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| 1 // Copyright 2016 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/promises/single_thread_promise_executor.h" |
| 6 |
| 7 #include "base/test/simple_test_tick_clock.h" |
| 8 #include "cc/test/ordered_simple_task_runner.h" |
| 9 #include "components/scheduler/base/task_queue_manager.h" |
| 10 #include "components/scheduler/base/test_time_source.h" |
| 11 #include "components/scheduler/child/scheduler_tqm_delegate_for_test.h" |
| 12 #include "testing/gmock/include/gmock/gmock.h" |
| 13 #include "testing/gtest/include/gtest/gtest.h" |
| 14 |
| 15 using testing::ElementsAre; |
| 16 using testing::WhenSorted; |
| 17 |
| 18 namespace promise { |
| 19 |
| 20 class SingleThreadPromiseExecutorTest : public testing::Test { |
| 21 public: |
| 22 SingleThreadPromiseExecutorTest() {} |
| 23 ~SingleThreadPromiseExecutorTest() override {} |
| 24 |
| 25 void SetUp() override { |
| 26 clock_.reset(new base::SimpleTestTickClock()); |
| 27 clock_->Advance(base::TimeDelta::FromMicroseconds(5000)); |
| 28 |
| 29 test_time_source_.reset(new scheduler::TestTimeSource(clock_.get())); |
| 30 mock_task_runner_ = make_scoped_refptr( |
| 31 new cc::OrderedSimpleTaskRunner(clock_.get(), false)); |
| 32 main_task_runner_ = scheduler::SchedulerTqmDelegateForTest::Create( |
| 33 mock_task_runner_, |
| 34 make_scoped_ptr(new scheduler::TestTimeSource(clock_.get()))); |
| 35 manager_ = make_scoped_ptr(new scheduler::TaskQueueManager( |
| 36 main_task_runner_, "test.scheduler", "test.scheduler", |
| 37 "test.scheduler.debug")); |
| 38 task_runner_ = |
| 39 manager_->NewTaskQueue(scheduler::TaskQueue::Spec("task_runner")); |
| 40 promise_executor_.reset( |
| 41 new internal::SingleThreadPromiseExecutor(task_runner_)); |
| 42 } |
| 43 |
| 44 scoped_ptr<base::SimpleTestTickClock> clock_; |
| 45 scoped_ptr<scheduler::TestTimeSource> test_time_source_; |
| 46 scoped_refptr<cc::OrderedSimpleTaskRunner> mock_task_runner_; |
| 47 scoped_refptr<scheduler::SchedulerTqmDelegate> main_task_runner_; |
| 48 scoped_ptr<scheduler::TaskQueueManager> manager_; |
| 49 scoped_refptr<scheduler::TaskQueue> task_runner_; |
| 50 scoped_ptr<internal::SingleThreadPromiseExecutor> promise_executor_; |
| 51 }; |
| 52 |
| 53 namespace { |
| 54 bool ReturnTrue() { |
| 55 return true; |
| 56 } |
| 57 |
| 58 int ReturnOne() { |
| 59 return 1; |
| 60 } |
| 61 |
| 62 int ReturnTwo() { |
| 63 return 2; |
| 64 } |
| 65 |
| 66 int ReturnTen() { |
| 67 return 10; |
| 68 } |
| 69 |
| 70 int Add(int i, int j) { |
| 71 return i + j; |
| 72 } |
| 73 |
| 74 int CondTimesThree(int i, bool do_smth) { |
| 75 if (do_smth) |
| 76 return i * 3; |
| 77 return i; |
| 78 } |
| 79 |
| 80 int ReturnZero() { |
| 81 return 0; |
| 82 } |
| 83 |
| 84 void RecordParam(int* out, int in) { |
| 85 *out = in; |
| 86 } |
| 87 |
| 88 Promise<int> Choose(Promise<int> p1, Promise<int> p2, int i) { |
| 89 return i ? p1 : p2; |
| 90 } |
| 91 |
| 92 void RecordOrder(int value, std::vector<int>* out_result) { |
| 93 out_result->push_back(value); |
| 94 } |
| 95 |
| 96 } // namespace |
| 97 |
| 98 TEST_F(SingleThreadPromiseExecutorTest, NonVoidPromise) { |
| 99 Promise<int> promise(promise::Create(base::Bind(&ReturnOne))); |
| 100 |
| 101 promise_executor_->StartResolve(promise); |
| 102 mock_task_runner_->RunUntilIdle(); |
| 103 EXPECT_EQ(1, promise.GetResolved()); |
| 104 } |
| 105 |
| 106 TEST_F(SingleThreadPromiseExecutorTest, AssignPromise) { |
| 107 Promise<int> promise = promise::Create(base::Bind(&ReturnOne)); |
| 108 |
| 109 promise_executor_->StartResolve(promise); |
| 110 mock_task_runner_->RunUntilIdle(); |
| 111 EXPECT_EQ(1, promise.GetResolved()); |
| 112 } |
| 113 |
| 114 TEST_F(SingleThreadPromiseExecutorTest, Then) { |
| 115 Promise<int> promise( |
| 116 promise::Create(base::Bind(&ReturnOne)).Then(base::Bind(&Add, 1))); |
| 117 |
| 118 promise_executor_->StartResolve(promise); |
| 119 mock_task_runner_->RunUntilIdle(); |
| 120 EXPECT_EQ(2, promise.GetResolved()); |
| 121 } |
| 122 |
| 123 TEST_F(SingleThreadPromiseExecutorTest, AssignThen) { |
| 124 Promise<int> promise = |
| 125 promise::Create(base::Bind(&ReturnOne)).Then(base::Bind(&Add, 1)); |
| 126 |
| 127 promise_executor_->StartResolve(promise); |
| 128 mock_task_runner_->RunUntilIdle(); |
