chrome/browser/sync_file_system/local/canned_syncable_file_system.cc

   1 // Copyright 2013 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 "chrome/browser/sync_file_system/local/canned_syncable_file_system.h"
   6
   7 #include <algorithm>
   8 #include <iterator>
   9
  10 #include "base/bind.h"
  11 #include "base/bind_helpers.h"
  12 #include "base/file_util.h"
  13 #include "base/guid.h"
  14 #include "base/message_loop/message_loop_proxy.h"
  15 #include "base/run_loop.h"
  16 #include "base/single_thread_task_runner.h"
  17 #include "base/task_runner_util.h"
  18 #include "chrome/browser/sync_file_system/file_change.h"
  19 #include "chrome/browser/sync_file_system/local/local_file_change_tracker.h"
  20 #include "chrome/browser/sync_file_system/local/local_file_sync_context.h"
  21 #include "chrome/browser/sync_file_system/local/sync_file_system_backend.h"
  22 #include "chrome/browser/sync_file_system/syncable_file_system_util.h"
  23 #include "content/public/test/test_file_system_options.h"
  24 #include "testing/gtest/include/gtest/gtest.h"
  25 #include "webkit/browser/blob/mock_blob_url_request_context.h"
  26 #include "webkit/browser/fileapi/external_mount_points.h"
  27 #include "webkit/browser/fileapi/file_system_backend.h"
  28 #include "webkit/browser/fileapi/file_system_context.h"
  29 #include "webkit/browser/fileapi/file_system_operation_context.h"
  30 #include "webkit/browser/fileapi/file_system_operation_runner.h"
  31 #include "webkit/browser/quota/mock_special_storage_policy.h"
  32 #include "webkit/browser/quota/quota_manager.h"
  33 #include "webkit/common/blob/shareable_file_reference.h"
  34
  35 using base::PlatformFileError;
  36 using fileapi::FileSystemContext;
  37 using fileapi::FileSystemOperationRunner;
  38 using fileapi::FileSystemURL;
  39 using fileapi::FileSystemURLSet;
  40 using quota::QuotaManager;
  41 using webkit_blob::MockBlobURLRequestContext;
  42 using webkit_blob::ScopedTextBlob;
  43
  44 namespace sync_file_system {
  45
  46 namespace {
  47
  48 void Quit() { base::MessageLoop::current()->Quit(); }
  49
  50 template <typename R>
  51 void AssignAndQuit(base::TaskRunner* original_task_runner,
  52                    R* result_out, R result) {
  53   DCHECK(result_out);
  54   *result_out = result;
  55   original_task_runner->PostTask(FROM_HERE, base::Bind(&Quit));
  56 }
  57
  58 template <typename R>
  59 R RunOnThread(
  60     base::SingleThreadTaskRunner* task_runner,
  61     const tracked_objects::Location& location,
  62     const base::Callback<void(const base::Callback<void(R)>& callback)>& task) {
  63   R result;
  64   task_runner->PostTask(
  65       location,
  66       base::Bind(task, base::Bind(&AssignAndQuit<R>,
  67                                   base::MessageLoopProxy::current(),
  68                                   &result)));
  69   base::MessageLoop::current()->Run();
  70   return result;
  71 }
  72
  73 void RunOnThread(base::SingleThreadTaskRunner* task_runner,
  74                  const tracked_objects::Location& location,
  75                  const base::Closure& task) {
  76   task_runner->PostTaskAndReply(
  77       location, task,
  78       base::Bind(base::IgnoreResult(
  79           base::Bind(&base::MessageLoopProxy::PostTask,
  80                      base::MessageLoopProxy::current(),
  81                      FROM_HERE, base::Bind(&Quit)))));
