a92999b7b9b3fc9b84dea555d51c8b2b4e8967a9
[platform/framework/web/crosswalk.git] / src / chrome / browser / chromeos / drive / sync_client_unittest.cc
1 // Copyright (c) 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 "chrome/browser/chromeos/drive/sync_client.h"
6
7 #include "base/files/file_path.h"
8 #include "base/files/file_util.h"
9 #include "base/files/scoped_temp_dir.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "base/prefs/testing_pref_service.h"
12 #include "base/run_loop.h"
13 #include "base/test/test_timeouts.h"
14 #include "chrome/browser/chromeos/drive/change_list_loader.h"
15 #include "chrome/browser/chromeos/drive/drive.pb.h"
16 #include "chrome/browser/chromeos/drive/fake_free_disk_space_getter.h"
17 #include "chrome/browser/chromeos/drive/file_cache.h"
18 #include "chrome/browser/chromeos/drive/file_change.h"
19 #include "chrome/browser/chromeos/drive/file_system/move_operation.h"
20 #include "chrome/browser/chromeos/drive/file_system/operation_delegate.h"
21 #include "chrome/browser/chromeos/drive/file_system/remove_operation.h"
22 #include "chrome/browser/chromeos/drive/file_system_util.h"
23 #include "chrome/browser/chromeos/drive/job_scheduler.h"
24 #include "chrome/browser/chromeos/drive/resource_entry_conversion.h"
25 #include "chrome/browser/chromeos/drive/resource_metadata.h"
26 #include "chrome/browser/chromeos/drive/test_util.h"
27 #include "chrome/browser/drive/event_logger.h"
28 #include "chrome/browser/drive/fake_drive_service.h"
29 #include "content/public/test/test_browser_thread_bundle.h"
30 #include "google_apis/drive/drive_api_parser.h"
31 #include "google_apis/drive/test_util.h"
32 #include "testing/gtest/include/gtest/gtest.h"
33
34 namespace drive {
35 namespace internal {
36
37 namespace {
38
39 // The content of files initially stored in the cache.
40 const char kLocalContent[] = "Hello!";
41
42 // The content of files stored in the service.
43 const char kRemoteContent[] = "World!";
44
45 // SyncClientTestDriveService will return GDATA_CANCELLED when a request is
46 // made with the specified resource ID.
47 class SyncClientTestDriveService : public ::drive::FakeDriveService {
48  public:
49   SyncClientTestDriveService() : download_file_count_(0) {}
50
51   // FakeDriveService override:
52   virtual google_apis::CancelCallback DownloadFile(
53       const base::FilePath& local_cache_path,
54       const std::string& resource_id,
55       const google_apis::DownloadActionCallback& download_action_callback,
56       const google_apis::GetContentCallback& get_content_callback,
57       const google_apis::ProgressCallback& progress_callback) override {
58     ++download_file_count_;
59     if (resource_id == resource_id_to_be_cancelled_) {
60       base::MessageLoopProxy::current()->PostTask(
61           FROM_HERE,
62           base::Bind(download_action_callback,
63                      google_apis::GDATA_CANCELLED,
64                      base::FilePath()));
65       return google_apis::CancelCallback();
66     }
67     if (resource_id == resource_id_to_be_paused_) {
68       paused_action_ = base::Bind(download_action_callback,
69                                   google_apis::GDATA_OTHER_ERROR,
70                                   base::FilePath());
71       return google_apis::CancelCallback();
72     }
73     return FakeDriveService::DownloadFile(local_cache_path,
74                                           resource_id,
75                                           download_action_callback,
76                                           get_content_callback,
77                                           progress_callback);
78   }
79
80   int download_file_count() const { return download_file_count_; }
81
82   void set_resource_id_to_be_cancelled(const std::string& resource_id) {
83     resource_id_to_be_cancelled_ = resource_id;
84   }
85
86   void set_resource_id_to_be_paused(const std::string& resource_id) {
87     resource_id_to_be_paused_ = resource_id;
88   }
89
90   const base::Closure& paused_action() const { return paused_action_; }
91
92  private:
93   int download_file_count_;
94   std::string resource_id_to_be_cancelled_;
95   std::string resource_id_to_be_paused_;