| 129 EXPECT_EQ(2, promise.GetResolved()); |
| 130 } |
| 131 |
| 132 TEST_F(SingleThreadPromiseExecutorTest, ThenVoid) { |
| 133 int value = 0; |
| 134 Promise<void> promise(promise::Create(base::Bind(&ReturnOne)) |
| 135 .Then(base::Bind(&RecordParam, &value))); |
| 136 |
| 137 promise_executor_->StartResolve(promise); |
| 138 mock_task_runner_->RunUntilIdle(); |
| 139 EXPECT_EQ(1, value); |
| 140 } |
| 141 |
| 142 TEST_F(SingleThreadPromiseExecutorTest, VoidThenVoid) { |
| 143 int value = 0; |
| 144 int value2 = 0; |
| 145 Promise<void> promise(promise::Create(base::Bind(&RecordParam, &value, 1)) |
| 146 .Then(base::Bind(&RecordParam, &value2, 2))); |
| 147 |
| 148 promise_executor_->StartResolve(promise); |
| 149 mock_task_runner_->RunUntilIdle(); |
| 150 EXPECT_EQ(1, value); |
| 151 EXPECT_EQ(2, value2); |
| 152 } |
| 153 |
| 154 TEST_F(SingleThreadPromiseExecutorTest, VoidThenInt) { |
| 155 int value = 0; |
| 156 Promise<int> promise(promise::Create(base::Bind(&RecordParam, &value, 2)) |
| 157 .Then(base::Bind(&ReturnOne))); |
| 158 |
| 159 promise_executor_->StartResolve(promise); |
| 160 mock_task_runner_->RunUntilIdle(); |
| 161 EXPECT_EQ(2, value); |
| 162 EXPECT_EQ(1, promise.GetResolved()); |
| 163 } |
| 164 |
| 165 TEST_F(SingleThreadPromiseExecutorTest, ThenChaining) { |
| 166 Promise<int> promise(promise::Create(base::Bind(&ReturnOne)) |
| 167 .Then(base::Bind(&Add, 1)) |
| 168 .Then(base::Bind(&Add, 1)) |
| 169 .Then(base::Bind(&Add, 1))); |
| 170 |
| 171 promise_executor_->StartResolve(promise); |
| 172 mock_task_runner_->RunUntilIdle(); |
| 173 EXPECT_EQ(4, promise.GetResolved()); |
| 174 } |
| 175 |
| 176 TEST_F(SingleThreadPromiseExecutorTest, PromiseReuse) { |
| 177 Promise<int> promise10(promise::Create(base::Bind(&ReturnTen))); |
| 178 Promise<int> promise11(promise10.Then(base::Bind(&Add, 1))); |
| 179 Promise<int> promise12(promise10.Then(base::Bind(&Add, 2))); |
| 180 Promise<int> promise13(promise10.Then(base::Bind(&Add, 3))); |
| 181 Promise<int> promise14(promise10.Then(base::Bind(&Add, 4))); |
| 182 |
| 183 promise_executor_->StartResolve(promise11); |
| 184 promise_executor_->StartResolve(promise12); |
| 185 promise_executor_->StartResolve(promise13); |
| 186 promise_executor_->StartResolve(promise14); |
| 187 mock_task_runner_->RunUntilIdle(); |
| 188 |
| 189 EXPECT_EQ(11, promise11.GetResolved()); |
| 190 EXPECT_EQ(12, promise12.GetResolved()); |
| 191 EXPECT_EQ(13, promise13.GetResolved()); |
| 192 EXPECT_EQ(14, promise14.GetResolved()); |
| 193 } |
| 194 |
| 195 TEST_F(SingleThreadPromiseExecutorTest, PromiseReuseResolvedPromise_TypeOne) { |
| 196 Promise<int> promise10(promise::Create(10)); |
| 197 Promise<int> promise11(promise10.Then(base::Bind(&Add, 1))); |
| 198 Promise<int> promise12(promise10.Then(base::Bind(&Add, 2))); |
| 199 Promise<int> promise13(promise10.Then(base::Bind(&Add, 3))); |
| 200 Promise<int> promise14(promise10.Then(base::Bind(&Add, 4))); |
| 201 |
| 202 promise_executor_->StartResolve(promise11); |
| 203 promise_executor_->StartResolve(promise12); |
| 204 promise_executor_->StartResolve(promise13); |
| 205 promise_executor_->StartResolve(promise14); |
| 206 mock_task_runner_->RunUntilIdle(); |
| 207 |
| 208 EXPECT_EQ(11, promise11.GetResolved()); |
| 209 EXPECT_EQ(12, promise12.GetResolved()); |
| 210 EXPECT_EQ(13, promise13.GetResolved()); |
| 211 EXPECT_EQ(14, promise14.GetResolved()); |
| 212 } |
| 213 |
| 214 TEST_F(SingleThreadPromiseExecutorTest, PromiseReuseResolvedPromise_TypeTwo) { |
| 215 Promise<int> promise10(promise::Create(10)); |
| 216 Promise<int> promise11(promise10.Then(base::Bind(&Add, 1))); |
| 217 Promise<int> promise12(promise10.Then(base::Bind(&Add, 2))); |
| 218 Promise<int> promise13(promise10.Then(base::Bind(&Add, 3))); |
| 219 Promise<int> promise14(promise10.Then(base::Bind(&Add, 4))); |
| 220 |
| 221 promise_executor_->StartResolve(promise10); |
| 222 mock_task_runner_->RunUntilIdle(); |
| 223 |
| 224 promise_executor_->StartResolve(promise11); |
| 225 promise_executor_->StartResolve(promise12); |
| 226 promise_executor_->StartResolve(promise13); |
| 227 promise_executor_->StartResolve(promise14); |
| 228 mock_task_runner_->RunUntilIdle(); |
| 229 |
| 230 EXPECT_EQ(11, promise11.GetResolved()); |
| 231 EXPECT_EQ(12, promise12.GetResolved()); |
