src/sync/syncable/syncable_unittest.cc

   1 // Copyright 2012 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 <string>
   6
   7 #include "base/basictypes.h"
   8 #include "base/compiler_specific.h"
   9 #include "base/files/file_path.h"
  10 #include "base/files/file_util.h"
  11 #include "base/files/scoped_temp_dir.h"
  12 #include "base/location.h"
  13 #include "base/logging.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/message_loop/message_loop.h"
  16 #include "base/stl_util.h"
  17 #include "base/synchronization/condition_variable.h"
  18 #include "base/test/values_test_util.h"
  19 #include "base/threading/platform_thread.h"
  20 #include "base/values.h"
  21 #include "sync/protocol/bookmark_specifics.pb.h"
  22 #include "sync/syncable/directory_backing_store.h"
  23 #include "sync/syncable/directory_change_delegate.h"
  24 #include "sync/syncable/directory_unittest.h"
  25 #include "sync/syncable/in_memory_directory_backing_store.h"
  26 #include "sync/syncable/metahandle_set.h"
  27 #include "sync/syncable/mutable_entry.h"
  28 #include "sync/syncable/on_disk_directory_backing_store.h"
  29 #include "sync/syncable/syncable_proto_util.h"
  30 #include "sync/syncable/syncable_read_transaction.h"
  31 #include "sync/syncable/syncable_util.h"
  32 #include "sync/syncable/syncable_write_transaction.h"
  33 #include "sync/test/engine/test_id_factory.h"
  34 #include "sync/test/engine/test_syncable_utils.h"
  35 #include "sync/test/fake_encryptor.h"
  36 #include "sync/test/null_directory_change_delegate.h"
  37 #include "sync/test/null_transaction_observer.h"
  38 #include "sync/util/test_unrecoverable_error_handler.h"
  39 #include "testing/gtest/include/gtest/gtest.h"
  40
  41 namespace syncer {
  42 namespace syncable {
  43
  44 using base::ExpectDictBooleanValue;
  45 using base::ExpectDictStringValue;
  46
  47 // An OnDiskDirectoryBackingStore that can be set to always fail SaveChanges.
  48 class TestBackingStore : public OnDiskDirectoryBackingStore {
  49  public:
  50   TestBackingStore(const std::string& dir_name,
  51                    const base::FilePath& backing_filepath);
  52
  53   ~TestBackingStore() override;
  54
  55   bool SaveChanges(const Directory::SaveChangesSnapshot& snapshot) override;
  56
  57    void StartFailingSaveChanges() {
  58      fail_save_changes_ = true;
  59    }
  60
  61  private:
  62    bool fail_save_changes_;
  63 };
  64
  65 TestBackingStore::TestBackingStore(const std::string& dir_name,
  66                                    const base::FilePath& backing_filepath)
  67   : OnDiskDirectoryBackingStore(dir_name, backing_filepath),
  68     fail_save_changes_(false) {
  69 }
  70
  71 TestBackingStore::~TestBackingStore() { }
  72
  73 bool TestBackingStore::SaveChanges(
  74     const Directory::SaveChangesSnapshot& snapshot){
  75   if (fail_save_changes_) {
  76     return false;
  77   } else {
  78     return OnDiskDirectoryBackingStore::SaveChanges(snapshot);
  79   }
  80 }
  81
  82 // A directory whose Save() function can be set to always fail.
  83 class TestDirectory : public Directory {
  84  public:
  85   // A factory function used to work around some initialization order issues.