  82   base::MessageLoop::current()->Run();
  83 }
  84
  85 void EnsureRunningOn(base::SingleThreadTaskRunner* runner) {
  86   EXPECT_TRUE(runner->RunsTasksOnCurrentThread());
  87 }
  88
  89 void VerifySameTaskRunner(
  90     base::SingleThreadTaskRunner* runner1,
  91     base::SingleThreadTaskRunner* runner2) {
  92   ASSERT_TRUE(runner1 != NULL);
  93   ASSERT_TRUE(runner2 != NULL);
  94   runner1->PostTask(FROM_HERE,
  95                     base::Bind(&EnsureRunningOn, make_scoped_refptr(runner2)));
  96 }
  97
  98 void OnCreateSnapshotFileAndVerifyData(
  99     const std::string& expected_data,
 100     const CannedSyncableFileSystem::StatusCallback& callback,
 101     base::PlatformFileError result,
 102     const base::PlatformFileInfo& file_info,
 103     const base::FilePath& platform_path,
 104     const scoped_refptr<webkit_blob::ShareableFileReference>& /* file_ref */) {
 105   if (result != base::PLATFORM_FILE_OK) {
 106     callback.Run(result);
 107     return;
 108   }
 109   EXPECT_EQ(expected_data.size(), static_cast<size_t>(file_info.size));
 110   std::string data;
 111   const bool read_status = base::ReadFileToString(platform_path, &data);
 112   EXPECT_TRUE(read_status);
 113   EXPECT_EQ(expected_data, data);
 114   callback.Run(result);
 115 }
 116
 117 void OnCreateSnapshotFile(
 118     base::PlatformFileInfo* file_info_out,
 119     base::FilePath* platform_path_out,
 120     const CannedSyncableFileSystem::StatusCallback& callback,
 121     base::PlatformFileError result,
 122     const base::PlatformFileInfo& file_info,
 123     const base::FilePath& platform_path,
 124     const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref) {
 125   DCHECK(!file_ref.get());
 126   DCHECK(file_info_out);
 127   DCHECK(platform_path_out);
 128   *file_info_out = file_info;
 129   *platform_path_out = platform_path;
 130   callback.Run(result);
 131 }
 132
 133 void OnReadDirectory(
 134     CannedSyncableFileSystem::FileEntryList* entries_out,
 135     const CannedSyncableFileSystem::StatusCallback& callback,
 136     base::PlatformFileError error,
 137     const fileapi::FileSystemOperation::FileEntryList& entries,
 138     bool has_more) {
 139   DCHECK(entries_out);
 140   entries_out->reserve(entries_out->size() + entries.size());
 141   std::copy(entries.begin(), entries.end(), std::back_inserter(*entries_out));
 142
 143   if (!has_more)
 144     callback.Run(error);
 145 }
 146
 147 class WriteHelper {
 148  public:
 149   WriteHelper() : bytes_written_(0) {}
 150   WriteHelper(MockBlobURLRequestContext* request_context,
 151               const std::string& blob_data)
 152       : bytes_written_(0),
 153         request_context_(request_context),
 154         blob_data_(new ScopedTextBlob(*request_context,
 155                                       base::GenerateGUID(),
 156                                       blob_data)) {
 157   }
 158
 159   ~WriteHelper() {
 160     if (request_context_) {
 161       base::MessageLoop::current()->DeleteSoon(FROM_HERE,
 162                                                request_context_.release());
 163     }
 164   }
 165
 166   ScopedTextBlob* scoped_text_blob() const { return blob_data_.get(); }
 167
 168   void DidWrite(const base::Callback<void(int64 result)>& completion_callback,
 169                 PlatformFileError error, int64 bytes, bool complete) {
 170     if (error == base::PLATFORM_FILE_OK) {
