src/components/sync_driver/non_ui_data_type_controller_unittest.cc

   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 "components/sync_driver/non_ui_data_type_controller.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/callback.h"
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/message_loop/message_loop.h"
  13 #include "base/synchronization/waitable_event.h"
  14 #include "base/test/test_timeouts.h"
  15 #include "base/threading/thread.h"
  16 #include "base/tracked_objects.h"
  17 #include "components/sync_driver/data_type_controller_mock.h"
  18 #include "components/sync_driver/generic_change_processor_factory.h"
  19 #include "components/sync_driver/non_ui_data_type_controller_mock.h"
  20 #include "sync/api/fake_syncable_service.h"
  21 #include "sync/api/sync_change.h"
  22 #include "sync/internal_api/public/engine/model_safe_worker.h"
  23 #include "testing/gmock/include/gmock/gmock.h"
  24 #include "testing/gtest/include/gtest/gtest.h"
  25
  26 namespace sync_driver {
  27
  28 namespace {
  29
  30 using base::WaitableEvent;
  31 using syncer::AUTOFILL_PROFILE;
  32 using testing::_;
  33 using testing::AtLeast;
  34 using testing::DoAll;
  35 using testing::InvokeWithoutArgs;
  36 using testing::Mock;
  37 using testing::Return;
  38 using testing::SetArgumentPointee;
  39 using testing::StrictMock;
  40
  41 ACTION_P(WaitOnEvent, event) {
  42   event->Wait();
  43 }
  44
  45 ACTION_P(SignalEvent, event) {
  46   event->Signal();
  47 }
  48
  49 ACTION_P(SaveChangeProcessor, scoped_change_processor) {
  50   scoped_change_processor->reset(arg2);
  51 }
  52
  53 ACTION_P(GetWeakPtrToSyncableService, syncable_service) {
  54   // Have to do this within an Action to ensure it's not evaluated on the wrong
  55   // thread.
  56   return syncable_service->AsWeakPtr();
  57 }
  58
  59 class SharedChangeProcessorMock : public SharedChangeProcessor {
  60  public:
  61   SharedChangeProcessorMock() {}
  62
  63   MOCK_METHOD6(Connect, base::WeakPtr<syncer::SyncableService>(
  64       SyncApiComponentFactory*,
  65       GenericChangeProcessorFactory*,
  66       syncer::UserShare*,
  67       DataTypeErrorHandler*,
  68       syncer::ModelType,
  69       const base::WeakPtr<syncer::SyncMergeResult>&));
  70   MOCK_METHOD0(Disconnect, bool());
  71   MOCK_METHOD2(ProcessSyncChanges,
  72                syncer::SyncError(const tracked_objects::Location&,
  73                          const syncer::SyncChangeList&));
  74   MOCK_CONST_METHOD2(GetAllSyncDataReturnError,
  75                      syncer::SyncError(syncer::ModelType,
  76                                        syncer::SyncDataList*));
  77   MOCK_METHOD0(GetSyncCount, int());
  78   MOCK_METHOD1(SyncModelHasUserCreatedNodes,
  79                bool(bool*));
  80   MOCK_METHOD0(CryptoReadyIfNecessary, bool());
  81   MOCK_CONST_METHOD1(GetDataTypeContext, bool(std::string*));
  82
  83  protected:
  84   virtual ~SharedChangeProcessorMock() {}
  85   MOCK_METHOD2(OnUnrecoverableError, void(const tracked_objects::Location&,
  86                                           const std::string&));
  87
  88  private:
  89   DISALLOW_COPY_AND_ASSIGN(SharedChangeProcessorMock);
  90 };
  91
  92 class NonUIDataTypeControllerFake
  93     : public NonUIDataTypeController {
  94  public:
  95   NonUIDataTypeControllerFake(
  96       SyncApiComponentFactory* sync_factory,
  97       NonUIDataTypeControllerMock* mock,
  98       SharedChangeProcessor* change_processor,
  99       scoped_refptr<base::MessageLoopProxy> backend_loop)
 100       : NonUIDataTypeController(
 101           base::MessageLoopProxy::current(),
 102           base::Closure(),
 103           sync_factory),
 104         blocked_(false),
 105         mock_(mock),
 106         change_processor_(change_processor),
 107         backend_loop_(backend_loop) {}
 108
 109   virtual syncer::ModelType type() const OVERRIDE {
 110     return AUTOFILL_PROFILE;
 111   }
 112   virtual syncer::ModelSafeGroup model_safe_group() const OVERRIDE {
 113     return syncer::GROUP_DB;
 114   }
 115
 116   // Prevent tasks from being posted on the backend thread until
 117   // UnblockBackendTasks() is called.