  86   static TestDirectory* Create(
  87       Encryptor *encryptor,
  88       UnrecoverableErrorHandler *handler,
  89       const std::string& dir_name,
  90       const base::FilePath& backing_filepath);
  91
  92   ~TestDirectory() override;
  93
  94   void StartFailingSaveChanges() {
  95     backing_store_->StartFailingSaveChanges();
  96   }
  97
  98  private:
  99   TestDirectory(Encryptor* encryptor,
 100                 UnrecoverableErrorHandler* handler,
 101                 TestBackingStore* backing_store);
 102
 103   TestBackingStore* backing_store_;
 104 };
 105
 106 TestDirectory* TestDirectory::Create(
 107     Encryptor *encryptor,
 108     UnrecoverableErrorHandler *handler,
 109     const std::string& dir_name,
 110     const base::FilePath& backing_filepath) {
 111   TestBackingStore* backing_store =
 112       new TestBackingStore(dir_name, backing_filepath);
 113   return new TestDirectory(encryptor, handler, backing_store);
 114 }
 115
 116 TestDirectory::TestDirectory(Encryptor* encryptor,
 117                              UnrecoverableErrorHandler* handler,
 118                              TestBackingStore* backing_store)
 119     : Directory(backing_store, handler, NULL, NULL, NULL),
 120       backing_store_(backing_store) {
 121 }
 122
 123 TestDirectory::~TestDirectory() { }
 124
 125 TEST(OnDiskSyncableDirectory, FailInitialWrite) {
 126   base::MessageLoop message_loop;
 127   FakeEncryptor encryptor;
 128   TestUnrecoverableErrorHandler handler;
 129   base::ScopedTempDir temp_dir;
 130   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 131   base::FilePath file_path = temp_dir.path().Append(
 132       FILE_PATH_LITERAL("Test.sqlite3"));
 133   std::string name = "user@x.com";
 134   NullDirectoryChangeDelegate delegate;
 135
 136   scoped_ptr<TestDirectory> test_dir(
 137       TestDirectory::Create(&encryptor, &handler, name, file_path));
 138
 139   test_dir->StartFailingSaveChanges();
 140   ASSERT_EQ(FAILED_INITIAL_WRITE, test_dir->Open(name, &delegate,
 141                                                  NullTransactionObserver()));
 142 }
 143
 144 // A variant of SyncableDirectoryTest that uses a real sqlite database.
 145 class OnDiskSyncableDirectoryTest : public SyncableDirectoryTest {
 146  protected:
 147   // SetUp() is called before each test case is run.
 148   // The sqlite3 DB is deleted before each test is run.
 149   virtual void SetUp() {
 150     SyncableDirectoryTest::SetUp();
 151     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 152     file_path_ = temp_dir_.path().Append(
 153         FILE_PATH_LITERAL("Test.sqlite3"));
 154     base::DeleteFile(file_path_, true);
 155     CreateDirectory();
 156   }
 157
 158   virtual void TearDown() {
 159     // This also closes file handles.
 160     dir()->SaveChanges();
 161     dir().reset();
 162     base::DeleteFile(file_path_, true);
 163     SyncableDirectoryTest::TearDown();
 164   }
 165
 166   // Creates a new directory.  Deletes the old directory, if it exists.
 167   void CreateDirectory() {
 168     test_directory_ = TestDirectory::Create(
 169         encryptor(), unrecoverable_error_handler(), kDirectoryName, file_path_);
 170     dir().reset(test_directory_);
 171     ASSERT_TRUE(dir().get());
 172     ASSERT_EQ(OPENED,
 173               dir()->Open(kDirectoryName,
 174                           directory_change_delegate(),
 175                           NullTransactionObserver()));
 176     ASSERT_TRUE(dir()->good());
 177   }
 178
 179   void SaveAndReloadDir() {
 180     dir()->SaveChanges();
 181     CreateDirectory();
 182   }
 183
 184   void StartFailingSaveChanges() {
 185     test_directory_->StartFailingSaveChanges();
 186   }
 187
 188   TestDirectory *test_directory_;  // mirrors scoped_ptr<Directory> dir_
 189   base::ScopedTempDir temp_dir_;
 190   base::FilePath file_path_;
 191 };
 192
 193 sync_pb::DataTypeContext BuildContext(ModelType type) {
 194   sync_pb::DataTypeContext context;
 195   context.set_context("context");
 196   context.set_data_type_id(GetSpecificsFieldNumberFromModelType(type));
 197   return context;
 198 }
 199
 200 TEST_F(OnDiskSyncableDirectoryTest, TestPurgeEntriesWithTypeIn) {
 201   sync_pb::EntitySpecifics bookmark_specs;
 202   sync_pb::EntitySpecifics autofill_specs;
 203   sync_pb::EntitySpecifics preference_specs;
 204   AddDefaultFieldValue(BOOKMARKS, &bookmark_specs);
 205   AddDefaultFieldValue(PREFERENCES, &preference_specs);
 206   AddDefaultFieldValue(AUTOFILL, &autofill_specs);
 207
 208   ModelTypeSet types_to_purge(PREFERENCES, AUTOFILL);
 209
 210   dir()->SetDownloadProgress(BOOKMARKS, BuildProgress(BOOKMARKS));
 211   dir()->SetDownloadProgress(PREFERENCES, BuildProgress(PREFERENCES));
 212   dir()->SetDownloadProgress(AUTOFILL, BuildProgress(AUTOFILL));
 213
 214   TestIdFactory id_factory;
 215   // Create some items for each type.