 171       bytes_written_ += bytes;
 172       if (!complete)
 173         return;
 174     }
 175     completion_callback.Run(error == base::PLATFORM_FILE_OK
 176                             ? bytes_written_ : static_cast<int64>(error));
 177   }
 178
 179  private:
 180   int64 bytes_written_;
 181   scoped_ptr<MockBlobURLRequestContext> request_context_;
 182   scoped_ptr<ScopedTextBlob> blob_data_;
 183
 184   DISALLOW_COPY_AND_ASSIGN(WriteHelper);
 185 };
 186
 187 void DidGetUsageAndQuota(const quota::StatusCallback& callback,
 188                          int64* usage_out, int64* quota_out,
 189                          quota::QuotaStatusCode status,
 190                          int64 usage, int64 quota) {
 191   *usage_out = usage;
 192   *quota_out = quota;
 193   callback.Run(status);
 194 }
 195
 196 void EnsureLastTaskRuns(base::SingleThreadTaskRunner* runner) {
 197   base::RunLoop run_loop;
 198   runner->PostTaskAndReply(
 199       FROM_HERE, base::Bind(&base::DoNothing), run_loop.QuitClosure());
 200   run_loop.Run();
 201 }
 202
 203 }  // namespace
 204
 205 CannedSyncableFileSystem::CannedSyncableFileSystem(
 206     const GURL& origin,
 207     base::SingleThreadTaskRunner* io_task_runner,
 208     base::SingleThreadTaskRunner* file_task_runner)
 209     : origin_(origin),
 210       type_(fileapi::kFileSystemTypeSyncable),
 211       result_(base::PLATFORM_FILE_OK),
 212       sync_status_(sync_file_system::SYNC_STATUS_OK),
 213       io_task_runner_(io_task_runner),
 214       file_task_runner_(file_task_runner),
 215       is_filesystem_set_up_(false),
 216       is_filesystem_opened_(false),
 217       sync_status_observers_(new ObserverList) {
 218 }
 219
 220 CannedSyncableFileSystem::~CannedSyncableFileSystem() {}
 221
 222 void CannedSyncableFileSystem::SetUp() {
 223   ASSERT_FALSE(is_filesystem_set_up_);
 224   ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
 225
 226   scoped_refptr<quota::SpecialStoragePolicy> storage_policy =
 227       new quota::MockSpecialStoragePolicy();
 228
 229   quota_manager_ = new QuotaManager(false /* is_incognito */,
 230                                     data_dir_.path(),
 231                                     io_task_runner_.get(),
 232                                     base::MessageLoopProxy::current().get(),
 233                                     storage_policy.get());
 234
 235   std::vector<std::string> additional_allowed_schemes;
 236   additional_allowed_schemes.push_back(origin_.scheme());
 237   fileapi::FileSystemOptions options(
 238       fileapi::FileSystemOptions::PROFILE_MODE_NORMAL,
 239       additional_allowed_schemes);
 240
 241   ScopedVector<fileapi::FileSystemBackend> additional_backends;
 242   additional_backends.push_back(SyncFileSystemBackend::CreateForTesting());
 243
 244   file_system_context_ = new FileSystemContext(
 245       io_task_runner_.get(),
 246       file_task_runner_.get(),
 247       fileapi::ExternalMountPoints::CreateRefCounted().get(),
 248       storage_policy.get(),
 249       quota_manager_->proxy(),
 250       additional_backends.Pass(),
 251       data_dir_.path(), options);
 252
 253   is_filesystem_set_up_ = true;
 254 }
 255
 256 void CannedSyncableFileSystem::TearDown() {
 257   quota_manager_ = NULL;
 258   file_system_context_ = NULL;
 259
 260   // Make sure we give some more time to finish tasks on other threads.