 118   void BlockBackendTasks() {
 119     blocked_ = true;
 120   }
 121
 122   // Post pending tasks on the backend thread and start allowing tasks
 123   // to be posted on the backend thread again.
 124   void UnblockBackendTasks() {
 125     blocked_ = false;
 126     for (std::vector<PendingTask>::const_iterator it = pending_tasks_.begin();
 127          it != pending_tasks_.end(); ++it) {
 128       PostTaskOnBackendThread(it->from_here, it->task);
 129     }
 130     pending_tasks_.clear();
 131   }
 132
 133   virtual SharedChangeProcessor* CreateSharedChangeProcessor() OVERRIDE {
 134     return change_processor_.get();
 135   }
 136
 137  protected:
 138   virtual bool PostTaskOnBackendThread(
 139       const tracked_objects::Location& from_here,
 140       const base::Closure& task) OVERRIDE {
 141     if (blocked_) {
 142       pending_tasks_.push_back(PendingTask(from_here, task));
 143       return true;
 144     } else {
 145       return backend_loop_->PostTask(from_here, task);
 146     }
 147   }
 148
 149   // We mock the following methods because their default implementations do
 150   // nothing, but we still want to make sure they're called appropriately.
 151   virtual bool StartModels() OVERRIDE {
 152     return mock_->StartModels();
 153   }
 154   virtual void StopModels() OVERRIDE {
 155     mock_->StopModels();
 156   }
 157   virtual void RecordAssociationTime(base::TimeDelta time) OVERRIDE {
 158     mock_->RecordAssociationTime(time);
 159   }
 160   virtual void RecordStartFailure(DataTypeController::ConfigureResult result)
 161       OVERRIDE {
 162     mock_->RecordStartFailure(result);
 163   }
 164
 165  private:
 166   virtual ~NonUIDataTypeControllerFake() {}
 167
 168   DISALLOW_COPY_AND_ASSIGN(NonUIDataTypeControllerFake);
 169
 170   struct PendingTask {
 171     PendingTask(const tracked_objects::Location& from_here,
 172                 const base::Closure& task)
 173         : from_here(from_here), task(task) {}
 174
 175     tracked_objects::Location from_here;
 176     base::Closure task;
 177   };
 178
 179   bool blocked_;
 180   std::vector<PendingTask> pending_tasks_;
 181   NonUIDataTypeControllerMock* mock_;
 182   scoped_refptr<SharedChangeProcessor> change_processor_;
 183   scoped_refptr<base::MessageLoopProxy> backend_loop_;
 184 };
 185
 186 class SyncNonUIDataTypeControllerTest : public testing::Test {
 187  public:
 188   SyncNonUIDataTypeControllerTest()
 189       : backend_thread_("dbthread") {}
 190
 191   virtual void SetUp() OVERRIDE {
 192     backend_thread_.Start();
 193     change_processor_ = new SharedChangeProcessorMock();
 194     // All of these are refcounted, so don't need to be released.
 195     dtc_mock_ = new StrictMock<NonUIDataTypeControllerMock>();
 196     non_ui_dtc_ =
 197         new NonUIDataTypeControllerFake(NULL,
 198                                         dtc_mock_.get(),
 199                                         change_processor_.get(),
 200                                         backend_thread_.message_loop_proxy());
 201   }
 202
 203   virtual void TearDown() OVERRIDE {
 204     backend_thread_.Stop();
 205   }
 206
 207   void WaitForDTC() {
 208     WaitableEvent done(true, false);
 209     backend_thread_.message_loop_proxy()->PostTask(
 210        FROM_HERE,
 211        base::Bind(&SyncNonUIDataTypeControllerTest::SignalDone,
 212                   &done));
 213     done.TimedWait(TestTimeouts::action_timeout());
 214     if (!done.IsSignaled()) {
 215       ADD_FAILURE() << "Timed out waiting for DB thread to finish.";
 216     }
 217     base::MessageLoop::current()->RunUntilIdle();
 218   }
 219
 220  protected:
 221   void SetStartExpectations() {
 222     EXPECT_CALL(*dtc_mock_.get(), StartModels()).WillOnce(Return(true));