| 232 EXPECT_EQ(13, promise13.GetResolved()); |
| 233 EXPECT_EQ(14, promise14.GetResolved()); |
| 234 } |
| 235 |
| 236 TEST_F(SingleThreadPromiseExecutorTest, AllThen) { |
| 237 Promise<int> promise(promise::All(promise::Create(base::Bind(&ReturnOne)), |
| 238 promise::Create(base::Bind(&ReturnTrue))) |
| 239 .Then(base::Bind(&CondTimesThree))); |
| 240 |
| 241 promise_executor_->StartResolve(promise); |
| 242 mock_task_runner_->RunUntilIdle(); |
| 243 EXPECT_EQ(3, promise.GetResolved()); |
| 244 } |
| 245 |
| 246 TEST_F(SingleThreadPromiseExecutorTest, AssignAllThen) { |
| 247 Promise<int> promise = promise::All(promise::Create(base::Bind(&ReturnOne)), |
| 248 promise::Create(base::Bind(&ReturnTrue))) |
| 249 .Then(base::Bind(&CondTimesThree)); |
| 250 |
| 251 promise_executor_->StartResolve(promise); |
| 252 mock_task_runner_->RunUntilIdle(); |
| 253 EXPECT_EQ(3, promise.GetResolved()); |
| 254 } |
| 255 |
| 256 TEST_F(SingleThreadPromiseExecutorTest, EagerTasksExecutedFirst) { |
| 257 std::vector<int> run_order; |
| 258 |
| 259 Promise<void> promiseA( |
| 260 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 261 .Then(base::Bind(&RecordOrder, 1, &run_order)) |
| 262 .Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 263 .Then(base::Bind(&RecordOrder, 3, &run_order)) |
| 264 .Then(base::Bind(&RecordOrder, 4, &run_order))); |
| 265 |
| 266 Promise<void> promiseB( |
| 267 promise::Create(base::Bind(&RecordOrder, 10, &run_order)) |
| 268 .Then(base::Bind(&RecordOrder, 11, &run_order)) |
| 269 .Then(base::Bind(&RecordOrder, 12, &run_order)) |
| 270 .Then(base::Bind(&RecordOrder, 13, &run_order)) |
| 271 .Then(base::Bind(&RecordOrder, 14, &run_order))); |
| 272 |
| 273 promiseB.SetEager(true); |
| 274 |
| 275 promise_executor_->StartResolve(promiseA); |
| 276 promise_executor_->StartResolve(promiseB); |
| 277 mock_task_runner_->RunUntilIdle(); |
| 278 |
| 279 EXPECT_THAT(run_order, ElementsAre(10, 11, 12, 13, 14, 0, 1, 2, 3, 4)); |
| 280 } |
| 281 |
| 282 TEST_F(SingleThreadPromiseExecutorTest, DynamicChangingOfEagerness) { |
| 283 std::vector<int> run_order; |
| 284 |
| 285 Promise<void> promiseA( |
| 286 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 287 .Then(base::Bind(&RecordOrder, 1, &run_order)) |
| 288 .Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 289 .Then(base::Bind(&RecordOrder, 3, &run_order)) |
| 290 .Then(base::Bind(&RecordOrder, 4, &run_order))); |
| 291 |
| 292 Promise<void> promiseB( |
| 293 promise::Create(base::Bind(&RecordOrder, 10, &run_order)) |
| 294 .Then(base::Bind(&RecordOrder, 11, &run_order)) |
| 295 .Then(base::Bind(&RecordOrder, 12, &run_order)) |
| 296 .Then(base::Bind(&RecordOrder, 13, &run_order)) |
| 297 .Then(base::Bind(&RecordOrder, 14, &run_order))); |
| 298 |
| 299 promiseB.SetEager(true); |
| 300 |
| 301 promise_executor_->StartResolve(promiseA); |
| 302 promise_executor_->StartResolve(promiseB); |
| 303 |
| 304 promise_executor_->ResolveOnePromise(); |
| 305 |
| 306 promiseB.SetEager(false); |
| 307 promiseA.SetEager(true); |
| 308 |
| 309 mock_task_runner_->RunUntilIdle(); |
| 310 |
| 311 EXPECT_THAT(run_order, ElementsAre(10, 0, 1, 2, 3, 4, 11, 12, 13, 14)); |
| 312 } |
| 313 |
| 314 TEST_F(SingleThreadPromiseExecutorTest, MultipleThens) { |
| 315 std::vector<int> run_order; |
| 316 |
| 317 Promise<void> promiseA( |
| 318 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 319 .Then(base::Bind(&RecordOrder, 1, &run_order))); |
| 320 |
| 321 Promise<void> promiseB(promiseA.Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 322 .Then(base::Bind(&RecordOrder, 3, &run_order))); |
| 323 |
| 324 Promise<void> promiseC(promiseA.Then(base::Bind(&RecordOrder, 4, &run_order)) |
| 325 .Then(base::Bind(&RecordOrder, 5, &run_order))); |
| 326 |
| 327 promise_executor_->StartResolve(promiseB); |
| 328 promise_executor_->StartResolve(promiseC); |
| 329 mock_task_runner_->RunUntilIdle(); |
| 330 |
| 331 // The interleaving of promiseB and promiseC execution is undefined. |
| 332 EXPECT_THAT(run_order, WhenSorted(ElementsAre(0, 1, 2, 3, 4, 5))); |
| 333 } |
| 334 |
| 335 TEST_F(SingleThreadPromiseExecutorTest, Cancel) { |
| 336 std::vector<int> run_order; |
| 337 |
| 338 Promise<void> promise( |
| 339 promise::Create(base::Bind(&RecordOrder, 1, &run_order))); |
| 340 |