 261   EnsureLastTaskRuns(io_task_runner_.get());
 262   EnsureLastTaskRuns(file_task_runner_.get());
 263 }
 264
 265 FileSystemURL CannedSyncableFileSystem::URL(const std::string& path) const {
 266   EXPECT_TRUE(is_filesystem_set_up_);
 267   EXPECT_FALSE(root_url_.is_empty());
 268
 269   GURL url(root_url_.spec() + path);
 270   return file_system_context_->CrackURL(url);
 271 }
 272
 273 PlatformFileError CannedSyncableFileSystem::OpenFileSystem() {
 274   EXPECT_TRUE(is_filesystem_set_up_);
 275
 276   io_task_runner_->PostTask(
 277       FROM_HERE,
 278       base::Bind(&CannedSyncableFileSystem::DoOpenFileSystem,
 279                  base::Unretained(this),
 280                  base::Bind(&CannedSyncableFileSystem::DidOpenFileSystem,
 281                             base::Unretained(this),
 282                             base::MessageLoopProxy::current())));
 283   base::MessageLoop::current()->Run();
 284
 285   if (backend()->sync_context()) {
 286     // Register 'this' as a sync status observer.
 287     RunOnThread(
 288         io_task_runner_.get(),
 289         FROM_HERE,
 290         base::Bind(&CannedSyncableFileSystem::InitializeSyncStatusObserver,
 291                    base::Unretained(this)));
 292   }
 293   return result_;
 294 }
 295
 296 void CannedSyncableFileSystem::AddSyncStatusObserver(
 297     LocalFileSyncStatus::Observer* observer) {
 298   sync_status_observers_->AddObserver(observer);
 299 }
 300
 301 void CannedSyncableFileSystem::RemoveSyncStatusObserver(
 302     LocalFileSyncStatus::Observer* observer) {
 303   sync_status_observers_->RemoveObserver(observer);
 304 }
 305
 306 SyncStatusCode CannedSyncableFileSystem::MaybeInitializeFileSystemContext(
 307     LocalFileSyncContext* sync_context) {
 308   DCHECK(sync_context);
 309   sync_status_ = sync_file_system::SYNC_STATUS_UNKNOWN;
 310   VerifySameTaskRunner(io_task_runner_.get(),
 311                        sync_context->io_task_runner_.get());
 312   sync_context->MaybeInitializeFileSystemContext(
 313       origin_,
 314       file_system_context_.get(),
 315       base::Bind(&CannedSyncableFileSystem::DidInitializeFileSystemContext,
 316                  base::Unretained(this)));
 317   base::MessageLoop::current()->Run();
 318   return sync_status_;
 319 }
 320
 321 PlatformFileError CannedSyncableFileSystem::CreateDirectory(
 322     const FileSystemURL& url) {
 323   return RunOnThread<PlatformFileError>(
 324       io_task_runner_.get(),
 325       FROM_HERE,
 326       base::Bind(&CannedSyncableFileSystem::DoCreateDirectory,
 327                  base::Unretained(this),
 328                  url));
 329 }
 330
 331 PlatformFileError CannedSyncableFileSystem::CreateFile(
 332     const FileSystemURL& url) {
 333   return RunOnThread<PlatformFileError>(
 334       io_task_runner_.get(),
 335       FROM_HERE,
 336       base::Bind(&CannedSyncableFileSystem::DoCreateFile,
 337                  base::Unretained(this),
 338                  url));
 339 }
 340
 341 PlatformFileError CannedSyncableFileSystem::Copy(
 342     const FileSystemURL& src_url, const FileSystemURL& dest_url) {
 343   return RunOnThread<PlatformFileError>(
 344       io_task_runner_.get(),
 345       FROM_HERE,
 346       base::Bind(&CannedSyncableFileSystem::DoCopy,
 347                  base::Unretained(this),
 348                  src_url,
 349                  dest_url));
 350 }
 351
 352 PlatformFileError CannedSyncableFileSystem::Move(
 353     const FileSystemURL& src_url, const FileSystemURL& dest_url) {
 354   return RunOnThread<PlatformFileError>(
 355       io_task_runner_.get(),
 356       FROM_HERE,
 357       base::Bind(&CannedSyncableFileSystem::DoMove,
 358                  base::Unretained(this),
 359                  src_url,
 360                  dest_url));