 216   {
 217     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 218
 219     dir()->SetDataTypeContext(&trans, BOOKMARKS, BuildContext(BOOKMARKS));
 220     dir()->SetDataTypeContext(&trans, PREFERENCES, BuildContext(PREFERENCES));
 221     dir()->SetDataTypeContext(&trans, AUTOFILL, BuildContext(AUTOFILL));
 222
 223     // Make it look like these types have completed initial sync.
 224     CreateTypeRoot(&trans, dir().get(), BOOKMARKS);
 225     CreateTypeRoot(&trans, dir().get(), PREFERENCES);
 226     CreateTypeRoot(&trans, dir().get(), AUTOFILL);
 227
 228     // Add more nodes for this type.  Technically, they should be placed under
 229     // the proper type root nodes but the assertions in this test won't notice
 230     // if their parent isn't quite right.
 231     MutableEntry item1(&trans, CREATE, BOOKMARKS, trans.root_id(), "Item");
 232     ASSERT_TRUE(item1.good());
 233     item1.PutServerSpecifics(bookmark_specs);
 234     item1.PutIsUnsynced(true);
 235
 236     MutableEntry item2(&trans, CREATE_NEW_UPDATE_ITEM,
 237                        id_factory.NewServerId());
 238     ASSERT_TRUE(item2.good());
 239     item2.PutServerSpecifics(bookmark_specs);
 240     item2.PutIsUnappliedUpdate(true);
 241
 242     MutableEntry item3(&trans, CREATE, PREFERENCES,
 243                        trans.root_id(), "Item");
 244     ASSERT_TRUE(item3.good());
 245     item3.PutSpecifics(preference_specs);
 246     item3.PutServerSpecifics(preference_specs);
 247     item3.PutIsUnsynced(true);
 248
 249     MutableEntry item4(&trans, CREATE_NEW_UPDATE_ITEM,
 250                        id_factory.NewServerId());
 251     ASSERT_TRUE(item4.good());
 252     item4.PutServerSpecifics(preference_specs);
 253     item4.PutIsUnappliedUpdate(true);
 254
 255     MutableEntry item5(&trans, CREATE, AUTOFILL,
 256                        trans.root_id(), "Item");
 257     ASSERT_TRUE(item5.good());
 258     item5.PutSpecifics(autofill_specs);
 259     item5.PutServerSpecifics(autofill_specs);
 260     item5.PutIsUnsynced(true);
 261
 262     MutableEntry item6(&trans, CREATE_NEW_UPDATE_ITEM,
 263       id_factory.NewServerId());
 264     ASSERT_TRUE(item6.good());
 265     item6.PutServerSpecifics(autofill_specs);
 266     item6.PutIsUnappliedUpdate(true);
 267   }
 268
 269   dir()->SaveChanges();
 270   {
 271     ReadTransaction trans(FROM_HERE, dir().get());
 272     MetahandleSet all_set;
 273     GetAllMetaHandles(&trans, &all_set);
 274     ASSERT_EQ(10U, all_set.size());
 275   }
 276
 277   dir()->PurgeEntriesWithTypeIn(types_to_purge, ModelTypeSet(), ModelTypeSet());
 278
 279   // We first query the in-memory data, and then reload the directory (without
 280   // saving) to verify that disk does not still have the data.