| 341 promise_executor_->StartResolve(promise); |
| 342 promise.Cancel(); |
| 343 |
| 344 mock_task_runner_->RunUntilIdle(); |
| 345 |
| 346 EXPECT_TRUE(run_order.empty()); |
| 347 } |
| 348 |
| 349 TEST_F(SingleThreadPromiseExecutorTest, CancelChainOfTasks) { |
| 350 std::vector<int> run_order; |
| 351 |
| 352 Promise<void> promiseA( |
| 353 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 354 .Then(base::Bind(&RecordOrder, 1, &run_order)) |
| 355 .Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 356 .Then(base::Bind(&RecordOrder, 3, &run_order)) |
| 357 .Then(base::Bind(&RecordOrder, 4, &run_order))); |
| 358 |
| 359 Promise<void> promiseB( |
| 360 promise::Create(base::Bind(&RecordOrder, 10, &run_order)) |
| 361 .Then(base::Bind(&RecordOrder, 11, &run_order)) |
| 362 .Then(base::Bind(&RecordOrder, 12, &run_order)) |
| 363 .Then(base::Bind(&RecordOrder, 13, &run_order)) |
| 364 .Then(base::Bind(&RecordOrder, 14, &run_order))); |
| 365 |
| 366 promise_executor_->StartResolve(promiseA); |
| 367 promise_executor_->StartResolve(promiseB); |
| 368 |
| 369 promiseB.Cancel(); |
| 370 |
| 371 mock_task_runner_->RunUntilIdle(); |
| 372 |
| 373 EXPECT_THAT(run_order, ElementsAre(0, 1, 2, 3, 4)); |
| 374 } |
| 375 |
| 376 TEST_F(SingleThreadPromiseExecutorTest, CancelOneBranch) { |
| 377 std::vector<int> run_order; |
| 378 |
| 379 Promise<void> promiseA( |
| 380 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 381 .Then(base::Bind(&RecordOrder, 1, &run_order))); |
| 382 |
| 383 Promise<void> promiseB(promiseA.Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 384 .Then(base::Bind(&RecordOrder, 3, &run_order))); |
| 385 |
| 386 Promise<void> promiseC(promiseA.Then(base::Bind(&RecordOrder, 4, &run_order)) |
| 387 .Then(base::Bind(&RecordOrder, 5, &run_order))); |
| 388 |
| 389 promise_executor_->StartResolve(promiseB); |
| 390 promise_executor_->StartResolve(promiseC); |
| 391 |
| 392 promiseB.Cancel(); |
| 393 |
| 394 mock_task_runner_->RunUntilIdle(); |
| 395 |
| 396 EXPECT_THAT(run_order, ElementsAre(0, 1, 4, 5)); |
| 397 } |
| 398 |
| 399 TEST_F(SingleThreadPromiseExecutorTest, CancelAndReresolve) { |
| 400 std::vector<int> run_order; |
| 401 |
| 402 Promise<void> promise( |
| 403 promise::Create(base::Bind(&RecordOrder, 1, &run_order))); |
| 404 |
| 405 promise_executor_->StartResolve(promise); |
| 406 promise.Cancel(); |
| 407 |
| 408 mock_task_runner_->RunUntilIdle(); |
| 409 |
| 410 EXPECT_TRUE(run_order.empty()); |
| 411 |
| 412 promise_executor_->StartResolve(promise); |
| 413 mock_task_runner_->RunUntilIdle(); |
| 414 |
| 415 EXPECT_THAT(run_order, ElementsAre(1)); |
| 416 } |
| 417 |
| 418 TEST_F(SingleThreadPromiseExecutorTest, CancelChainOfTasksAndReresolve) { |
| 419 std::vector<int> run_order; |
| 420 |
| 421 Promise<void> promiseA( |
| 422 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 423 .Then(base::Bind(&RecordOrder, 1, &run_order)) |
| 424 .Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 425 .Then(base::Bind(&RecordOrder, 3, &run_order)) |
| 426 .Then(base::Bind(&RecordOrder, 4, &run_order))); |
| 427 |
| 428 Promise<void> promiseB( |
| 429 promise::Create(base::Bind(&RecordOrder, 10, &run_order)) |
| 430 .Then(base::Bind(&RecordOrder, 11, &run_order)) |
| 431 .Then(base::Bind(&RecordOrder, 12, &run_order)) |
| 432 .Then(base::Bind(&RecordOrder, 13, &run_order)) |
| 433 .Then(base::Bind(&RecordOrder, 14, &run_order))); |
| 434 |
| 435 promise_executor_->StartResolve(promiseA); |
| 436 promise_executor_->StartResolve(promiseB); |
| 437 |
| 438 promiseB.Cancel(); |
| 439 |
| 440 mock_task_runner_->RunUntilIdle(); |
| 441 |
| 442 EXPECT_THAT(run_order, ElementsAre(0, 1, 2, 3, 4)); |
| 443 |
| 444 promise_executor_->StartResolve(promiseB); |
| 445 mock_task_runner_->RunUntilIdle(); |
| 446 |
| 447 EXPECT_THAT(run_order, ElementsAre(0, 1, 2, 3, 4, 10, 11, 12, 13, 14)); |
| 448 } |
| 449 |
| 450 TEST_F(SingleThreadPromiseExecutorTest, CancelOneBranchAndReresolve) { |
| 451 std::vector<int> run_order; |
| 452 |
| 453 Promise<void> promiseA( |
| 454 promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 455 .Then(base::Bind(&RecordOrder, 1, &run_order))); |
| 456 |
| 457 Promise<void> promiseB(promiseA.Then(base::Bind(&RecordOrder, 2, &run_order)) |
| 458 .Then(base::Bind(&RecordOrder, 3, &run_order))); |
| 459 |