96   base::Closure paused_action_;
97 };
98
99 }  // namespace
100
101 class SyncClientTest : public testing::Test {
102  public:
103   virtual void SetUp() override {
104     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
105
106     pref_service_.reset(new TestingPrefServiceSimple);
107     test_util::RegisterDrivePrefs(pref_service_->registry());
108
109     fake_network_change_notifier_.reset(
110         new test_util::FakeNetworkChangeNotifier);
111
112     logger_.reset(new EventLogger);
113
114     drive_service_.reset(new SyncClientTestDriveService);
115
116     scheduler_.reset(new JobScheduler(pref_service_.get(),
117                                       logger_.get(),
118                                       drive_service_.get(),
119                                       base::MessageLoopProxy::current().get()));
120
121     metadata_storage_.reset(new ResourceMetadataStorage(
122         temp_dir_.path(), base::MessageLoopProxy::current().get()));
123     ASSERT_TRUE(metadata_storage_->Initialize());
124
125     cache_.reset(new FileCache(metadata_storage_.get(),
126                                temp_dir_.path(),
127                                base::MessageLoopProxy::current().get(),
128                                NULL /* free_disk_space_getter */));
129     ASSERT_TRUE(cache_->Initialize());
130
131     metadata_.reset(new internal::ResourceMetadata(
132         metadata_storage_.get(), cache_.get(),
133         base::MessageLoopProxy::current()));
134     ASSERT_EQ(FILE_ERROR_OK, metadata_->Initialize());
135
136     about_resource_loader_.reset(new AboutResourceLoader(scheduler_.get()));
137     loader_controller_.reset(new LoaderController);
138     change_list_loader_.reset(new ChangeListLoader(
139         logger_.get(),
140         base::MessageLoopProxy::current().get(),
141         metadata_.get(),
142         scheduler_.get(),
143         about_resource_loader_.get(),
144         loader_controller_.get()));
145     ASSERT_NO_FATAL_FAILURE(SetUpTestData());
146
147     sync_client_.reset(new SyncClient(base::MessageLoopProxy::current().get(),
148                                       &delegate_,
149                                       scheduler_.get(),
150                                       metadata_.get(),
151                                       cache_.get(),
152                                       loader_controller_.get(),
153                                       temp_dir_.path()));
154
155     // Disable delaying so that DoSyncLoop() starts immediately.
156     sync_client_->set_delay_for_testing(base::TimeDelta::FromSeconds(0));
157   }
158
159   // Adds a file to the service root and |resource_ids_|.
160   void AddFileEntry(const std::string& title) {
161     google_apis::GDataErrorCode error = google_apis::GDATA_FILE_ERROR;
162     scoped_ptr<google_apis::FileResource> entry;
163     drive_service_->AddNewFile(
164         "text/plain",
165         kRemoteContent,
166         drive_service_->GetRootResourceId(),
167         title,
168         false,  // shared_with_me
169         google_apis::test_util::CreateCopyResultCallback(&error, &entry));
170     base::RunLoop().RunUntilIdle();
171     ASSERT_EQ(google_apis::HTTP_CREATED, error);
172     ASSERT_TRUE(entry);
173     resource_ids_[title] = entry->file_id();
174   }
175
176   // Sets up data for tests.
177   void SetUpTestData() {
178     // Prepare a temp file.
179     base::FilePath temp_file;
180     EXPECT_TRUE(base::CreateTemporaryFileInDir(temp_dir_.path(), &temp_file));
181     ASSERT_TRUE(google_apis::test_util::WriteStringToFile(temp_file,
182                                                           kLocalContent));
183
184     // Add file entries to the service.
185     ASSERT_NO_FATAL_FAILURE(AddFileEntry("foo"));
186     ASSERT_NO_FATAL_FAILURE(AddFileEntry("bar"));
187     ASSERT_NO_FATAL_FAILURE(AddFileEntry("baz"));
188     ASSERT_NO_FATAL_FAILURE(AddFileEntry("fetched"));
189     ASSERT_NO_FATAL_FAILURE(AddFileEntry("dirty"));
190     ASSERT_NO_FATAL_FAILURE(AddFileEntry("removed"));
191     ASSERT_NO_FATAL_FAILURE(AddFileEntry("moved"));
192
193     // Load data from the service to the metadata.