 223     EXPECT_CALL(model_load_callback_, Run(_, _));
 224   }
 225
 226   void SetAssociateExpectations() {
 227     EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 228         .WillOnce(GetWeakPtrToSyncableService(&syncable_service_));
 229     EXPECT_CALL(*change_processor_.get(), CryptoReadyIfNecessary())
 230         .WillOnce(Return(true));
 231     EXPECT_CALL(*change_processor_.get(), SyncModelHasUserCreatedNodes(_))
 232         .WillOnce(DoAll(SetArgumentPointee<0>(true), Return(true)));
 233     EXPECT_CALL(*change_processor_.get(), GetAllSyncDataReturnError(_,_))
 234         .WillOnce(Return(syncer::SyncError()));
 235     EXPECT_CALL(*change_processor_.get(), GetSyncCount()).WillOnce(Return(0));
 236     EXPECT_CALL(*dtc_mock_.get(), RecordAssociationTime(_));
 237   }
 238
 239   void SetActivateExpectations(DataTypeController::ConfigureResult result) {
 240     EXPECT_CALL(start_callback_, Run(result,_,_));
 241   }
 242
 243   void SetStopExpectations() {
 244     EXPECT_CALL(*dtc_mock_.get(), StopModels());
 245     EXPECT_CALL(*change_processor_.get(), Disconnect()).WillOnce(Return(true));
 246   }
 247
 248   void SetStartFailExpectations(DataTypeController::ConfigureResult result) {
 249     EXPECT_CALL(*dtc_mock_.get(), StopModels()).Times(AtLeast(1));
 250     EXPECT_CALL(*dtc_mock_.get(), RecordStartFailure(result));
 251     EXPECT_CALL(start_callback_, Run(result, _, _));
 252   }
 253
 254   void Start() {
 255     non_ui_dtc_->LoadModels(
 256         base::Bind(&ModelLoadCallbackMock::Run,
 257                    base::Unretained(&model_load_callback_)));
 258     non_ui_dtc_->StartAssociating(
 259         base::Bind(&StartCallbackMock::Run,
 260                    base::Unretained(&start_callback_)));
 261   }
 262
 263   static void SignalDone(WaitableEvent* done) {
 264     done->Signal();
 265   }
 266
 267   base::MessageLoopForUI message_loop_;
 268   base::Thread backend_thread_;
 269
 270   StartCallbackMock start_callback_;
 271   ModelLoadCallbackMock model_load_callback_;
 272   // Must be destroyed after non_ui_dtc_.
 273   syncer::FakeSyncableService syncable_service_;
 274   scoped_refptr<NonUIDataTypeControllerFake> non_ui_dtc_;
 275   scoped_refptr<NonUIDataTypeControllerMock> dtc_mock_;
 276   scoped_refptr<SharedChangeProcessorMock> change_processor_;
 277   scoped_ptr<syncer::SyncChangeProcessor> saved_change_processor_;
 278 };
 279
 280 TEST_F(SyncNonUIDataTypeControllerTest, StartOk) {
 281   SetStartExpectations();
 282   SetAssociateExpectations();
 283   SetActivateExpectations(DataTypeController::OK);
 284   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 285   Start();
 286   WaitForDTC();
 287   EXPECT_EQ(DataTypeController::RUNNING, non_ui_dtc_->state());
 288 }
 289
 290 TEST_F(SyncNonUIDataTypeControllerTest, StartFirstRun) {
 291   SetStartExpectations();
 292   EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 293       .WillOnce(GetWeakPtrToSyncableService(&syncable_service_));
 294   EXPECT_CALL(*change_processor_.get(), CryptoReadyIfNecessary())
 295       .WillOnce(Return(true));
 296   EXPECT_CALL(*change_processor_.get(), SyncModelHasUserCreatedNodes(_))
 297       .WillOnce(DoAll(SetArgumentPointee<0>(false), Return(true)));
 298   EXPECT_CALL(*change_processor_.get(), GetAllSyncDataReturnError(_,_))
 299       .WillOnce(Return(syncer::SyncError()));
 300   EXPECT_CALL(*dtc_mock_.get(), RecordAssociationTime(_));
 301   SetActivateExpectations(DataTypeController::OK_FIRST_RUN);
 302   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 303   Start();
 304   WaitForDTC();
 305   EXPECT_EQ(DataTypeController::RUNNING, non_ui_dtc_->state());
 306 }
 307
 308 // Start the DTC and have StartModels() return false.  Then, stop the
 309 // DTC without finishing model startup.  It should stop cleanly.