| 460 Promise<void> promiseC(promiseA.Then(base::Bind(&RecordOrder, 4, &run_order)) |
| 461 .Then(base::Bind(&RecordOrder, 5, &run_order))); |
| 462 |
| 463 promise_executor_->StartResolve(promiseB); |
| 464 promise_executor_->StartResolve(promiseC); |
| 465 |
| 466 promiseB.Cancel(); |
| 467 |
| 468 mock_task_runner_->RunUntilIdle(); |
| 469 |
| 470 EXPECT_THAT(run_order, ElementsAre(0, 1, 4, 5)); |
| 471 |
| 472 promise_executor_->StartResolve(promiseB); |
| 473 mock_task_runner_->RunUntilIdle(); |
| 474 |
| 475 EXPECT_THAT(run_order, ElementsAre(0, 1, 4, 5, 2, 3)); |
| 476 } |
| 477 |
| 478 TEST_F(SingleThreadPromiseExecutorTest, Choose) { |
| 479 Promise<int> promise_two(promise::Create(base::Bind(&ReturnTwo))); |
| 480 Promise<int> promise_ten(promise::Create(base::Bind(&ReturnTen))); |
| 481 Promise<int> promiseA( |
| 482 promise::Create(base::Bind(&ReturnZero)) |
| 483 .Then(base::Bind(&Choose, promise_two, promise_ten))); |
| 484 |
| 485 Promise<int> promiseB( |
| 486 promise::Create(base::Bind(&ReturnOne)) |
| 487 .Then(base::Bind(&Choose, promise_two, promise_ten))); |
| 488 |
| 489 promise_executor_->StartResolve(promiseA); |
| 490 promise_executor_->StartResolve(promiseB); |
| 491 mock_task_runner_->RunUntilIdle(); |
| 492 EXPECT_EQ(10, promiseA.GetResolved()); |
| 493 EXPECT_EQ(2, promiseB.GetResolved()); |
| 494 } |
| 495 |
| 496 TEST_F(SingleThreadPromiseExecutorTest, ChooseAndAddOne) { |
| 497 Promise<int> promise_two(promise::Create(base::Bind(&ReturnTwo))); |
| 498 Promise<int> promise_ten(promise::Create(base::Bind(&ReturnTen))); |
| 499 Promise<int> promiseA(promise::Create(base::Bind(&ReturnZero)) |
| 500 .Then(base::Bind(&Choose, promise_two, promise_ten)) |
| 501 .Then(base::Bind(&Add, 1))); |
| 502 |
| 503 Promise<int> promiseB(promise::Create(base::Bind(&ReturnOne)) |
| 504 .Then(base::Bind(&Choose, promise_two, promise_ten)) |
| 505 .Then(base::Bind(&Add, 1))); |
| 506 |
| 507 promise_executor_->StartResolve(promiseA); |
| 508 promise_executor_->StartResolve(promiseB); |
| 509 mock_task_runner_->RunUntilIdle(); |
| 510 EXPECT_EQ(11, promiseA.GetResolved()); |
| 511 EXPECT_EQ(3, promiseB.GetResolved()); |
| 512 } |
| 513 |
| 514 TEST_F(SingleThreadPromiseExecutorTest, ChooseResolved) { |
| 515 Promise<int> promise_two(promise::Create(2)); |
| 516 Promise<int> promise_ten(promise::Create(10)); |
| 517 Promise<int> promiseA( |
| 518 promise::Create(base::Bind(&ReturnZero)) |
| 519 .Then(base::Bind(&Choose, promise_two, promise_ten))); |
| 520 |
| 521 Promise<int> promiseB( |
| 522 promise::Create(base::Bind(&ReturnOne)) |
| 523 .Then(base::Bind(&Choose, promise_two, promise_ten))); |
| 524 |
| 525 promise_executor_->StartResolve(promiseA); |
| 526 promise_executor_->StartResolve(promiseB); |
| 527 mock_task_runner_->RunUntilIdle(); |
| 528 EXPECT_EQ(10, promiseA.GetResolved()); |
| 529 EXPECT_EQ(2, promiseB.GetResolved()); |
| 530 } |
| 531 |
| 532 TEST_F(SingleThreadPromiseExecutorTest, ChooseResolvedAndAddOne) { |
| 533 Promise<int> promise_two(promise::Create<int>(2)); |
| 534 Promise<int> promise_ten(promise::Create<int>(10)); |
| 535 Promise<int> promiseA(promise::Create(base::Bind(&ReturnZero)) |
| 536 .Then(base::Bind(&Choose, promise_two, promise_ten)) |
| 537 .Then(base::Bind(&Add, 1))); |
| 538 |
| 539 Promise<int> promiseB(promise::Create(base::Bind(&ReturnOne)) |
| 540 .Then(base::Bind(&Choose, promise_two, promise_ten)) |
| 541 .Then(base::Bind(&Add, 1))); |
| 542 |
| 543 promise_executor_->StartResolve(promiseA); |
| 544 promise_executor_->StartResolve(promiseB); |
| 545 mock_task_runner_->RunUntilIdle(); |
| 546 EXPECT_EQ(11, promiseA.GetResolved()); |
| 547 EXPECT_EQ(3, promiseB.GetResolved()); |
| 548 } |
| 549 |
| 550 namespace { |
| 551 class BlockingResolveFixture { |
| 552 public: |
| 553 void Root() { run_order_.push_back("Root"); } |
| 554 |
| 555 void L() { run_order_.push_back("L"); } |
| 556 |
| 557 void LL() { run_order_.push_back("LL"); } |
| 558 |
| 559 void LR() { run_order_.push_back("LR"); } |
| 560 |
| 561 void R() { run_order_.push_back("R"); } |
| 562 |
| 563 void RL() { run_order_.push_back("RL"); } |
| 564 |
| 565 void RR() { run_order_.push_back("RL"); } |
| 566 |
| 567 std::vector<std::string> run_order_; |
| 568 }; |
| 569 } // namespace |
| 570 |