 361 }
 362
 363 PlatformFileError CannedSyncableFileSystem::TruncateFile(
 364     const FileSystemURL& url, int64 size) {
 365   return RunOnThread<PlatformFileError>(
 366       io_task_runner_.get(),
 367       FROM_HERE,
 368       base::Bind(&CannedSyncableFileSystem::DoTruncateFile,
 369                  base::Unretained(this),
 370                  url,
 371                  size));
 372 }
 373
 374 PlatformFileError CannedSyncableFileSystem::TouchFile(
 375     const FileSystemURL& url,
 376     const base::Time& last_access_time,
 377     const base::Time& last_modified_time) {
 378   return RunOnThread<PlatformFileError>(
 379       io_task_runner_.get(),
 380       FROM_HERE,
 381       base::Bind(&CannedSyncableFileSystem::DoTouchFile,
 382                  base::Unretained(this),
 383                  url,
 384                  last_access_time,
 385                  last_modified_time));
 386 }
 387
 388 PlatformFileError CannedSyncableFileSystem::Remove(
 389     const FileSystemURL& url, bool recursive) {
 390   return RunOnThread<PlatformFileError>(
 391       io_task_runner_.get(),
 392       FROM_HERE,
 393       base::Bind(&CannedSyncableFileSystem::DoRemove,
 394                  base::Unretained(this),
 395                  url,
 396                  recursive));
 397 }
 398
 399 PlatformFileError CannedSyncableFileSystem::FileExists(
 400     const FileSystemURL& url) {
 401   return RunOnThread<PlatformFileError>(
 402       io_task_runner_.get(),
 403       FROM_HERE,
 404       base::Bind(&CannedSyncableFileSystem::DoFileExists,
 405                  base::Unretained(this),
 406                  url));
 407 }
 408
 409 PlatformFileError CannedSyncableFileSystem::DirectoryExists(
 410     const FileSystemURL& url) {
 411   return RunOnThread<PlatformFileError>(
 412       io_task_runner_.get(),
 413       FROM_HERE,
 414       base::Bind(&CannedSyncableFileSystem::DoDirectoryExists,
 415                  base::Unretained(this),
 416                  url));
 417 }
 418
 419 PlatformFileError CannedSyncableFileSystem::VerifyFile(
 420     const FileSystemURL& url,
 421     const std::string& expected_data) {
 422   return RunOnThread<PlatformFileError>(
 423       io_task_runner_.get(),
 424       FROM_HERE,
 425       base::Bind(&CannedSyncableFileSystem::DoVerifyFile,
 426                  base::Unretained(this),
 427                  url,
 428                  expected_data));
 429 }
 430
 431 PlatformFileError CannedSyncableFileSystem::GetMetadataAndPlatformPath(
 432     const FileSystemURL& url,
 433     base::PlatformFileInfo* info,
 434     base::FilePath* platform_path) {
 435   return RunOnThread<PlatformFileError>(
 436       io_task_runner_.get(),
 437       FROM_HERE,
 438       base::Bind(&CannedSyncableFileSystem::DoGetMetadataAndPlatformPath,
 439                  base::Unretained(this),
 440                  url,
 441                  info,
 442                  platform_path));
 443 }
 444
 445 PlatformFileError CannedSyncableFileSystem::ReadDirectory(
 446     const fileapi::FileSystemURL& url,
 447     FileEntryList* entries) {
 448   return RunOnThread<PlatformFileError>(
 449       io_task_runner_.get(),
 450       FROM_HERE,
 451       base::Bind(&CannedSyncableFileSystem::DoReadDirectory,
 452           base::Unretained(this),
 453           url,
 454           entries));
 455 }
 456
 457 int64 CannedSyncableFileSystem::Write(
 458     net::URLRequestContext* url_request_context,
 459     const FileSystemURL& url,
 460     scoped_ptr<webkit_blob::BlobDataHandle> blob_data_handle) {
 461   return RunOnThread<int64>(io_task_runner_.get(),
 462                             FROM_HERE,
 463                             base::Bind(&CannedSyncableFileSystem::DoWrite,
 464                                        base::Unretained(this),