 310 TEST_F(SyncNonUIDataTypeControllerTest, AbortDuringStartModels) {
 311   EXPECT_CALL(*dtc_mock_.get(), StartModels()).WillOnce(Return(false));
 312   EXPECT_CALL(*dtc_mock_.get(), StopModels());
 313   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 314   non_ui_dtc_->LoadModels(
 315       base::Bind(&ModelLoadCallbackMock::Run,
 316                  base::Unretained(&model_load_callback_)));
 317   WaitForDTC();
 318   EXPECT_EQ(DataTypeController::MODEL_STARTING, non_ui_dtc_->state());
 319   non_ui_dtc_->Stop();
 320   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 321 }
 322
 323 // Start the DTC and have MergeDataAndStartSyncing() return an error.
 324 // The DTC should become disabled, and the DTC should still stop
 325 // cleanly.
 326 TEST_F(SyncNonUIDataTypeControllerTest, StartAssociationFailed) {
 327   SetStartExpectations();
 328   EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 329       .WillOnce(GetWeakPtrToSyncableService(&syncable_service_));
 330   EXPECT_CALL(*change_processor_.get(), CryptoReadyIfNecessary())
 331       .WillOnce(Return(true));
 332   EXPECT_CALL(*change_processor_.get(), SyncModelHasUserCreatedNodes(_))
 333       .WillOnce(DoAll(SetArgumentPointee<0>(true), Return(true)));
 334   EXPECT_CALL(*change_processor_.get(), GetAllSyncDataReturnError(_,_))
 335       .WillOnce(Return(syncer::SyncError()));
 336   EXPECT_CALL(*dtc_mock_.get(), RecordAssociationTime(_));
 337   SetStartFailExpectations(DataTypeController::ASSOCIATION_FAILED);
 338   // Set up association to fail with an association failed error.
 339   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 340   syncable_service_.set_merge_data_and_start_syncing_error(
 341       syncer::SyncError(FROM_HERE,
 342                         syncer::SyncError::DATATYPE_ERROR,
 343                         "Sync Error",
 344                         non_ui_dtc_->type()));
 345   Start();
 346   WaitForDTC();
 347   EXPECT_EQ(DataTypeController::DISABLED, non_ui_dtc_->state());
 348   non_ui_dtc_->Stop();
 349   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 350 }
 351
 352 TEST_F(SyncNonUIDataTypeControllerTest,
 353        StartAssociationTriggersUnrecoverableError) {
 354   SetStartExpectations();
 355   SetStartFailExpectations(DataTypeController::UNRECOVERABLE_ERROR);
 356   // Set up association to fail with an unrecoverable error.
 357   EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 358       .WillOnce(GetWeakPtrToSyncableService(&syncable_service_));
 359   EXPECT_CALL(*change_processor_.get(), CryptoReadyIfNecessary())
 360       .WillRepeatedly(Return(true));
 361   EXPECT_CALL(*change_processor_.get(), SyncModelHasUserCreatedNodes(_))
 362       .WillRepeatedly(DoAll(SetArgumentPointee<0>(false), Return(false)));
 363   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 364   Start();
 365   WaitForDTC();
 366   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 367 }
 368
 369 TEST_F(SyncNonUIDataTypeControllerTest,
 370        StartAssociationCryptoNotReady) {
 371   SetStartExpectations();
 372   SetStartFailExpectations(DataTypeController::NEEDS_CRYPTO);
 373   // Set up association to fail with a NEEDS_CRYPTO error.
 374   EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 375       .WillOnce(GetWeakPtrToSyncableService(&syncable_service_));
 376   EXPECT_CALL(*change_processor_.get(), CryptoReadyIfNecessary())
 377       .WillRepeatedly(Return(false));
 378   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 379   Start();
 380   WaitForDTC();
 381   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 382 }
 383
 384 // Trigger a Stop() call when we check if the model associator has user created
 385 // nodes.
 386 TEST_F(SyncNonUIDataTypeControllerTest, AbortDuringAssociation) {
 387   WaitableEvent wait_for_db_thread_pause(false, false);
 388   WaitableEvent pause_db_thread(false, false);
 389
 390   SetStartExpectations();
 391   EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 392       .WillOnce(GetWeakPtrToSyncableService(&syncable_service_));
 393   EXPECT_CALL(*change_processor_.get(), CryptoReadyIfNecessary())
 394       .WillOnce(Return(true));
 395   EXPECT_CALL(*change_processor_.get(), SyncModelHasUserCreatedNodes(_))
 396       .WillOnce(DoAll(SignalEvent(&wait_for_db_thread_pause),
 397                       WaitOnEvent(&pause_db_thread),
 398                       SetArgumentPointee<0>(true),
 399                       Return(true)));
 400   EXPECT_CALL(*change_processor_.get(), GetAllSyncDataReturnError(_,_))
 401       .WillOnce(
 402           Return(syncer::SyncError(FROM_HERE,
 403                                    syncer::SyncError::DATATYPE_ERROR,
 404                                    "Disconnected.",
 405                                    AUTOFILL_PROFILE)));
 406   EXPECT_CALL(*change_processor_.get(), Disconnect())
 407       .WillOnce(DoAll(SignalEvent(&pause_db_thread), Return(true)));
 408   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 409   Start();
 410   wait_for_db_thread_pause.Wait();
 411   non_ui_dtc_->Stop();
 412   WaitForDTC();
 413   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 414 }
 415
 416 // Start the DTC while the backend tasks are blocked. Then stop the DTC before
 417 // the backend tasks get a chance to run.