| 571 TEST_F(SingleThreadPromiseExecutorTest, BlockingResolve) { |
| 572 BlockingResolveFixture fixture; |
| 573 |
| 574 Promise<void> promise_l( |
| 575 promise::All(promise::Create(base::Bind(&BlockingResolveFixture::LL, |
| 576 base::Unretained(&fixture))), |
| 577 promise::Create(base::Bind(&BlockingResolveFixture::LR, |
| 578 base::Unretained(&fixture)))) |
| 579 .Then(base::Bind(&BlockingResolveFixture::L, |
| 580 base::Unretained(&fixture)))); |
| 581 |
| 582 Promise<void> blocking_promise(promise::Create<void>()); |
| 583 |
| 584 Promise<void> promise_r( |
| 585 promise::All(promise::Create(base::Bind(&BlockingResolveFixture::RL, |
| 586 base::Unretained(&fixture))), |
| 587 promise::Create(base::Bind(&BlockingResolveFixture::RR, |
| 588 base::Unretained(&fixture))), |
| 589 blocking_promise) |
| 590 .Then(base::Bind(&BlockingResolveFixture::R, |
| 591 base::Unretained(&fixture)))); |
| 592 |
| 593 Promise<void> promise_root(promise::All(promise_l, promise_r) |
| 594 .Then(base::Bind(&BlockingResolveFixture::Root, |
| 595 base::Unretained(&fixture)))); |
| 596 |
| 597 promise_executor_->StartResolve(promise_root); |
| 598 mock_task_runner_->RunUntilIdle(); |
| 599 EXPECT_THAT(fixture.run_order_, |
| 600 WhenSorted(ElementsAre(std::string("L"), std::string("LL"), |
| 601 std::string("LR"), std::string("RL"), |
| 602 std::string("RL")))); |
| 603 |
| 604 fixture.run_order_.clear(); |
| 605 blocking_promise.Resolve(); |
| 606 mock_task_runner_->RunUntilIdle(); |
| 607 EXPECT_THAT(fixture.run_order_, |
| 608 ElementsAre(std::string("R"), std::string("Root"))); |
| 609 } |
| 610 |
| 611 TEST_F(SingleThreadPromiseExecutorTest, AnyIntToInt) { |
| 612 Promise<int> promiseA(promise::Create<int>()); |
| 613 Promise<int> promiseB(promise::Create<int>()); |
| 614 Promise<int> promiseC(promise::Create<int>()); |
| 615 Promise<int> promiseD(promise::Create<int>()); |
| 616 |
| 617 Promise<int> promise(promise::Race(promiseA, promiseB, promiseC, promiseD) |
| 618 .Then(base::Bind(&Add, 1))); |
| 619 |
| 620 promise_executor_->StartResolve(promise); |
| 621 |
| 622 promiseB.Resolve(10); |
| 623 mock_task_runner_->RunUntilIdle(); |
| 624 |
| 625 EXPECT_EQ(11, promise.GetResolved()); |
| 626 } |
| 627 |
| 628 TEST_F(SingleThreadPromiseExecutorTest, AnyIntToVoid) { |
| 629 Promise<int> promiseA(promise::Create<int>()); |
| 630 Promise<int> promiseB(promise::Create<int>()); |
| 631 Promise<int> promiseC(promise::Create<int>()); |
| 632 |
| 633 int chosen = 0; |
| 634 Promise<void> promise(promise::Race(promiseA, promiseB, promiseC) |
| 635 .Then(base::Bind(&RecordParam, &chosen))); |
| 636 |
| 637 promise_executor_->StartResolve(promise); |
| 638 |
| 639 promiseB.Resolve(10); |
| 640 mock_task_runner_->RunUntilIdle(); |
| 641 |
| 642 EXPECT_EQ(10, chosen); |
| 643 } |
| 644 |
| 645 TEST_F(SingleThreadPromiseExecutorTest, AnyAllVoid) { |
| 646 Promise<void> promiseA(promise::Create<void>()); |
| 647 Promise<void> promiseB(promise::Create<void>()); |
| 648 Promise<void> promiseC(promise::Create<void>()); |
| 649 |
| 650 int chosen = 0; |
| 651 Promise<void> promise(promise::Race(promiseA, promiseB, promiseC) |
| 652 .Then(base::Bind(&RecordParam, &chosen, 1))); |
| 653 |
| 654 promise_executor_->StartResolve(promise); |
| 655 |
| 656 promiseB.Resolve(); |
| 657 mock_task_runner_->RunUntilIdle(); |
| 658 |
| 659 EXPECT_EQ(1, chosen); |
| 660 } |
| 661 |
| 662 namespace { |
| 663 Promise<int> ReturnAPromise(int value) { |
| 664 return promise::Create(value + 1); |
| 665 } |
| 666 } |
| 667 |
| 668 TEST_F(SingleThreadPromiseExecutorTest, AnyIntToIntPromise) { |
| 669 Promise<int> promiseA(promise::Create<int>()); |
| 670 Promise<int> promiseB(promise::Create<int>()); |
| 671 Promise<int> promiseC(promise::Create<int>()); |
| 672 Promise<int> promiseD(promise::Create<int>()); |
| 673 |
| 674 Promise<int> promise(promise::Race(promiseA, promiseB, promiseC, promiseD) |
| 675 .Then(base::Bind(&ReturnAPromise))); |
| 676 |
| 677 promise_executor_->StartResolve(promise); |
| 678 |
| 679 promiseD.Resolve(10); |
| 680 mock_task_runner_->RunUntilIdle(); |
| 681 |
| 682 EXPECT_EQ(11, promise.GetResolved()); |
| 683 } |
| 684 |
| 685 TEST_F(SingleThreadPromiseExecutorTest, FirstPromiseRegisteredWins) { |
| 686 Promise<int> promiseA(promise::Create<int>()); |
