLoopTest); | |
| 539 }; | |
| 540 | |
| 541 TEST_F(SchedulerHelperWithMessageLoopTest, | |
| 542 NonNestableIdleTaskDoesntExecuteInNestedLoop) { | |
| 543 std::vector<std::string> order; | |
| 544 idle_task_runner_->PostIdleTask( | |
| 545 FROM_HERE, | |
| 546 base::Bind(&AppendToVectorIdleTestTask, &order, std::string("1"))); | |
| 547 idle_task_runner_->PostIdleTask( | |
| 548 FROM_HERE, | |
| 549 base::Bind(&AppendToVectorIdleTestTask, &order, std::string("2"))); | |
| 550 | |
| 551 std::vector<std::pair<SingleThreadIdleTaskRunner::IdleTask, bool>> | |
| 552 tasks_to_post_from_nested_loop; | |
| 553 tasks_to_post_from_nested_loop.push_back(std::make_pair( | |
| 554 base::Bind(&AppendToVectorIdleTestTask, &order, std::string("3")), | |
| 555 false)); | |
| 556 tasks_to_post_from_nested_loop.push_back(std::make_pair( | |
| 557 base::Bind(&AppendToVectorIdleTestTask, &order, std::string("4")), true)); | |
| 558 tasks_to_post_from_nested_loop.push_back(std::make_pair( | |
| 559 base::Bind(&AppendToVectorIdleTestTask, &order, std::string("5")), true)); | |
| 560 | |
| 561 default_task_runner_->PostTask( | |
| 562 FROM_HERE, | |
| 563 base::Bind(&SchedulerHelperWithMessageLoopTest::PostFromNestedRunloop, | |
| 564 base::Unretained(this), | |
| 565 base::Unretained(&tasks_to_post_from_nested_loop))); | |
| 566 | |
| 567 scheduler_helper_->StartIdlePeriod( | |
| 568 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 569 clock_->Now(), | |
| 570 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 571 true); | |
| 572 RunUntilIdle(); | |
| 573 // Note we expect task 3 to run last because it's non-nestable. | |
| 574 EXPECT_THAT(order, testing::ElementsAre(std::string("1"), std::string("2"), | |
| 575 std::string("4"), std::string("5"), | |
| 576 std::string("3"))); | |
| 577 } | |
| 578 | |
| 579 TEST_F(SchedulerHelperTest, TestLongIdlePeriod) { | |
| 580 base::TimeTicks expected_deadline = | |
| 581 clock_->Now() + maximum_idle_period_duration(); | |
| 582 base::TimeTicks deadline_in_task; | |
| 583 int run_count = 0; | |
| 584 | |
| 585 idle_task_runner_->PostIdleTask( | |
| 586 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 587 | |
| 588 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 589 .Times(2) | |
| 590 .WillRepeatedly(Return(true)); | |
| 591 | |
| 592 RunUntilIdle(); | |
| 593 EXPECT_EQ(0, run_count); // Shouldn't run yet as no idle period. | |
| 594 | |
| 595 scheduler_helper_->EnableLongIdlePeriod(); | |
| 596 RunUntilIdle(); | |
| 597 EXPECT_EQ(1, run_count); // Should have run in a long idle time. | |
| 598 EXPECT_EQ(expected_deadline, deadline_in_task); | |
| 599 } | |
| 600 | |
| 601 TEST_F(SchedulerHelperTest, TestLongIdlePeriodWithPendingDelayedTask) { | |
| 602 base::TimeDelta pending_task_delay = base::TimeDelta::FromMilliseconds(30); | |
| 603 base::TimeTicks expected_deadline = clock_->Now() + pending_task_delay; | |
| 604 base::TimeTicks deadline_in_task; | |
| 605 int run_count = 0; | |
| 606 | |
| 607 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 608 .Times(2) | |
| 609 .WillRepeatedly(Return(true)); | |
| 610 | |
| 611 idle_task_runner_->PostIdleTask( | |
| 612 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 613 default_task_runner_->PostDelayedTask(FROM_HERE, base::Bind(&NullTask), | |
| 614 pending_task_delay); | |
| 615 | |
| 616 scheduler_helper_->EnableLongIdlePeriod(); | |
| 617 RunUntilIdle(); | |