 465                                        url_request_context,
 466                                        url,
 467                                        base::Passed(&blob_data_handle)));
 468 }
 469
 470 int64 CannedSyncableFileSystem::WriteString(
 471     const FileSystemURL& url, const std::string& data) {
 472   return RunOnThread<int64>(io_task_runner_.get(),
 473                             FROM_HERE,
 474                             base::Bind(&CannedSyncableFileSystem::DoWriteString,
 475                                        base::Unretained(this),
 476                                        url,
 477                                        data));
 478 }
 479
 480 PlatformFileError CannedSyncableFileSystem::DeleteFileSystem() {
 481   EXPECT_TRUE(is_filesystem_set_up_);
 482   return RunOnThread<PlatformFileError>(
 483       io_task_runner_.get(),
 484       FROM_HERE,
 485       base::Bind(&FileSystemContext::DeleteFileSystem,
 486                  file_system_context_,
 487                  origin_,
 488                  type_));
 489 }
 490
 491 quota::QuotaStatusCode CannedSyncableFileSystem::GetUsageAndQuota(
 492     int64* usage, int64* quota) {
 493   return RunOnThread<quota::QuotaStatusCode>(
 494       io_task_runner_.get(),
 495       FROM_HERE,
 496       base::Bind(&CannedSyncableFileSystem::DoGetUsageAndQuota,
 497                  base::Unretained(this),
 498                  usage,
 499                  quota));
 500 }
 501
 502 void CannedSyncableFileSystem::GetChangedURLsInTracker(
 503     FileSystemURLSet* urls) {
 504   RunOnThread(
 505       file_task_runner_.get(),
 506       FROM_HERE,
 507       base::Bind(&LocalFileChangeTracker::GetAllChangedURLs,
 508                  base::Unretained(backend()->change_tracker()),
 509                  urls));
 510 }
 511
 512 void CannedSyncableFileSystem::ClearChangeForURLInTracker(
 513     const FileSystemURL& url) {
 514   RunOnThread(
 515       file_task_runner_.get(),
 516       FROM_HERE,
 517       base::Bind(&LocalFileChangeTracker::ClearChangesForURL,
 518                  base::Unretained(backend()->change_tracker()),
 519                  url));
 520 }
 521
 522 void CannedSyncableFileSystem::GetChangesForURLInTracker(
 523     const FileSystemURL& url,
 524     FileChangeList* changes) {
 525   RunOnThread(
 526       file_task_runner_.get(),
 527       FROM_HERE,
 528       base::Bind(&LocalFileChangeTracker::GetChangesForURL,
 529                  base::Unretained(backend()->change_tracker()),
 530                  url, changes));
 531 }
 532
 533 SyncFileSystemBackend* CannedSyncableFileSystem::backend() {
 534   return SyncFileSystemBackend::GetBackend(file_system_context_);
 535 }
 536
 537 FileSystemOperationRunner* CannedSyncableFileSystem::operation_runner() {
 538   return file_system_context_->operation_runner();
 539 }
 540
 541 void CannedSyncableFileSystem::OnSyncEnabled(const FileSystemURL& url) {
 542   sync_status_observers_->Notify(&LocalFileSyncStatus::Observer::OnSyncEnabled,
 543                                  url);
 544 }
 545
 546 void CannedSyncableFileSystem::OnWriteEnabled(const FileSystemURL& url) {
 547   sync_status_observers_->Notify(&LocalFileSyncStatus::Observer::OnWriteEnabled,
 548                                  url);
 549 }
 550
 551 void CannedSyncableFileSystem::DoOpenFileSystem(
 552     const OpenFileSystemCallback& callback) {
 553   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 554   EXPECT_FALSE(is_filesystem_opened_);
 555   file_system_context_->OpenFileSystem(
 556       origin_, type_,
 557       fileapi::OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
 558       callback);
 559 }
 560
 561 void CannedSyncableFileSystem::DoCreateDirectory(
 562     const FileSystemURL& url,