| 687 Promise<int> promiseB(promise::Create<int>()); |
| 688 Promise<int> promiseC(promise::Create<int>()); |
| 689 Promise<int> promiseD(promise::Create<int>()); |
| 690 |
| 691 Promise<int> promise(promise::Race(promiseA, promiseB, promiseC, promiseD) |
| 692 .Then(base::Bind(&ReturnAPromise))); |
| 693 |
| 694 promise_executor_->StartResolve(promise); |
| 695 |
| 696 promiseD.Resolve(0); |
| 697 promiseC.Resolve(10); |
| 698 promiseB.Resolve(100); |
| 699 promiseA.Resolve(1000); |
| 700 |
| 701 mock_task_runner_->RunUntilIdle(); |
| 702 |
| 703 EXPECT_EQ(1001, promise.GetResolved()); |
| 704 } |
| 705 |
| 706 namespace { |
| 707 Promise<void> ReturnAVoidPromise(int* out_value, int value) { |
| 708 return promise::Create(base::Bind(&RecordParam, out_value, value)); |
| 709 } |
| 710 } |
| 711 |
| 712 TEST_F(SingleThreadPromiseExecutorTest, AnyIntToVoidPromise) { |
| 713 Promise<int> promiseA(promise::Create<int>()); |
| 714 Promise<int> promiseB(promise::Create<int>()); |
| 715 Promise<int> promiseC(promise::Create<int>()); |
| 716 Promise<int> promiseD(promise::Create<int>()); |
| 717 |
| 718 int value = 0; |
| 719 Promise<void> promise(promise::Race(promiseA, promiseB, promiseC, promiseD) |
| 720 .Then(base::Bind(&ReturnAVoidPromise, &value))); |
| 721 |
| 722 promise_executor_->StartResolve(promise); |
| 723 |
| 724 promiseD.Resolve(15); |
| 725 mock_task_runner_->RunUntilIdle(); |
| 726 |
| 727 EXPECT_EQ(15, value); |
| 728 } |
| 729 |
| 730 TEST_F(SingleThreadPromiseExecutorTest, AnyVoidToIntPromise) { |
| 731 Promise<void> promiseA(promise::Create<void>()); |
| 732 Promise<void> promiseB(promise::Create<void>()); |
| 733 Promise<void> promiseC(promise::Create<void>()); |
| 734 Promise<void> promiseD(promise::Create<void>()); |
| 735 |
| 736 Promise<int> promise(promise::Race(promiseA, promiseB, promiseC, promiseD) |
| 737 .Then(base::Bind(&ReturnAPromise, 8))); |
| 738 |
| 739 promise_executor_->StartResolve(promise); |
| 740 |
| 741 promiseD.Resolve(); |
| 742 mock_task_runner_->RunUntilIdle(); |
| 743 |
| 744 EXPECT_EQ(9, promise.GetResolved()); |
| 745 } |
| 746 |
| 747 TEST_F(SingleThreadPromiseExecutorTest, AnyVoidToVoidPromise) { |
| 748 Promise<void> promiseA(promise::Create<void>()); |
| 749 Promise<void> promiseB(promise::Create<void>()); |
| 750 Promise<void> promiseC(promise::Create<void>()); |
| 751 Promise<void> promiseD(promise::Create<void>()); |
| 752 |
| 753 int value; |
| 754 Promise<void> promise(promise::Race(promiseA, promiseB, promiseC, promiseD) |
| 755 .Then(base::Bind(&ReturnAVoidPromise, &value, 8))); |
| 756 |
| 757 promise_executor_->StartResolve(promise); |
| 758 |
| 759 promiseD.Resolve(); |
| 760 mock_task_runner_->RunUntilIdle(); |
| 761 |
| 762 EXPECT_EQ(8, value); |
| 763 } |
| 764 |
| 765 namespace { |
| 766 Promise<void> GenerateNewTask(std::vector<int>* out_result) { |
| 767 out_result->push_back(1); |
| 768 |
| 769 return promise::Create(base::Bind(&RecordOrder, 2, out_result)) |
| 770 .Then(base::Bind(&RecordOrder, 3, out_result)); |
| 771 } |
| 772 } // namespace |
| 773 |
| 774 TEST_F(SingleThreadPromiseExecutorTest, NewPromiseFromWithinPromise) { |
| 775 std::vector<int> run_order; |
| 776 |
| 777 Promise<void> promise(promise::Create(base::Bind(&RecordOrder, 0, &run_order)) |
| 778 .Then(base::Bind(&GenerateNewTask, &run_order)) |
| 779 .Then(base::Bind(&RecordOrder, 4, &run_order))); |
| 780 |
| 781 promise_executor_->StartResolve(promise); |
| 782 |
| 783 mock_task_runner_->RunUntilIdle(); |
| 784 |
| 785 EXPECT_THAT(run_order, ElementsAre(0, 1, 2, 3, 4)); |
| 786 } |
| 787 |
| 788 TEST_F(SingleThreadPromiseExecutorTest, ResolvePromiseWithAPromise) { |
| 789 Promise<int> promise(promise::Create<int>()); |
| 790 |
| 791 promise.Resolve(promise::Create(base::Bind(&ReturnTen))); |
| 792 |
| 793 promise_executor_->StartResolve(promise); |
| 794 mock_task_runner_->RunUntilIdle(); |
| 795 |
| 796 EXPECT_EQ(10, promise.GetResolved()); |
| 797 } |
| 798 |
| 799 TEST_F(SingleThreadPromiseExecutorTest, ResolvePromiseWithAVoidPromise) { |
| 800 Promise<void> promise(promise::Create<void>()); |
| 801 |
| 802 int value = 0; |
| 803 promise.Resolve(promise::Create(base::Bind(&RecordParam, &value, 5))); |
| 804 |
| 805 promise_executor_->StartResolve(promise); |
| 806 mock_task_runner_->RunUntilIdle(); |
| 807 |