| 618 EXPECT_EQ(1, run_count); // Should have run in a long idle time. | |
| 619 EXPECT_EQ(expected_deadline, deadline_in_task); | |
| 620 } | |
| 621 | |
| 622 TEST_F(SchedulerHelperTest, TestLongIdlePeriodWithLatePendingDelayedTask) { | |
| 623 base::TimeDelta pending_task_delay = base::TimeDelta::FromMilliseconds(10); | |
| 624 base::TimeTicks deadline_in_task; | |
| 625 int run_count = 0; | |
| 626 | |
| 627 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 628 .Times(3) | |
| 629 .WillRepeatedly(Return(true)); | |
| 630 | |
| 631 default_task_runner_->PostDelayedTask(FROM_HERE, base::Bind(&NullTask), | |
| 632 pending_task_delay); | |
| 633 | |
| 634 // Advance clock until after delayed task was meant to be run. | |
| 635 clock_->AdvanceNow(base::TimeDelta::FromMilliseconds(20)); | |
| 636 | |
| 637 // Post an idle task and then EnableLongIdlePeriod. Since there is a late | |
| 638 // pending delayed task this shouldn't actually start an idle period. | |
| 639 idle_task_runner_->PostIdleTask( | |
| 640 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 641 scheduler_helper_->EnableLongIdlePeriod(); | |
| 642 RunUntilIdle(); | |
| 643 EXPECT_EQ(0, run_count); | |
| 644 | |
| 645 // After the delayed task has been run we should trigger an idle period. | |
| 646 clock_->AdvanceNow(maximum_idle_period_duration()); | |
| 647 RunUntilIdle(); | |
| 648 EXPECT_EQ(1, run_count); | |
| 649 } | |
| 650 | |
| 651 TEST_F(SchedulerHelperTest, TestLongIdlePeriodRepeating) { | |
| 652 int run_count = 0; | |
| 653 | |
| 654 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 655 .Times(2) | |
| 656 .WillRepeatedly(Return(true)); | |
| 657 | |
| 658 max_idle_task_reposts = 3; | |
| 659 idle_task_runner_->PostIdleTask( | |
| 660 FROM_HERE, | |
| 661 base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count)); | |
| 662 | |
| 663 scheduler_helper_->EnableLongIdlePeriod(); | |
| 664 RunUntilIdle(); | |
| 665 EXPECT_EQ(1, run_count); // Should only run once per idle period. | |
| 666 | |
| 667 // Advance time to start of next long idle period and check task reposted task | |
| 668 // gets run. | |
| 669 clock_->AdvanceNow(maximum_idle_period_duration()); | |
| 670 RunUntilIdle(); | |
| 671 EXPECT_EQ(2, run_count); | |
| 672 | |
| 673 // Advance time to start of next long idle period then end the idle period and | |
| 674 // check the task doesn't get run. | |
| 675 clock_->AdvanceNow(maximum_idle_period_duration()); | |
| 676 scheduler_helper_->EndIdlePeriod(); | |
| 677 RunUntilIdle(); | |
| 678 EXPECT_EQ(2, run_count); | |
| 679 } | |
| 680 | |
| 681 TEST_F(SchedulerHelperTest, TestLongIdlePeriodDoesNotWakeScheduler) { | |
| 682 base::TimeTicks deadline_in_task; | |
| 683 int run_count = 0; | |
| 684 | |
| 685 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 686 .Times(3) | |
| 687 .WillRepeatedly(Return(true)); | |
| 688 | |
| 689 // Start a long idle period and get the time it should end. | |
| 690 scheduler_helper_->EnableLongIdlePeriod(); | |
| 691 // The scheduler should not run the initiate_next_long_idle_period task if | |
| 692 // there are no idle tasks and no other task woke up the scheduler, thus | |
| 693 // the idle period deadline shouldn't update at the end of the current long | |
| 694 // idle period. | |
| 695 base::TimeTicks idle_period_deadline = CurrentIdleTaskDeadlineForTesting(); | |
| 696 clock_->AdvanceNow(maximum_idle_period_duration()); | |
| 697 RunUntilIdle(); | |
| 698 | |
