text: // Copyright (c) 2012 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #include "chrome/browser/drive/fake_drive_service.h"
  
  #include <string>
  #include <vector>
  
  #include "base/files/file_util.h"
  #include "base/files/scoped_temp_dir.h"
  #include "base/md5.h"
  #include "base/run_loop.h"
  #include "base/stl_util.h"
  #include "base/strings/stringprintf.h"
  #include "base/strings/utf_string_conversions.h"
  #include "chrome/browser/drive/test_util.h"
  #include "content/public/test/test_browser_thread_bundle.h"
  #include "google_apis/drive/drive_api_parser.h"
  #include "google_apis/drive/test_util.h"
  #include "testing/gtest/include/gtest/gtest.h"
  
  using google_apis::AboutResource;
  using google_apis::AppList;
  using google_apis::ChangeList;
  using google_apis::ChangeResource;
  using google_apis::FileList;
  using google_apis::FileResource;
  using google_apis::GDATA_NO_CONNECTION;
  using google_apis::GDATA_OTHER_ERROR;
  using google_apis::GDataErrorCode;
  using google_apis::GetContentCallback;
  using google_apis::HTTP_CREATED;
  using google_apis::HTTP_FORBIDDEN;
  using google_apis::HTTP_NOT_FOUND;
  using google_apis::HTTP_NO_CONTENT;
  using google_apis::HTTP_PRECONDITION;
  using google_apis::HTTP_RESUME_INCOMPLETE;
  using google_apis::HTTP_SUCCESS;
  using google_apis::ProgressCallback;
  using google_apis::UploadRangeResponse;
  
  namespace drive {
  
  namespace test_util {
  
  using google_apis::test_util::AppendProgressCallbackResult;
  using google_apis::test_util::CreateCopyResultCallback;
  using google_apis::test_util::ProgressInfo;
  using google_apis::test_util::TestGetContentCallback;
  using google_apis::test_util::WriteStringToFile;
  
  }  // namespace test_util
  
  namespace {
  
  class FakeDriveServiceTest : public testing::Test {
   protected:
    // Returns the resource entry that matches |resource_id|.
    scoped_ptr<FileResource> FindEntry(const std::string& resource_id) {
      GDataErrorCode error = GDATA_OTHER_ERROR;
      scoped_ptr<FileResource> entry;
      fake_service_.GetFileResource(
          resource_id, test_util::CreateCopyResultCallback(&error, &entry));
      base::RunLoop().RunUntilIdle();
      return entry.Pass();
    }
  
    // Returns true if the resource identified by |resource_id| exists.
    bool Exists(const std::string& resource_id) {
      scoped_ptr<FileResource> entry = FindEntry(resource_id);
      return entry && !entry->labels().is_trashed();
    }
  
    // Adds a new directory at |parent_resource_id| with the given name.
    // Returns true on success.
    bool AddNewDirectory(const std::string& parent_resource_id,
                         const std::string& directory_title) {
      GDataErrorCode error = GDATA_OTHER_ERROR;
      scoped_ptr<FileResource> entry;
      fake_service_.AddNewDirectory(
          parent_resource_id,
          directory_title,
          DriveServiceInterface::AddNewDirectoryOptions(),
          test_util::CreateCopyResultCallback(&error, &entry));
      base::RunLoop().RunUntilIdle();
      return error == HTTP_CREATED;
    }
  
    // Returns true if the resource identified by |resource_id| has a parent
    // identified by |parent_id|.
    bool HasParent(const std::string& resource_id, const std::string& parent_id) {
      scoped_ptr<FileResource> entry = FindEntry(resource_id);
      if (entry) {
        for (size_t i = 0; i < entry->parents().size(); ++i) {
          if (entry->parents()[i].file_id() == parent_id)
            return true;
        }
      }
      return false;
    }
  
    int64 GetLargestChangeByAboutResource() {
      GDataErrorCode error;
      scoped_ptr<AboutResource> about_resource;
      fake_service_.GetAboutResource(
          test_util::CreateCopyResultCallback(&error, &about_resource));
      base::RunLoop().RunUntilIdle();
      return about_resource->largest_change_id();
    }
  
    content::TestBrowserThreadBundle thread_bundle_;
    FakeDriveService fake_service_;
  };
  
  TEST_F(FakeDriveServiceTest, GetAllFileList) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetAllFileList(
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check.
    EXPECT_EQ(15U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.file_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetAllFileList_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetAllFileList(
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(file_list);
  }
  
  TEST_F(FakeDriveServiceTest, GetFileListInDirectory_InRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetFileListInDirectory(
        fake_service_.GetRootResourceId(),
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 8 entries in the root directory.
    EXPECT_EQ(8U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.directory_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetFileListInDirectory_InNonRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetFileListInDirectory(
        "1_folder_resource_id",
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There is three entries in 1_folder_resource_id
    // directory.
    EXPECT_EQ(3U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.directory_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetFileListInDirectory_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetFileListInDirectory(
        fake_service_.GetRootResourceId(),
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(file_list);
  }
  