 563     const StatusCallback& callback) {
 564   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 565   EXPECT_TRUE(is_filesystem_opened_);
 566   operation_runner()->CreateDirectory(
 567       url, false /* exclusive */, false /* recursive */, callback);
 568 }
 569
 570 void CannedSyncableFileSystem::DoCreateFile(
 571     const FileSystemURL& url,
 572     const StatusCallback& callback) {
 573   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 574   EXPECT_TRUE(is_filesystem_opened_);
 575   operation_runner()->CreateFile(url, false /* exclusive */, callback);
 576 }
 577
 578 void CannedSyncableFileSystem::DoCopy(
 579     const FileSystemURL& src_url,
 580     const FileSystemURL& dest_url,
 581     const StatusCallback& callback) {
 582   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 583   EXPECT_TRUE(is_filesystem_opened_);
 584   operation_runner()->Copy(
 585       src_url, dest_url,
 586       fileapi::FileSystemOperation::OPTION_NONE,
 587       fileapi::FileSystemOperationRunner::CopyProgressCallback(), callback);
 588 }
 589
 590 void CannedSyncableFileSystem::DoMove(
 591     const FileSystemURL& src_url,
 592     const FileSystemURL& dest_url,
 593     const StatusCallback& callback) {
 594   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 595   EXPECT_TRUE(is_filesystem_opened_);
 596   operation_runner()->Move(
 597       src_url, dest_url, fileapi::FileSystemOperation::OPTION_NONE, callback);
 598 }
 599
 600 void CannedSyncableFileSystem::DoTruncateFile(
 601     const FileSystemURL& url, int64 size,
 602     const StatusCallback& callback) {
 603   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 604   EXPECT_TRUE(is_filesystem_opened_);
 605   operation_runner()->Truncate(url, size, callback);
 606 }
 607
 608 void CannedSyncableFileSystem::DoTouchFile(
 609     const FileSystemURL& url,
 610     const base::Time& last_access_time,
 611     const base::Time& last_modified_time,
 612     const StatusCallback& callback) {
 613   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 614   EXPECT_TRUE(is_filesystem_opened_);
 615   operation_runner()->TouchFile(url, last_access_time,
 616                                 last_modified_time, callback);
 617 }
 618
 619 void CannedSyncableFileSystem::DoRemove(
 620     const FileSystemURL& url, bool recursive,
 621     const StatusCallback& callback) {
 622   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 623   EXPECT_TRUE(is_filesystem_opened_);
 624   operation_runner()->Remove(url, recursive, callback);
 625 }
 626
 627 void CannedSyncableFileSystem::DoFileExists(
 628     const FileSystemURL& url, const StatusCallback& callback) {
 629   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 630   EXPECT_TRUE(is_filesystem_opened_);
 631   operation_runner()->FileExists(url, callback);
 632 }
 633
 634 void CannedSyncableFileSystem::DoDirectoryExists(
 635     const FileSystemURL& url, const StatusCallback& callback) {
 636   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 637   EXPECT_TRUE(is_filesystem_opened_);
 638   operation_runner()->DirectoryExists(url, callback);
 639 }
 640
 641 void CannedSyncableFileSystem::DoVerifyFile(
 642     const FileSystemURL& url,
 643     const std::string& expected_data,
 644     const StatusCallback& callback) {
 645   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 646   EXPECT_TRUE(is_filesystem_opened_);
 647   operation_runner()->CreateSnapshotFile(
 648       url,
 649       base::Bind(&OnCreateSnapshotFileAndVerifyData, expected_data, callback));
 650 }
 651
 652 void CannedSyncableFileSystem::DoGetMetadataAndPlatformPath(
 653     const FileSystemURL& url,
 654     base::PlatformFileInfo* info,
 655     base::FilePath* platform_path,
 656     const StatusCallback& callback) {