 281   CheckPurgeEntriesWithTypeInSucceeded(types_to_purge, true);
 282   SaveAndReloadDir();
 283   CheckPurgeEntriesWithTypeInSucceeded(types_to_purge, false);
 284 }
 285
 286 TEST_F(OnDiskSyncableDirectoryTest, TestShareInfo) {
 287   dir()->set_store_birthday("Jan 31st");
 288   const char* const bag_of_chips_array = "\0bag of chips";
 289   const std::string bag_of_chips_string =
 290       std::string(bag_of_chips_array, sizeof(bag_of_chips_array));
 291   dir()->set_bag_of_chips(bag_of_chips_string);
 292   {
 293     ReadTransaction trans(FROM_HERE, dir().get());
 294     EXPECT_EQ("Jan 31st", dir()->store_birthday());
 295     EXPECT_EQ(bag_of_chips_string, dir()->bag_of_chips());
 296   }
 297   dir()->set_store_birthday("April 10th");
 298   const char* const bag_of_chips2_array = "\0bag of chips2";
 299   const std::string bag_of_chips2_string =
 300       std::string(bag_of_chips2_array, sizeof(bag_of_chips2_array));
 301   dir()->set_bag_of_chips(bag_of_chips2_string);
 302   dir()->SaveChanges();
 303   {
 304     ReadTransaction trans(FROM_HERE, dir().get());
 305     EXPECT_EQ("April 10th", dir()->store_birthday());
 306     EXPECT_EQ(bag_of_chips2_string, dir()->bag_of_chips());
 307   }
 308   const char* const bag_of_chips3_array = "\0bag of chips3";
 309   const std::string bag_of_chips3_string =
 310       std::string(bag_of_chips3_array, sizeof(bag_of_chips3_array));
 311   dir()->set_bag_of_chips(bag_of_chips3_string);
 312   // Restore the directory from disk.  Make sure that nothing's changed.
 313   SaveAndReloadDir();
 314   {
 315     ReadTransaction trans(FROM_HERE, dir().get());
 316     EXPECT_EQ("April 10th", dir()->store_birthday());
 317     EXPECT_EQ(bag_of_chips3_string, dir()->bag_of_chips());
 318   }
 319 }
 320
 321 TEST_F(OnDiskSyncableDirectoryTest,
 322        TestSimpleFieldsPreservedDuringSaveChanges) {
 323   Id update_id = TestIdFactory::FromNumber(1);
 324   Id create_id;
 325   EntryKernel create_pre_save, update_pre_save;
 326   EntryKernel create_post_save, update_post_save;
 327   std::string create_name =  "Create";
 328
 329   {
 330     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 331     MutableEntry create(
 332         &trans, CREATE, BOOKMARKS, trans.root_id(), create_name);
 333     MutableEntry update(&trans, CREATE_NEW_UPDATE_ITEM, update_id);
 334     create.PutIsUnsynced(true);
 335     update.PutIsUnappliedUpdate(true);
 336     sync_pb::EntitySpecifics specifics;
 337     specifics.mutable_bookmark()->set_favicon("PNG");
 338     specifics.mutable_bookmark()->set_url("http://nowhere");
 339     create.PutSpecifics(specifics);
 340     update.PutServerSpecifics(specifics);
 341     create_pre_save = create.GetKernelCopy();
 342     update_pre_save = update.GetKernelCopy();
 343     create_id = create.GetId();
 344   }
 345
 346   dir()->SaveChanges();
 347   dir().reset(
 348       new Directory(new OnDiskDirectoryBackingStore(kDirectoryName, file_path_),
 349                     unrecoverable_error_handler(),
 350                     NULL,
 351                     NULL,
 352                     NULL));
 353
 354   ASSERT_TRUE(dir().get());
 355   ASSERT_EQ(OPENED,
 356             dir()->Open(kDirectoryName,
 357                         directory_change_delegate(),
 358                         NullTransactionObserver()));
 359   ASSERT_TRUE(dir()->good());
 360
 361   {
 362     ReadTransaction trans(FROM_HERE, dir().get());
 363     Entry create(&trans, GET_BY_ID, create_id);