  TEST_F(FakeDriveServiceTest, Search) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "File",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 4 entries that contain "File" in their
    // titles.
    EXPECT_EQ(4U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, Search_WithAttribute) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "title:1.txt",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 4 entries that contain "1.txt" in their
    // titles.
    EXPECT_EQ(4U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, Search_MultipleQueries) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "Directory 1",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // There are 2 entries that contain both "Directory" and "1" in their titles.
    EXPECT_EQ(2U, file_list->items().size());
  
    fake_service_.Search(
        "\"Directory 1\"",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // There is 1 entry that contain "Directory 1" in its title.
    EXPECT_EQ(1U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, Search_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "Directory 1",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(file_list);
  }
  
  TEST_F(FakeDriveServiceTest, Search_Deleted) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_NO_CONTENT, error);
  
    error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "File",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 4 entries that contain "File" in their
    // titles and one of them is deleted.
    EXPECT_EQ(3U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, Search_Trashed) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("2_file_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_SUCCESS, error);
  
    error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "File",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 4 entries that contain "File" in their
    // titles and one of them is deleted.
    EXPECT_EQ(3U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, SearchByTitle) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.SearchByTitle(
        "1.txt",  // title
        fake_service_.GetRootResourceId(),  // directory_resource_id
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 2 entries that contain "1.txt" in their
    // titles directly under the root directory.
    EXPECT_EQ(2U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, SearchByTitle_EmptyDirectoryResourceId) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.SearchByTitle(
        "1.txt",  // title
        "",  // directory resource id
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
    // Do some sanity check. There are 4 entries that contain "1.txt" in their
    // titles.
    EXPECT_EQ(4U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, SearchByTitle_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.SearchByTitle(
        "Directory 1",  // title
        fake_service_.GetRootResourceId(),  // directory_resource_id
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(file_list);
  }
  
  TEST_F(FakeDriveServiceTest, GetChangeList_NoNewEntries) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<ChangeList> change_list;
    fake_service_.GetChangeList(
        fake_service_.about_resource().largest_change_id() + 1,
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
    EXPECT_EQ(fake_service_.about_resource().largest_change_id(),
              change_list->largest_change_id());
    // This should be empty as the latest changestamp was passed to
    // GetChangeList(), hence there should be no new entries.
    EXPECT_EQ(0U, change_list->items().size());
    // It's considered loaded even if the result is empty.
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetChangeList_WithNewEntry) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    const int64 old_largest_change_id =
        fake_service_.about_resource().largest_change_id();
  
    // Add a new directory in the root directory.
    ASSERT_TRUE(AddNewDirectory(
        fake_service_.GetRootResourceId(), "new directory"));
  
    // Get the resource list newer than old_largest_change_id.
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<ChangeList> change_list;
    fake_service_.GetChangeList(
        old_largest_change_id + 1,
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
    EXPECT_EQ(fake_service_.about_resource().largest_change_id(),
              change_list->largest_change_id());
    // The result should only contain the newly created directory.
    ASSERT_EQ(1U, change_list->items().size());
    ASSERT_TRUE(change_list->items()[0]->file());
    EXPECT_EQ("new directory", change_list->items()[0]->file()->title());
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetChangeList_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<ChangeList> change_list;
    fake_service_.GetChangeList(
        654321,  // start_changestamp
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(change_list);
  }
  
  TEST_F(FakeDriveServiceTest, GetChangeList_DeletedEntry) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    ASSERT_TRUE(Exists("2_file_resource_id"));
    const int64 old_largest_change_id =
        fake_service_.about_resource().largest_change_id();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    ASSERT_EQ(HTTP_NO_CONTENT, error);
    ASSERT_FALSE(Exists("2_file_resource_id"));
  
    // Get the resource list newer than old_largest_change_id.
    error = GDATA_OTHER_ERROR;
    scoped_ptr<ChangeList> change_list;
    fake_service_.GetChangeList(
        old_largest_change_id + 1,
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
    EXPECT_EQ(fake_service_.about_resource().largest_change_id(),
              change_list->largest_change_id());
    // The result should only contain the deleted file.
    ASSERT_EQ(1U, change_list->items().size());
    const ChangeResource& item = *change_list->items()[0];
    EXPECT_EQ("2_file_resource_id", item.file_id());
    EXPECT_FALSE(item.file());
    EXPECT_TRUE(item.is_deleted());
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetChangeList_TrashedEntry) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    ASSERT_TRUE(Exists("2_file_resource_id"));
    const int64 old_largest_change_id =
        fake_service_.about_resource().largest_change_id();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("2_file_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    ASSERT_EQ(HTTP_SUCCESS, error);
    ASSERT_FALSE(Exists("2_file_resource_id"));
  