| 699 base::TimeTicks new_idle_period_deadline = | |
| 700 CurrentIdleTaskDeadlineForTesting(); | |
| 701 EXPECT_EQ(idle_period_deadline, new_idle_period_deadline); | |
| 702 | |
| 703 // Posting a after-wakeup idle task also shouldn't wake the scheduler or | |
| 704 // initiate the next long idle period. | |
| 705 idle_task_runner_->PostIdleTaskAfterWakeup( | |
| 706 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 707 RunUntilIdle(); | |
| 708 new_idle_period_deadline = CurrentIdleTaskDeadlineForTesting(); | |
| 709 EXPECT_EQ(idle_period_deadline, new_idle_period_deadline); | |
| 710 EXPECT_EQ(0, run_count); | |
| 711 | |
| 712 // Running a normal task should initiate a new long idle period though. | |
| 713 default_task_runner_->PostTask(FROM_HERE, base::Bind(&NullTask)); | |
| 714 RunUntilIdle(); | |
| 715 new_idle_period_deadline = CurrentIdleTaskDeadlineForTesting(); | |
| 716 EXPECT_EQ(idle_period_deadline + maximum_idle_period_duration(), | |
| 717 new_idle_period_deadline); | |
| 718 | |
| 719 EXPECT_EQ(1, run_count); | |
| 720 } | |
| 721 | |
| 722 TEST_F(SchedulerHelperTest, TestLongIdlePeriodWhenNotCanEnterLongIdlePeriod) { | |
| 723 base::TimeDelta delay = base::TimeDelta::FromMilliseconds(1000); | |
| 724 base::TimeDelta halfDelay = base::TimeDelta::FromMilliseconds(500); | |
| 725 base::TimeTicks delayOver = clock_->Now() + delay; | |
| 726 base::TimeTicks deadline_in_task; | |
| 727 int run_count = 0; | |
| 728 | |
| 729 ON_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 730 .WillByDefault(Invoke([delay, delayOver]( | |
| 731 base::TimeTicks now, | |
| 732 base::TimeDelta* next_long_idle_period_delay_out) { | |
| 733 if (now >= delayOver) | |
| 734 return true; | |
| 735 *next_long_idle_period_delay_out = delay; | |
| 736 return false; | |
| 737 })); | |
| 738 | |
| 739 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)).Times(3); | |
| 740 | |
| 741 idle_task_runner_->PostIdleTask( | |
| 742 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 743 | |
| 744 // Make sure Idle tasks don't run until the delay has occured. | |
| 745 scheduler_helper_->EnableLongIdlePeriod(); | |
| 746 RunUntilIdle(); | |
| 747 EXPECT_EQ(0, run_count); | |
| 748 | |
| 749 clock_->AdvanceNow(halfDelay); | |
| 750 RunUntilIdle(); | |
| 751 EXPECT_EQ(0, run_count); | |
| 752 | |
| 753 // Delay is finished, idle task should run. | |
| 754 clock_->AdvanceNow(halfDelay); | |
| 755 RunUntilIdle(); | |
| 756 EXPECT_EQ(1, run_count); | |
| 757 } | |
| 758 | |
| 759 void TestCanExceedIdleDeadlineIfRequiredTask(SchedulerHelperForTest* scheduler, | |
| 760 bool* can_exceed_idle_deadline_out, | |
| 761 int* run_count, | |
| 762 base::TimeTicks deadline) { | |
| 763 *can_exceed_idle_deadline_out = scheduler->CanExceedIdleDeadlineIfRequired(); | |
| 764 (*run_count)++; | |
| 765 } | |
| 766 | |
| 767 TEST_F(SchedulerHelperTest, CanExceedIdleDeadlineIfRequired) { | |
| 768 int run_count = 0; | |
| 769 bool can_exceed_idle_deadline = false; | |
| 770 | |
| 771 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 772 .Times(3) | |
| 773 .WillRepeatedly(Return(true)); | |
| 774 | |
| 775 // Should return false if not in an idle period. | |
| 776 EXPECT_FALSE(scheduler_helper_->CanExceedIdleDeadlineIfRequired()); | |
| 777 | |
| 778 // Should return false for short idle periods. | |
| 779 idle_task_runner_->PostIdleTask( | |
| 780 FROM_HERE, base::Bind(&TestCanExceedIdleDeadlineIfRequiredTask, | |