 364     EXPECT_EQ(1, CountEntriesWithName(&trans, trans.root_id(), create_name));
 365     Entry update(&trans, GET_BY_ID, update_id);
 366     create_post_save = create.GetKernelCopy();
 367     update_post_save = update.GetKernelCopy();
 368   }
 369   int i = BEGIN_FIELDS;
 370   for ( ; i < INT64_FIELDS_END ; ++i) {
 371     EXPECT_EQ(create_pre_save.ref((Int64Field)i) +
 372                   (i == TRANSACTION_VERSION ? 1 : 0),
 373               create_post_save.ref((Int64Field)i))
 374               << "int64 field #" << i << " changed during save/load";
 375     EXPECT_EQ(update_pre_save.ref((Int64Field)i),
 376               update_post_save.ref((Int64Field)i))
 377         << "int64 field #" << i << " changed during save/load";
 378   }
 379   for ( ; i < TIME_FIELDS_END ; ++i) {
 380     EXPECT_EQ(create_pre_save.ref((TimeField)i),
 381               create_post_save.ref((TimeField)i))
 382               << "time field #" << i << " changed during save/load";
 383     EXPECT_EQ(update_pre_save.ref((TimeField)i),
 384               update_post_save.ref((TimeField)i))
 385               << "time field #" << i << " changed during save/load";
 386   }
 387   for ( ; i < ID_FIELDS_END ; ++i) {
 388     EXPECT_EQ(create_pre_save.ref((IdField)i),
 389               create_post_save.ref((IdField)i))
 390               << "id field #" << i << " changed during save/load";
 391     EXPECT_EQ(update_pre_save.ref((IdField)i),
 392               update_pre_save.ref((IdField)i))
 393               << "id field #" << i << " changed during save/load";
 394   }
 395   for ( ; i < BIT_FIELDS_END ; ++i) {
 396     EXPECT_EQ(create_pre_save.ref((BitField)i),
 397               create_post_save.ref((BitField)i))
 398               << "Bit field #" << i << " changed during save/load";
 399     EXPECT_EQ(update_pre_save.ref((BitField)i),
 400               update_post_save.ref((BitField)i))
 401               << "Bit field #" << i << " changed during save/load";
 402   }
 403   for ( ; i < STRING_FIELDS_END ; ++i) {
 404     EXPECT_EQ(create_pre_save.ref((StringField)i),
 405               create_post_save.ref((StringField)i))
 406               << "String field #" << i << " changed during save/load";
 407     EXPECT_EQ(update_pre_save.ref((StringField)i),
 408               update_post_save.ref((StringField)i))
 409               << "String field #" << i << " changed during save/load";
 410   }
 411   for ( ; i < PROTO_FIELDS_END; ++i) {
 412     EXPECT_EQ(create_pre_save.ref((ProtoField)i).SerializeAsString(),
 413               create_post_save.ref((ProtoField)i).SerializeAsString())
 414               << "Blob field #" << i << " changed during save/load";
 415     EXPECT_EQ(update_pre_save.ref((ProtoField)i).SerializeAsString(),
 416               update_post_save.ref((ProtoField)i).SerializeAsString())
 417               << "Blob field #" << i << " changed during save/load";
 418   }
 419   for ( ; i < UNIQUE_POSITION_FIELDS_END; ++i) {
 420     EXPECT_TRUE(create_pre_save.ref((UniquePositionField)i).Equals(
 421         create_post_save.ref((UniquePositionField)i)))
 422         << "Position field #" << i << " changed during save/load";
 423     EXPECT_TRUE(update_pre_save.ref((UniquePositionField)i).Equals(
 424         update_post_save.ref((UniquePositionField)i)))
 425         << "Position field #" << i << " changed during save/load";
 426   }
 427 }
 428
 429 TEST_F(OnDiskSyncableDirectoryTest, TestSaveChangesFailure) {
 430   int64 handle1 = 0;
 431   // Set up an item using a regular, saveable directory.