194     FileError error = FILE_ERROR_FAILED;
195     change_list_loader_->LoadIfNeeded(
196         google_apis::test_util::CreateCopyResultCallback(&error));
197     base::RunLoop().RunUntilIdle();
198     EXPECT_EQ(FILE_ERROR_OK, error);
199
200     // Prepare 3 pinned-but-not-present files.
201     EXPECT_EQ(FILE_ERROR_OK, cache_->Pin(GetLocalId("foo")));
202     EXPECT_EQ(FILE_ERROR_OK, cache_->Pin(GetLocalId("bar")));
203     EXPECT_EQ(FILE_ERROR_OK, cache_->Pin(GetLocalId("baz")));
204
205     // Prepare a pinned-and-fetched file.
206     const std::string md5_fetched = "md5";
207     EXPECT_EQ(FILE_ERROR_OK,
208               cache_->Store(GetLocalId("fetched"), md5_fetched,
209                             temp_file, FileCache::FILE_OPERATION_COPY));
210     EXPECT_EQ(FILE_ERROR_OK, cache_->Pin(GetLocalId("fetched")));
211
212     // Prepare a pinned-and-fetched-and-dirty file.
213     EXPECT_EQ(FILE_ERROR_OK,
214               cache_->Store(GetLocalId("dirty"), std::string(),
215                             temp_file, FileCache::FILE_OPERATION_COPY));
216     EXPECT_EQ(FILE_ERROR_OK, cache_->Pin(GetLocalId("dirty")));
217
218     // Prepare a removed file.
219     file_system::RemoveOperation remove_operation(
220         base::MessageLoopProxy::current().get(), &delegate_, metadata_.get(),
221         cache_.get());
222     remove_operation.Remove(
223         util::GetDriveMyDriveRootPath().AppendASCII("removed"),
224         false,  // is_recursive
225         google_apis::test_util::CreateCopyResultCallback(&error));
226     base::RunLoop().RunUntilIdle();
227     EXPECT_EQ(FILE_ERROR_OK, error);
228
229     // Prepare a moved file.
230     file_system::MoveOperation move_operation(
231         base::MessageLoopProxy::current().get(), &delegate_, metadata_.get());
232     move_operation.Move(
233         util::GetDriveMyDriveRootPath().AppendASCII("moved"),
234         util::GetDriveMyDriveRootPath().AppendASCII("moved_new_title"),
235         google_apis::test_util::CreateCopyResultCallback(&error));
236     base::RunLoop().RunUntilIdle();
237     EXPECT_EQ(FILE_ERROR_OK, error);
238   }
239
240  protected:
241   std::string GetLocalId(const std::string& title) {
242     EXPECT_EQ(1U, resource_ids_.count(title));
243     std::string local_id;
244     EXPECT_EQ(FILE_ERROR_OK,
245               metadata_->GetIdByResourceId(resource_ids_[title], &local_id));
246     return local_id;
247   }
248
249   content::TestBrowserThreadBundle thread_bundle_;
250   base::ScopedTempDir temp_dir_;
251   scoped_ptr<TestingPrefServiceSimple> pref_service_;
252   scoped_ptr<test_util::FakeNetworkChangeNotifier>
253       fake_network_change_notifier_;
254   scoped_ptr<EventLogger> logger_;
255   scoped_ptr<SyncClientTestDriveService> drive_service_;
256   file_system::OperationDelegate delegate_;
257   scoped_ptr<JobScheduler> scheduler_;
258   scoped_ptr<ResourceMetadataStorage,
259              test_util::DestroyHelperForTests> metadata_storage_;
260   scoped_ptr<FileCache, test_util::DestroyHelperForTests> cache_;
261   scoped_ptr<ResourceMetadata, test_util::DestroyHelperForTests> metadata_;
262   scoped_ptr<AboutResourceLoader> about_resource_loader_;
263   scoped_ptr<LoaderController> loader_controller_;
264   scoped_ptr<ChangeListLoader> change_list_loader_;
265   scoped_ptr<SyncClient> sync_client_;
266
267   std::map<std::string, std::string> resource_ids_;  // Name-to-id map.
268 };
269
270 TEST_F(SyncClientTest, StartProcessingBacklog) {
271   sync_client_->StartProcessingBacklog();
272   base::RunLoop().RunUntilIdle();
273
274   ResourceEntry entry;
275   // Pinned files get downloaded.