| 781 scheduler_helper_.get(), &can_exceed_idle_deadline, | |
| 782 &run_count)); | |
| 783 scheduler_helper_->StartIdlePeriod( | |
| 784 SchedulerHelper::IdlePeriodState::IN_SHORT_IDLE_PERIOD, | |
| 785 clock_->Now(), | |
| 786 clock_->Now() + base::TimeDelta::FromMilliseconds(10), | |
| 787 true); | |
| 788 RunUntilIdle(); | |
| 789 EXPECT_EQ(1, run_count); | |
| 790 EXPECT_FALSE(can_exceed_idle_deadline); | |
| 791 | |
| 792 // Should return false for a long idle period which is shortened due to a | |
| 793 // pending delayed task. | |
| 794 default_task_runner_->PostDelayedTask(FROM_HERE, base::Bind(&NullTask), | |
| 795 base::TimeDelta::FromMilliseconds(10)); | |
| 796 idle_task_runner_->PostIdleTask( | |
| 797 FROM_HERE, base::Bind(&TestCanExceedIdleDeadlineIfRequiredTask, | |
| 798 scheduler_helper_.get(), &can_exceed_idle_deadline, | |
| 799 &run_count)); | |
| 800 scheduler_helper_->EnableLongIdlePeriod(); | |
| 801 RunUntilIdle(); | |
| 802 EXPECT_EQ(2, run_count); | |
| 803 EXPECT_FALSE(can_exceed_idle_deadline); | |
| 804 | |
| 805 // Next long idle period will be for the maximum time, so | |
| 806 // CanExceedIdleDeadlineIfRequired should return true. | |
| 807 clock_->AdvanceNow(maximum_idle_period_duration()); | |
| 808 idle_task_runner_->PostIdleTask( | |
| 809 FROM_HERE, base::Bind(&TestCanExceedIdleDeadlineIfRequiredTask, | |
| 810 scheduler_helper_.get(), &can_exceed_idle_deadline, | |
| 811 &run_count)); | |
| 812 RunUntilIdle(); | |
| 813 EXPECT_EQ(3, run_count); | |
| 814 EXPECT_TRUE(can_exceed_idle_deadline); | |
| 815 } | |
| 816 | |
| 817 TEST_F(SchedulerHelperTest, IsShutdown) { | |
| 818 EXPECT_FALSE(scheduler_helper_->IsShutdown()); | |
| 819 | |
| 820 scheduler_helper_->Shutdown(); | |
| 821 EXPECT_TRUE(scheduler_helper_->IsShutdown()); | |
| 822 } | |
| 823 | |
| 824 class SchedulerHelperWithQuiescencePeriodTest : public BaseSchedulerHelperTest { | |
| 825 public: | |
| 826 enum { | |
| 827 kQuiescenceDelayMs = 100, | |
| 828 kLongIdlePeriodMs = 50, | |
| 829 }; | |
| 830 | |
| 831 SchedulerHelperWithQuiescencePeriodTest() | |
| 832 : BaseSchedulerHelperTest( | |
| 833 nullptr, | |
| 834 base::TimeDelta::FromMilliseconds(kQuiescenceDelayMs)) {} | |
| 835 | |
| 836 ~SchedulerHelperWithQuiescencePeriodTest() override {} | |
| 837 | |
| 838 void MakeNonQuiescent() { | |
| 839 // Run an arbitrary task so we're deemed to be not quiescent. | |
| 840 default_task_runner_->PostTask(FROM_HERE, base::Bind(NullTask)); | |
| 841 RunUntilIdle(); | |
| 842 } | |
| 843 | |
| 844 private: | |
| 845 DISALLOW_COPY_AND_ASSIGN(SchedulerHelperWithQuiescencePeriodTest); | |
| 846 }; | |
| 847 | |
| 848 TEST_F(SchedulerHelperWithQuiescencePeriodTest, | |
| 849 LongIdlePeriodStartsImmediatelyIfQuiescent) { | |
| 850 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 851 .Times(2) | |
| 852 .WillRepeatedly(Return(true)); | |
| 853 | |
| 854 int run_count = 0; | |
| 855 max_idle_task_reposts = 1; | |
| 856 idle_task_runner_->PostIdleTask( | |
| 857 FROM_HERE, | |
| 858 base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count)); | |
| 859 | |
| 860 scheduler_helper_->EnableLongIdlePeriod(); | |
| 861 RunUntilIdle(); | |
| 862 | |
| 863 EXPECT_EQ(1, run_count); | |
| 864 } | |
| 865 | |
| 866 TEST_F(SchedulerHelperWithQuiescencePeriodTest, | |
| 867 LongIdlePeriodDoesNotStartsImmediatelyIfBusy) { | |
| 868 MakeNonQuiescent(); | |
| 869 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)).Times(0); | |