 432   {
 433     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 434
 435     MutableEntry e1(&trans, CREATE, BOOKMARKS, trans.root_id(), "aguilera");
 436     ASSERT_TRUE(e1.good());
 437     EXPECT_TRUE(e1.GetKernelCopy().is_dirty());
 438     handle1 = e1.GetMetahandle();
 439     e1.PutBaseVersion(1);
 440     e1.PutIsDir(true);
 441     e1.PutId(TestIdFactory::FromNumber(101));
 442     EXPECT_TRUE(e1.GetKernelCopy().is_dirty());
 443     EXPECT_TRUE(IsInDirtyMetahandles(handle1));
 444   }
 445   ASSERT_TRUE(dir()->SaveChanges());
 446
 447   // Make sure the item is no longer dirty after saving,
 448   // and make a modification.
 449   {
 450     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 451
 452     MutableEntry aguilera(&trans, GET_BY_HANDLE, handle1);
 453     ASSERT_TRUE(aguilera.good());
 454     EXPECT_FALSE(aguilera.GetKernelCopy().is_dirty());
 455     EXPECT_EQ(aguilera.GetNonUniqueName(), "aguilera");
 456     aguilera.PutNonUniqueName("overwritten");
 457     EXPECT_TRUE(aguilera.GetKernelCopy().is_dirty());
 458     EXPECT_TRUE(IsInDirtyMetahandles(handle1));
 459   }
 460   ASSERT_TRUE(dir()->SaveChanges());
 461
 462   // Now do some operations when SaveChanges() will fail.
 463   StartFailingSaveChanges();
 464   ASSERT_TRUE(dir()->good());
 465
 466   int64 handle2 = 0;
 467   {
 468     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 469
 470     MutableEntry aguilera(&trans, GET_BY_HANDLE, handle1);
 471     ASSERT_TRUE(aguilera.good());
 472     EXPECT_FALSE(aguilera.GetKernelCopy().is_dirty());
 473     EXPECT_EQ(aguilera.GetNonUniqueName(), "overwritten");
 474     EXPECT_FALSE(aguilera.GetKernelCopy().is_dirty());
 475     EXPECT_FALSE(IsInDirtyMetahandles(handle1));
 476     aguilera.PutNonUniqueName("christina");
 477     EXPECT_TRUE(aguilera.GetKernelCopy().is_dirty());
 478     EXPECT_TRUE(IsInDirtyMetahandles(handle1));
 479
 480     // New item.
 481     MutableEntry kids_on_block(
 482         &trans, CREATE, BOOKMARKS, trans.root_id(), "kids");
 483     ASSERT_TRUE(kids_on_block.good());
 484     handle2 = kids_on_block.GetMetahandle();
 485     kids_on_block.PutBaseVersion(1);
 486     kids_on_block.PutIsDir(true);
 487     kids_on_block.PutId(TestIdFactory::FromNumber(102));
 488     EXPECT_TRUE(kids_on_block.GetKernelCopy().is_dirty());
 489     EXPECT_TRUE(IsInDirtyMetahandles(handle2));
 490   }
 491
 492   // We are using an unsaveable directory, so this can't succeed.  However,
 493   // the HandleSaveChangesFailure code path should have been triggered.
 494   ASSERT_FALSE(dir()->SaveChanges());
 495
 496   // Make sure things were rolled back and the world is as it was before call.