276   EXPECT_EQ(FILE_ERROR_OK,
277             metadata_->GetResourceEntryById(GetLocalId("foo"), &entry));
278   EXPECT_TRUE(entry.file_specific_info().cache_state().is_present());
279
280   EXPECT_EQ(FILE_ERROR_OK,
281             metadata_->GetResourceEntryById(GetLocalId("bar"), &entry));
282   EXPECT_TRUE(entry.file_specific_info().cache_state().is_present());
283
284   EXPECT_EQ(FILE_ERROR_OK,
285             metadata_->GetResourceEntryById(GetLocalId("baz"), &entry));
286   EXPECT_TRUE(entry.file_specific_info().cache_state().is_present());
287
288   // Dirty file gets uploaded.
289   EXPECT_EQ(FILE_ERROR_OK,
290             metadata_->GetResourceEntryById(GetLocalId("dirty"), &entry));
291   EXPECT_FALSE(entry.file_specific_info().cache_state().is_dirty());
292
293   // Removed entry is not found.
294   google_apis::GDataErrorCode status = google_apis::GDATA_OTHER_ERROR;
295   scoped_ptr<google_apis::FileResource> server_entry;
296   drive_service_->GetFileResource(
297       resource_ids_["removed"],
298       google_apis::test_util::CreateCopyResultCallback(&status, &server_entry));
299   base::RunLoop().RunUntilIdle();
300   EXPECT_EQ(google_apis::HTTP_SUCCESS, status);
301   ASSERT_TRUE(server_entry);
302   EXPECT_TRUE(server_entry->labels().is_trashed());
303
304   // Moved entry was moved.
305   status = google_apis::GDATA_OTHER_ERROR;
306   drive_service_->GetFileResource(
307       resource_ids_["moved"],
308       google_apis::test_util::CreateCopyResultCallback(&status, &server_entry));
309   base::RunLoop().RunUntilIdle();
310   EXPECT_EQ(google_apis::HTTP_SUCCESS, status);
311   ASSERT_TRUE(server_entry);
312   EXPECT_EQ("moved_new_title", server_entry->title());
313 }
314
315 TEST_F(SyncClientTest, AddFetchTask) {
316   sync_client_->AddFetchTask(GetLocalId("foo"));
317   base::RunLoop().RunUntilIdle();
318
319   ResourceEntry entry;
320   EXPECT_EQ(FILE_ERROR_OK,
321             metadata_->GetResourceEntryById(GetLocalId("foo"), &entry));
322   EXPECT_TRUE(entry.file_specific_info().cache_state().is_present());
323 }
324
325 TEST_F(SyncClientTest, AddFetchTaskAndCancelled) {
326   // Trigger fetching of a file which results in cancellation.
327   drive_service_->set_resource_id_to_be_cancelled(resource_ids_["foo"]);
328   sync_client_->AddFetchTask(GetLocalId("foo"));
329   base::RunLoop().RunUntilIdle();
330
331   // The file should be unpinned if the user wants the download to be cancelled.
332   ResourceEntry entry;
333   EXPECT_EQ(FILE_ERROR_OK,
334             metadata_->GetResourceEntryById(GetLocalId("foo"), &entry));
335   EXPECT_FALSE(entry.file_specific_info().cache_state().is_pinned());
336 }
337
338 TEST_F(SyncClientTest, RemoveFetchTask) {
339   sync_client_->AddFetchTask(GetLocalId("foo"));
340   sync_client_->AddFetchTask(GetLocalId("bar"));
341   sync_client_->AddFetchTask(GetLocalId("baz"));
342
343   sync_client_->RemoveFetchTask(GetLocalId("foo"));
344   sync_client_->RemoveFetchTask(GetLocalId("baz"));
345   base::RunLoop().RunUntilIdle();
346
347   // Only "bar" should be fetched.