| 870 | |
| 871 int run_count = 0; | |
| 872 max_idle_task_reposts = 1; | |
| 873 idle_task_runner_->PostIdleTask( | |
| 874 FROM_HERE, | |
| 875 base::Bind(&RepostingIdleTestTask, idle_task_runner_, &run_count)); | |
| 876 | |
| 877 scheduler_helper_->EnableLongIdlePeriod(); | |
| 878 RunUntilIdle(); | |
| 879 | |
| 880 EXPECT_EQ(0, run_count); | |
| 881 | |
| 882 scheduler_helper_->Shutdown(); | |
| 883 } | |
| 884 | |
| 885 TEST_F(SchedulerHelperWithQuiescencePeriodTest, | |
| 886 LongIdlePeriodStartsAfterQuiescence) { | |
| 887 MakeNonQuiescent(); | |
| 888 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 889 .Times(AnyNumber()) | |
| 890 .WillRepeatedly(Return(true)); | |
| 891 mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true); | |
| 892 | |
| 893 // Run a repeating task so we're deemed to be busy for the next 400ms. | |
| 894 default_task_runner_->PostTask( | |
| 895 FROM_HERE, | |
| 896 base::Bind(&RepeatingTask, base::Unretained(default_task_runner_.get()), | |
| 897 10, base::TimeDelta::FromMilliseconds(40))); | |
| 898 | |
| 899 int run_count = 0; | |
| 900 // In this scenario EnableLongIdlePeriod deems us not to be quiescent 5x in | |
| 901 // a row. | |
| 902 base::TimeTicks expected_deadline = | |
| 903 clock_->Now() + base::TimeDelta::FromMilliseconds(5 * kQuiescenceDelayMs + | |
| 904 kLongIdlePeriodMs); | |
| 905 base::TimeTicks deadline_in_task; | |
| 906 idle_task_runner_->PostIdleTask( | |
| 907 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 908 | |
| 909 scheduler_helper_->EnableLongIdlePeriod(); | |
| 910 RunUntilIdle(); | |
| 911 EXPECT_EQ(1, run_count); | |
| 912 EXPECT_EQ(expected_deadline, deadline_in_task); | |
| 913 } | |
| 914 | |
| 915 TEST_F(SchedulerHelperWithQuiescencePeriodTest, | |
| 916 QuescienceCheckedForAfterLongIdlePeriodEnds) { | |
| 917 EXPECT_CALL(*scheduler_helper_, CanEnterLongIdlePeriod(_, _)) | |
| 918 .Times(AnyNumber()) | |
| 919 .WillRepeatedly(Return(true)); | |
| 920 mock_task_runner_->SetAutoAdvanceNowToPendingTasks(true); | |
| 921 | |
| 922 idle_task_runner_->PostIdleTask(FROM_HERE, base::Bind(&NullIdleTask)); | |
| 923 scheduler_helper_->EnableLongIdlePeriod(); | |
| 924 RunUntilIdle(); | |
| 925 | |
| 926 int run_count = 0; | |
| 927 base::TimeTicks deadline_in_task; | |
| 928 // Post an idle task, it won't run initially because the | |
| 929 // EnableLongIdlePeriod task was posted on an after wakeup runner. | |
| 930 idle_task_runner_->PostIdleTask( | |
| 931 FROM_HERE, base::Bind(&IdleTestTask, &run_count, &deadline_in_task)); | |
| 932 RunUntilIdle(); | |
| 933 EXPECT_EQ(0, run_count); | |
| 934 | |
| 935 // Post a normal task to wake the system up. The idle task won't run | |
| 936 // immediately because the system isn't judged to be quiescent until the | |
| 937 // second time EnableLongIdlePeriod is run. | |
| 938 base::TimeTicks expected_deadline = | |
| 939 clock_->Now() + | |
| 940 base::TimeDelta::FromMilliseconds(kQuiescenceDelayMs + kLongIdlePeriodMs); | |
| 941 default_task_runner_->PostTask(FROM_HERE, base::Bind(NullTask)); | |
| 942 RunUntilIdle(); | |
| 943 | |
| 944 EXPECT_EQ(1, run_count); | |
| 945 EXPECT_EQ(expected_deadline, deadline_in_task); | |
| 946 } | |
| 947 | |
| 948 } // namespace content | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1058873010:
Move blink scheduler implementation into a component (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master