| 808 EXPECT_EQ(5, value); |
| 809 } |
| 810 |
| 811 namespace { |
| 812 class MoveOnlyType { |
| 813 public: |
| 814 MoveOnlyType() {} |
| 815 MoveOnlyType(MoveOnlyType&& other) {} |
| 816 |
| 817 void operator=(MoveOnlyType&& other) {} |
| 818 |
| 819 private: |
| 820 DISALLOW_COPY_AND_ASSIGN(MoveOnlyType); |
| 821 }; |
| 822 } // namespace |
| 823 |
| 824 TEST_F(SingleThreadPromiseExecutorTest, MoveOnlyType_ResolvedPromise_ViaMove) { |
| 825 MoveOnlyType src; |
| 826 Promise<MoveOnlyType> promise = promise::Create(std::move(src)); |
| 827 |
| 828 promise_executor_->StartResolve(promise); |
| 829 mock_task_runner_->RunUntilIdle(); |
| 830 |
| 831 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 832 } |
| 833 |
| 834 TEST_F(SingleThreadPromiseExecutorTest, |
| 835 MoveOnlyType_ResolvedPromise_Constructed) { |
| 836 Promise<MoveOnlyType> promise = promise::Create(MoveOnlyType()); |
| 837 |
| 838 promise_executor_->StartResolve(promise); |
| 839 mock_task_runner_->RunUntilIdle(); |
| 840 |
| 841 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 842 } |
| 843 |
| 844 TEST_F(SingleThreadPromiseExecutorTest, MoveOnlyType_ManuallyResolved) { |
| 845 Promise<MoveOnlyType> promise = promise::Create<MoveOnlyType>(); |
| 846 |
| 847 MoveOnlyType src; |
| 848 promise.Resolve(std::move(src)); |
| 849 |
| 850 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 851 } |
| 852 |
| 853 namespace { |
| 854 MoveOnlyType ReturnMoveOnlyType() { |
| 855 return MoveOnlyType(); |
| 856 } |
| 857 } // namespace |
| 858 |
| 859 TEST_F(SingleThreadPromiseExecutorTest, MoveOnlyType_ReturnedFromClosure) { |
| 860 Promise<MoveOnlyType> promise = |
| 861 promise::Create(base::Bind(&ReturnMoveOnlyType)); |
| 862 |
| 863 promise_executor_->StartResolve(promise); |
| 864 mock_task_runner_->RunUntilIdle(); |
| 865 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 866 } |
| 867 |
| 868 namespace { |
| 869 void TakeMoveOnlyType(MoveOnlyType type) { |
| 870 MoveOnlyType dest = std::move(type); |
| 871 } |
| 872 } // namespace |
| 873 |
| 874 TEST_F(SingleThreadPromiseExecutorTest, MoveOnlyType_PassedToThenClosure) { |
| 875 Promise<void> promise = promise::Create(base::Bind(&ReturnMoveOnlyType)) |
| 876 .Then(base::Bind(&TakeMoveOnlyType)); |
| 877 |
| 878 promise_executor_->StartResolve(promise); |
| 879 mock_task_runner_->RunUntilIdle(); |
| 880 } |
| 881 |
| 882 namespace { |
| 883 MoveOnlyType PassMoveOnlyType(MoveOnlyType type) { |
| 884 return type; |
| 885 } |
| 886 } // namespace |
| 887 |
| 888 TEST_F(SingleThreadPromiseExecutorTest, |
| 889 MoveOnlyType_PassedToAndReturnedFromThenClosure) { |
| 890 Promise<MoveOnlyType> promise = |
| 891 promise::Create(base::Bind(&ReturnMoveOnlyType)) |
| 892 .Then(base::Bind(&PassMoveOnlyType)); |
| 893 |
| 894 promise_executor_->StartResolve(promise); |
| 895 mock_task_runner_->RunUntilIdle(); |
| 896 |
| 897 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 898 } |
| 899 |
| 900 TEST_F(SingleThreadPromiseExecutorTest, MoveOnlyType_AnyThen) { |
| 901 Promise<MoveOnlyType> promise = |
| 902 promise::Race(promise::Create(base::Bind(&ReturnMoveOnlyType)), |
| 903 promise::Create(base::Bind(&ReturnMoveOnlyType)), |
| 904 promise::Create(base::Bind(&ReturnMoveOnlyType))) |
| 905 .Then(base::Bind(&PassMoveOnlyType)); |
| 906 |
| 907 promise_executor_->StartResolve(promise); |
| 908 mock_task_runner_->RunUntilIdle(); |
| 909 |
| 910 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 911 } |
| 912 |
| 913 namespace { |
| 914 MoveOnlyType PassFirstMoveOnlyType(MoveOnlyType type, |
| 915 MoveOnlyType type2, |
| 916 MoveOnlyType type3) { |
| 917 return type; |
| 918 } |
| 919 } // namespace |
| 920 |
| 921 TEST_F(SingleThreadPromiseExecutorTest, MoveOnlyType_AllThen) { |
| 922 Promise<MoveOnlyType> promise = |
| 923 promise::All(promise::Create(base::Bind(&ReturnMoveOnlyType)), |
| 924 promise::Create(base::Bind(&ReturnMoveOnlyType)), |
| 925 promise::Create(base::Bind(&ReturnMoveOnlyType))) |
| 926 .Then(base::Bind(&PassFirstMoveOnlyType)); |
| 927 |
| 928 promise_executor_->StartResolve(promise); |
| 929 mock_task_runner_->RunUntilIdle(); |
| 930 |
| 931 MoveOnlyType dest = std::move(promise.GetResolved()); |
| 932 } |
| 933 |
| 934 } // namespace promise |
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