348   ResourceEntry entry;
349   EXPECT_EQ(FILE_ERROR_OK,
350             metadata_->GetResourceEntryById(GetLocalId("foo"), &entry));
351   EXPECT_FALSE(entry.file_specific_info().cache_state().is_present());
352
353   EXPECT_EQ(FILE_ERROR_OK,
354             metadata_->GetResourceEntryById(GetLocalId("bar"), &entry));
355   EXPECT_TRUE(entry.file_specific_info().cache_state().is_present());
356
357   EXPECT_EQ(FILE_ERROR_OK,
358             metadata_->GetResourceEntryById(GetLocalId("baz"), &entry));
359   EXPECT_FALSE(entry.file_specific_info().cache_state().is_present());
360
361 }
362
363 TEST_F(SyncClientTest, ExistingPinnedFiles) {
364   // Start checking the existing pinned files. This will collect the resource
365   // IDs of pinned files, with stale local cache files.
366   sync_client_->StartCheckingExistingPinnedFiles();
367   base::RunLoop().RunUntilIdle();
368
369   // "fetched" and "dirty" are the existing pinned files.
370   // The non-dirty one should be synced, but the dirty one should not.
371   base::FilePath cache_file;
372   std::string content;
373   EXPECT_EQ(FILE_ERROR_OK, cache_->GetFile(GetLocalId("fetched"), &cache_file));
374   EXPECT_TRUE(base::ReadFileToString(cache_file, &content));
375   EXPECT_EQ(kRemoteContent, content);
376   content.clear();
377
378   EXPECT_EQ(FILE_ERROR_OK, cache_->GetFile(GetLocalId("dirty"), &cache_file));
379   EXPECT_TRUE(base::ReadFileToString(cache_file, &content));
380   EXPECT_EQ(kLocalContent, content);
381 }
382
383 TEST_F(SyncClientTest, RetryOnDisconnection) {
384   // Let the service go down.
385   drive_service_->set_offline(true);
386   // Change the network connection state after some delay, to test that
387   // FILE_ERROR_NO_CONNECTION is handled by SyncClient correctly.
388   // Without this delay, JobScheduler will keep the jobs unrun and SyncClient
389   // will receive no error.
390   base::MessageLoopProxy::current()->PostDelayedTask(
391       FROM_HERE,
392       base::Bind(&test_util::FakeNetworkChangeNotifier::SetConnectionType,
393                  base::Unretained(fake_network_change_notifier_.get()),
394                  net::NetworkChangeNotifier::CONNECTION_NONE),
395       TestTimeouts::tiny_timeout());
396
397   // Try fetch and upload.
398   sync_client_->AddFetchTask(GetLocalId("foo"));
399   sync_client_->AddUpdateTask(ClientContext(USER_INITIATED),
400                               GetLocalId("dirty"));
401   base::RunLoop().RunUntilIdle();
402
403   // Not yet fetched nor uploaded.
404   ResourceEntry entry;
405   EXPECT_EQ(FILE_ERROR_OK,
406             metadata_->GetResourceEntryById(GetLocalId("foo"), &entry));
407   EXPECT_FALSE(entry.file_specific_info().cache_state().is_present());
408   EXPECT_EQ(FILE_ERROR_OK,
409             metadata_->GetResourceEntryById(GetLocalId("dirty"), &entry));
410   EXPECT_TRUE(entry.file_specific_info().cache_state().is_dirty());
411
412   // Switch to online.
413   fake_network_change_notifier_->SetConnectionType(
414       net::NetworkChangeNotifier::CONNECTION_WIFI);
415   drive_service_->set_offline(false);
416   base::RunLoop().RunUntilIdle();
417
418   // Fetched and uploaded.
419   EXPECT_EQ(FILE_ERROR_OK,
420             metadata_->GetResourceEntryById(GetLocalId("foo"), &entry));
421   EXPECT_TRUE(entry.file_specific_info().cache_state().is_present());
422   EXPECT_EQ(FILE_ERROR_OK,
423             metadata_->GetResourceEntryById(GetLocalId("dirty"), &entry));
424   EXPECT_FALSE(entry.file_specific_info().cache_state().is_dirty());
425 }
426
427 TEST_F(SyncClientTest, ScheduleRerun) {
428   // Add a fetch task for "foo", this should result in being paused.
429   drive_service_->set_resource_id_to_be_paused(resource_ids_["foo"]);
430   sync_client_->AddFetchTask(GetLocalId("foo"));
431   base::RunLoop().RunUntilIdle();
432
433   // While the first task is paused, add a task again.
434   // This results in scheduling rerun of the task.
435   sync_client_->AddFetchTask(GetLocalId("foo"));
436   base::RunLoop().RunUntilIdle();
437
438   // Resume the paused task.