 418 TEST_F(SyncNonUIDataTypeControllerTest, StartAfterSyncShutdown) {
 419   non_ui_dtc_->BlockBackendTasks();
 420
 421   SetStartExpectations();
 422   // We don't expect StopSyncing to be called because local_service_ will never
 423   // have been set.
 424   EXPECT_CALL(*change_processor_.get(), Disconnect()).WillOnce(Return(true));
 425   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 426   Start();
 427   non_ui_dtc_->Stop();
 428   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 429   Mock::VerifyAndClearExpectations(change_processor_.get());
 430   Mock::VerifyAndClearExpectations(dtc_mock_.get());
 431
 432   EXPECT_CALL(*change_processor_.get(), Connect(_, _, _, _, _, _))
 433       .WillOnce(Return(base::WeakPtr<syncer::SyncableService>()));
 434   non_ui_dtc_->UnblockBackendTasks();
 435   WaitForDTC();
 436 }
 437
 438 TEST_F(SyncNonUIDataTypeControllerTest, Stop) {
 439   SetStartExpectations();
 440   SetAssociateExpectations();
 441   SetActivateExpectations(DataTypeController::OK);
 442   SetStopExpectations();
 443   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 444   Start();
 445   WaitForDTC();
 446   EXPECT_EQ(DataTypeController::RUNNING, non_ui_dtc_->state());
 447   non_ui_dtc_->Stop();
 448   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 449 }
 450
 451 // Start the DTC then block its backend tasks.  While its backend
 452 // tasks are blocked, stop and start it again, then unblock its
 453 // backend tasks.  The (delayed) running of the backend tasks from the
 454 // stop after the restart shouldn't cause any problems.
 455 TEST_F(SyncNonUIDataTypeControllerTest, StopStart) {
 456   SetStartExpectations();
 457   SetAssociateExpectations();
 458   SetActivateExpectations(DataTypeController::OK);
 459   SetStopExpectations();
 460   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 461   Start();
 462   WaitForDTC();
 463   EXPECT_EQ(DataTypeController::RUNNING, non_ui_dtc_->state());
 464
 465   non_ui_dtc_->BlockBackendTasks();
 466   non_ui_dtc_->Stop();
 467   SetStartExpectations();
 468   SetAssociateExpectations();
 469   SetActivateExpectations(DataTypeController::OK);
 470   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 471   Start();
 472   non_ui_dtc_->UnblockBackendTasks();
 473
 474   WaitForDTC();
 475   EXPECT_EQ(DataTypeController::RUNNING, non_ui_dtc_->state());
 476 }
 477
 478 TEST_F(SyncNonUIDataTypeControllerTest, OnSingleDataTypeUnrecoverableError) {
 479   SetStartExpectations();
 480   SetAssociateExpectations();
 481   SetActivateExpectations(DataTypeController::OK);
 482   EXPECT_EQ(DataTypeController::NOT_RUNNING, non_ui_dtc_->state());
 483   Start();
 484   WaitForDTC();
 485   EXPECT_EQ(DataTypeController::RUNNING, non_ui_dtc_->state());
 486
 487   testing::Mock::VerifyAndClearExpectations(&start_callback_);
 488   EXPECT_CALL(model_load_callback_, Run(_, _));
 489   syncer::SyncError error(FROM_HERE,
 490                           syncer::SyncError::DATATYPE_ERROR,
 491                           "error",
 492                           non_ui_dtc_->type());
 493   backend_thread_.message_loop_proxy()->PostTask(FROM_HERE, base::Bind(
 494       &NonUIDataTypeControllerFake::
 495           OnSingleDataTypeUnrecoverableError,
 496       non_ui_dtc_.get(),
 497       error));
 498   WaitForDTC();
 499 }
 500
 501 }  // namespace
 502
 503 }  // namespace sync_driver