 497   {
 498     ReadTransaction trans(FROM_HERE, dir().get());
 499     Entry e1(&trans, GET_BY_HANDLE, handle1);
 500     ASSERT_TRUE(e1.good());
 501     EntryKernel aguilera = e1.GetKernelCopy();
 502     Entry kids(&trans, GET_BY_HANDLE, handle2);
 503     ASSERT_TRUE(kids.good());
 504     EXPECT_TRUE(kids.GetKernelCopy().is_dirty());
 505     EXPECT_TRUE(IsInDirtyMetahandles(handle2));
 506     EXPECT_TRUE(aguilera.is_dirty());
 507     EXPECT_TRUE(IsInDirtyMetahandles(handle1));
 508   }
 509 }
 510
 511 TEST_F(OnDiskSyncableDirectoryTest, TestSaveChangesFailureWithPurge) {
 512   int64 handle1 = 0;
 513   // Set up an item and progress marker using a regular, saveable directory.
 514   dir()->SetDownloadProgress(BOOKMARKS, BuildProgress(BOOKMARKS));
 515   {
 516     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 517
 518     MutableEntry e1(&trans, CREATE, BOOKMARKS, trans.root_id(), "aguilera");
 519     ASSERT_TRUE(e1.good());
 520     EXPECT_TRUE(e1.GetKernelCopy().is_dirty());
 521     handle1 = e1.GetMetahandle();
 522     e1.PutBaseVersion(1);
 523     e1.PutIsDir(true);
 524     e1.PutId(TestIdFactory::FromNumber(101));
 525     sync_pb::EntitySpecifics bookmark_specs;
 526     AddDefaultFieldValue(BOOKMARKS, &bookmark_specs);
 527     e1.PutSpecifics(bookmark_specs);
 528     e1.PutServerSpecifics(bookmark_specs);
 529     e1.PutId(TestIdFactory::FromNumber(101));
 530     EXPECT_TRUE(e1.GetKernelCopy().is_dirty());
 531     EXPECT_TRUE(IsInDirtyMetahandles(handle1));
 532   }
 533   ASSERT_TRUE(dir()->SaveChanges());
 534
 535   // Now do some operations while SaveChanges() is set to fail.
 536   StartFailingSaveChanges();
 537   ASSERT_TRUE(dir()->good());
 538
 539   ModelTypeSet set(BOOKMARKS);
 540   dir()->PurgeEntriesWithTypeIn(set, ModelTypeSet(), ModelTypeSet());
 541   EXPECT_TRUE(IsInMetahandlesToPurge(handle1));
 542   ASSERT_FALSE(dir()->SaveChanges());
 543   EXPECT_TRUE(IsInMetahandlesToPurge(handle1));
 544 }
 545
 546 class SyncableDirectoryManagement : public testing::Test {
 547  public:
 548   virtual void SetUp() {
 549     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
 550   }
 551
 552   virtual void TearDown() {
 553   }
 554  protected:
 555   base::MessageLoop message_loop_;
 556   base::ScopedTempDir temp_dir_;
 557   FakeEncryptor encryptor_;
 558   TestUnrecoverableErrorHandler handler_;
 559   NullDirectoryChangeDelegate delegate_;
 560 };
 561
 562 TEST_F(SyncableDirectoryManagement, TestFileRelease) {
 563   base::FilePath path =
 564       temp_dir_.path().Append(Directory::kSyncDatabaseFilename);
 565
 566   Directory dir(new OnDiskDirectoryBackingStore("ScopeTest", path),
 567                 &handler_,
 568                 NULL,
 569                 NULL,
 570                 NULL);
 571   DirOpenResult result =
 572       dir.Open("ScopeTest", &delegate_, NullTransactionObserver());
 573   ASSERT_EQ(result, OPENED);
 574   dir.Close();
 575
 576   // Closing the directory should have released the backing database file.