439   drive_service_->set_resource_id_to_be_paused(std::string());
440   ASSERT_FALSE(drive_service_->paused_action().is_null());
441   drive_service_->paused_action().Run();
442   base::RunLoop().RunUntilIdle();
443
444   // Task should be run twice.
445   EXPECT_EQ(2, drive_service_->download_file_count());
446 }
447
448 TEST_F(SyncClientTest, Dependencies) {
449   // Create directories locally.
450   const base::FilePath kPath1(FILE_PATH_LITERAL("drive/root/dir1"));
451   const base::FilePath kPath2 = kPath1.AppendASCII("dir2");
452
453   ResourceEntry parent;
454   EXPECT_EQ(FILE_ERROR_OK,
455             metadata_->GetResourceEntryByPath(kPath1.DirName(), &parent));
456
457   ResourceEntry entry1;
458   entry1.set_parent_local_id(parent.local_id());
459   entry1.set_title(kPath1.BaseName().AsUTF8Unsafe());
460   entry1.mutable_file_info()->set_is_directory(true);
461   entry1.set_metadata_edit_state(ResourceEntry::DIRTY);
462   std::string local_id1;
463   EXPECT_EQ(FILE_ERROR_OK, metadata_->AddEntry(entry1, &local_id1));
464
465   ResourceEntry entry2;
466   entry2.set_parent_local_id(local_id1);
467   entry2.set_title(kPath2.BaseName().AsUTF8Unsafe());
468   entry2.mutable_file_info()->set_is_directory(true);
469   entry2.set_metadata_edit_state(ResourceEntry::DIRTY);
470   std::string local_id2;
471   EXPECT_EQ(FILE_ERROR_OK, metadata_->AddEntry(entry2, &local_id2));
472
473   // Start syncing the child first.
474   sync_client_->AddUpdateTask(ClientContext(USER_INITIATED), local_id2);
475   // Start syncing the parent later.
476   sync_client_->AddUpdateTask(ClientContext(USER_INITIATED), local_id1);
477   base::RunLoop().RunUntilIdle();
478
479   // Both entries are synced.
480   EXPECT_EQ(FILE_ERROR_OK, metadata_->GetResourceEntryById(local_id1, &entry1));
481   EXPECT_EQ(ResourceEntry::CLEAN, entry1.metadata_edit_state());
482   EXPECT_EQ(FILE_ERROR_OK, metadata_->GetResourceEntryById(local_id2, &entry2));
483   EXPECT_EQ(ResourceEntry::CLEAN, entry2.metadata_edit_state());
484 }
485
486 TEST_F(SyncClientTest, WaitForUpdateTaskToComplete) {
487   // Create a directory locally.
488   const base::FilePath kPath(FILE_PATH_LITERAL("drive/root/dir1"));
489
490   ResourceEntry parent;
491   EXPECT_EQ(FILE_ERROR_OK,
492             metadata_->GetResourceEntryByPath(kPath.DirName(), &parent));
493
494   ResourceEntry entry;
495   entry.set_parent_local_id(parent.local_id());
496   entry.set_title(kPath.BaseName().AsUTF8Unsafe());
497   entry.mutable_file_info()->set_is_directory(true);
498   entry.set_metadata_edit_state(ResourceEntry::DIRTY);
499   std::string local_id;
500   EXPECT_EQ(FILE_ERROR_OK, metadata_->AddEntry(entry, &local_id));
501
502   // Sync task is not yet avialable.
503   FileError error = FILE_ERROR_FAILED;
504   EXPECT_FALSE(sync_client_->WaitForUpdateTaskToComplete(
505       local_id, google_apis::test_util::CreateCopyResultCallback(&error)));
506
507   // Start syncing the directory and wait for it to complete.
508   sync_client_->AddUpdateTask(ClientContext(USER_INITIATED), local_id);
509
510   EXPECT_TRUE(sync_client_->WaitForUpdateTaskToComplete(
511       local_id, google_apis::test_util::CreateCopyResultCallback(&error)));
512
513   base::RunLoop().RunUntilIdle();
514
515   // The callback is called.
516   EXPECT_EQ(FILE_ERROR_OK, error);
517 }
518
519 }  // namespace internal
520 }  // namespace drive