 657   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 658   EXPECT_TRUE(is_filesystem_opened_);
 659   operation_runner()->CreateSnapshotFile(
 660       url, base::Bind(&OnCreateSnapshotFile, info, platform_path, callback));
 661 }
 662
 663 void CannedSyncableFileSystem::DoReadDirectory(
 664     const FileSystemURL& url,
 665     FileEntryList* entries,
 666     const StatusCallback& callback) {
 667   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 668   EXPECT_TRUE(is_filesystem_opened_);
 669   operation_runner()->ReadDirectory(
 670       url, base::Bind(&OnReadDirectory, entries, callback));
 671 }
 672
 673 void CannedSyncableFileSystem::DoWrite(
 674     net::URLRequestContext* url_request_context,
 675     const FileSystemURL& url,
 676     scoped_ptr<webkit_blob::BlobDataHandle> blob_data_handle,
 677     const WriteCallback& callback) {
 678   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 679   EXPECT_TRUE(is_filesystem_opened_);
 680   WriteHelper* helper = new WriteHelper;
 681   operation_runner()->Write(url_request_context, url,
 682                             blob_data_handle.Pass(), 0,
 683                             base::Bind(&WriteHelper::DidWrite,
 684                                        base::Owned(helper), callback));
 685 }
 686
 687 void CannedSyncableFileSystem::DoWriteString(
 688     const FileSystemURL& url,
 689     const std::string& data,
 690     const WriteCallback& callback) {
 691   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 692   EXPECT_TRUE(is_filesystem_opened_);
 693   MockBlobURLRequestContext* url_request_context(
 694       new MockBlobURLRequestContext(file_system_context_.get()));
 695   WriteHelper* helper = new WriteHelper(url_request_context, data);
 696   operation_runner()->Write(url_request_context, url,
 697                             helper->scoped_text_blob()->GetBlobDataHandle(), 0,
 698                             base::Bind(&WriteHelper::DidWrite,
 699                                        base::Owned(helper), callback));
 700 }
 701
 702 void CannedSyncableFileSystem::DoGetUsageAndQuota(
 703     int64* usage,
 704     int64* quota,
 705     const quota::StatusCallback& callback) {
 706   EXPECT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 707   EXPECT_TRUE(is_filesystem_opened_);
 708   quota_manager_->GetUsageAndQuota(
 709       origin_, storage_type(),
 710       base::Bind(&DidGetUsageAndQuota, callback, usage, quota));
 711 }
 712
 713 void CannedSyncableFileSystem::DidOpenFileSystem(
 714     base::SingleThreadTaskRunner* original_task_runner,
 715     const GURL& root,
 716     const std::string& name,
 717     PlatformFileError result) {
 718   if (io_task_runner_->RunsTasksOnCurrentThread()) {
 719     EXPECT_FALSE(is_filesystem_opened_);
 720     is_filesystem_opened_ = true;
 721   }
 722   if (!original_task_runner->RunsTasksOnCurrentThread()) {
 723     DCHECK(io_task_runner_->RunsTasksOnCurrentThread());
 724     original_task_runner->PostTask(
 725         FROM_HERE,
 726         base::Bind(&CannedSyncableFileSystem::DidOpenFileSystem,
 727                    base::Unretained(this),
 728                    make_scoped_refptr(original_task_runner),
 729                    root, name, result));
 730     return;
 731   }
 732   result_ = result;
 733   root_url_ = root;
 734   base::MessageLoop::current()->Quit();
 735 }
 736
 737 void CannedSyncableFileSystem::DidInitializeFileSystemContext(
 738     SyncStatusCode status) {
 739   sync_status_ = status;
 740   base::MessageLoop::current()->Quit();
 741 }
 742
 743 void CannedSyncableFileSystem::InitializeSyncStatusObserver() {
 744   ASSERT_TRUE(io_task_runner_->RunsTasksOnCurrentThread());
 745   backend()->sync_context()->sync_status()->AddObserver(this);
 746 }
 747
 748 }  // namespace sync_file_system