 577   ASSERT_TRUE(base::DeleteFile(path, true));
 578 }
 579
 580 class SyncableClientTagTest : public SyncableDirectoryTest {
 581  public:
 582   static const int kBaseVersion = 1;
 583   const char* test_name_;
 584   const char* test_tag_;
 585
 586   SyncableClientTagTest() : test_name_("test_name"), test_tag_("dietcoke") {}
 587
 588   bool CreateWithDefaultTag(Id id, bool deleted) {
 589     WriteTransaction wtrans(FROM_HERE, UNITTEST, dir().get());
 590     MutableEntry me(&wtrans, CREATE, PREFERENCES,
 591                     wtrans.root_id(), test_name_);
 592     CHECK(me.good());
 593     me.PutId(id);
 594     if (id.ServerKnows()) {
 595       me.PutBaseVersion(kBaseVersion);
 596     }
 597     me.PutIsUnsynced(true);
 598     me.PutIsDel(deleted);
 599     me.PutIsDir(false);
 600     return me.PutUniqueClientTag(test_tag_);
 601   }
 602
 603   // Verify an entry exists with the default tag.
 604   void VerifyTag(Id id, bool deleted) {
 605     // Should still be present and valid in the client tag index.
 606     ReadTransaction trans(FROM_HERE, dir().get());
 607     Entry me(&trans, GET_BY_CLIENT_TAG, test_tag_);
 608     CHECK(me.good());
 609     EXPECT_EQ(me.GetId(), id);
 610     EXPECT_EQ(me.GetUniqueClientTag(), test_tag_);
 611     EXPECT_EQ(me.GetIsDel(), deleted);
 612
 613     // We only sync deleted items that the server knew about.
 614     if (me.GetId().ServerKnows() || !me.GetIsDel()) {
 615       EXPECT_EQ(me.GetIsUnsynced(), true);
 616     }
 617   }
 618
 619  protected:
 620   TestIdFactory factory_;
 621 };
 622
 623 TEST_F(SyncableClientTagTest, TestClientTagClear) {
 624   Id server_id = factory_.NewServerId();
 625   EXPECT_TRUE(CreateWithDefaultTag(server_id, false));
 626   {
 627     WriteTransaction trans(FROM_HERE, UNITTEST, dir().get());
 628     MutableEntry me(&trans, GET_BY_CLIENT_TAG, test_tag_);
 629     EXPECT_TRUE(me.good());
 630     me.PutUniqueClientTag(std::string());
 631   }
 632   {
 633     ReadTransaction trans(FROM_HERE, dir().get());
 634     Entry by_tag(&trans, GET_BY_CLIENT_TAG, test_tag_);
 635     EXPECT_FALSE(by_tag.good());
 636
 637     Entry by_id(&trans, GET_BY_ID, server_id);
 638     EXPECT_TRUE(by_id.good());
 639     EXPECT_TRUE(by_id.GetUniqueClientTag().empty());
 640   }
 641 }
 642
 643 TEST_F(SyncableClientTagTest, TestClientTagIndexServerId) {
 644   Id server_id = factory_.NewServerId();
 645   EXPECT_TRUE(CreateWithDefaultTag(server_id, false));
 646   VerifyTag(server_id, false);
 647 }
 648
 649 TEST_F(SyncableClientTagTest, TestClientTagIndexClientId) {
 650   Id client_id = factory_.NewLocalId();
 651   EXPECT_TRUE(CreateWithDefaultTag(client_id, false));
 652   VerifyTag(client_id, false);
 653 }
 654
 655 TEST_F(SyncableClientTagTest, TestDeletedClientTagIndexClientId) {
 656   Id client_id = factory_.NewLocalId();
 657   EXPECT_TRUE(CreateWithDefaultTag(client_id, true));
 658   VerifyTag(client_id, true);
 659 }
 660
 661 TEST_F(SyncableClientTagTest, TestDeletedClientTagIndexServerId) {
 662   Id server_id = factory_.NewServerId();
 663   EXPECT_TRUE(CreateWithDefaultTag(server_id, true));
 664   VerifyTag(server_id, true);
 665 }
 666
 667 TEST_F(SyncableClientTagTest, TestClientTagIndexDuplicateServer) {
 668   EXPECT_TRUE(CreateWithDefaultTag(factory_.NewServerId(), true));
 669   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewServerId(), true));
 670   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewServerId(), false));
 671   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewLocalId(), false));
 672   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewLocalId(), true));
 673 }
 674
 675 }  // namespace syncable
 676 }  // namespace syncer