    // Get the resource list newer than old_largest_change_id.
    error = GDATA_OTHER_ERROR;
    scoped_ptr<ChangeList> change_list;
    fake_service_.GetChangeList(
        old_largest_change_id + 1,
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
    EXPECT_EQ(fake_service_.about_resource().largest_change_id(),
              change_list->largest_change_id());
    // The result should only contain the trashed file.
    ASSERT_EQ(1U, change_list->items().size());
    const ChangeResource& item = *change_list->items()[0];
    EXPECT_EQ("2_file_resource_id", item.file_id());
    ASSERT_TRUE(item.file());
    EXPECT_TRUE(item.file()->labels().is_trashed());
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetRemainingFileList_GetAllFileList) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_default_max_results(6);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetAllFileList(
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    // Do some sanity check.
    // The number of results is 14 entries. Thus, it should split into three
    // chunks: 6, 6, and then 2.
    EXPECT_EQ(6U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.file_list_load_count());
  
    // Second page loading.
    // Keep the next url before releasing the |file_list|.
    GURL next_url(file_list->next_link());
  
    error = GDATA_OTHER_ERROR;
    file_list.reset();
    fake_service_.GetRemainingFileList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    EXPECT_EQ(6U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.file_list_load_count());
  
    // Third page loading.
    next_url = file_list->next_link();
  
    error = GDATA_OTHER_ERROR;
    file_list.reset();
    fake_service_.GetRemainingFileList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    EXPECT_EQ(3U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.file_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetRemainingFileList_GetFileListInDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_default_max_results(3);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.GetFileListInDirectory(
        fake_service_.GetRootResourceId(),
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    // Do some sanity check.
    // The number of results is 8 entries. Thus, it should split into three
    // chunks: 3, 3, and then 2.
    EXPECT_EQ(3U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.directory_load_count());
  
    // Second page loading.
    // Keep the next url before releasing the |file_list|.
    GURL next_url = file_list->next_link();
  
    error = GDATA_OTHER_ERROR;
    file_list.reset();
    fake_service_.GetRemainingFileList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    EXPECT_EQ(3U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.directory_load_count());
  
    // Third page loading.
    next_url = file_list->next_link();
  
    error = GDATA_OTHER_ERROR;
    file_list.reset();
    fake_service_.GetRemainingFileList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    EXPECT_EQ(2U, file_list->items().size());
    EXPECT_EQ(1, fake_service_.directory_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetRemainingFileList_Search) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_default_max_results(2);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileList> file_list;
    fake_service_.Search(
        "File",  // search_query
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    // Do some sanity check.
    // The number of results is 4 entries. Thus, it should split into two
    // chunks: 2, and then 2
    EXPECT_EQ(2U, file_list->items().size());
  
    // Second page loading.
    // Keep the next url before releasing the |file_list|.
    GURL next_url = file_list->next_link();
  
    error = GDATA_OTHER_ERROR;
    file_list.reset();
    fake_service_.GetRemainingFileList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &file_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(file_list);
  
    EXPECT_EQ(2U, file_list->items().size());
  }
  
  TEST_F(FakeDriveServiceTest, GetRemainingChangeList_GetChangeList) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_default_max_results(2);
    const int64 old_largest_change_id =
        fake_service_.about_resource().largest_change_id();
  
    // Add 5 new directory in the root directory.
    for (int i = 0; i < 5; ++i) {
      ASSERT_TRUE(AddNewDirectory(
          fake_service_.GetRootResourceId(),
          base::StringPrintf("new directory %d", i)));
    }
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<ChangeList> change_list;
    fake_service_.GetChangeList(
        old_largest_change_id + 1,  // start_changestamp
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
  
    // Do some sanity check.
    // The number of results is 5 entries. Thus, it should split into three
    // chunks: 2, 2 and then 1.
    EXPECT_EQ(2U, change_list->items().size());
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  
    // Second page loading.
    // Keep the next url before releasing the |change_list|.
    GURL next_url = change_list->next_link();
  
    error = GDATA_OTHER_ERROR;
    change_list.reset();
    fake_service_.GetRemainingChangeList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
  
    EXPECT_EQ(2U, change_list->items().size());
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  
    // Third page loading.
    next_url = change_list->next_link();
  
    error = GDATA_OTHER_ERROR;
    change_list.reset();
    fake_service_.GetRemainingChangeList(
        next_url,
        test_util::CreateCopyResultCallback(&error, &change_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(change_list);
  
    EXPECT_EQ(1U, change_list->items().size());
    EXPECT_EQ(1, fake_service_.change_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetAboutResource) {
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<AboutResource> about_resource;
    fake_service_.GetAboutResource(
        test_util::CreateCopyResultCallback(&error, &about_resource));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
  
    ASSERT_TRUE(about_resource);
    // Do some sanity check.
    EXPECT_EQ(fake_service_.GetRootResourceId(),
              about_resource->root_folder_id());
    EXPECT_EQ(1, fake_service_.about_resource_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetAboutResource_Offline) {
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<AboutResource> about_resource;
    fake_service_.GetAboutResource(
        test_util::CreateCopyResultCallback(&error, &about_resource));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(about_resource);
  }
  
  TEST_F(FakeDriveServiceTest, GetAppList) {
    ASSERT_TRUE(fake_service_.LoadAppListForDriveApi(
        "drive/applist.json"));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<AppList> app_list;
    fake_service_.GetAppList(
        test_util::CreateCopyResultCallback(&error, &app_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
  
    ASSERT_TRUE(app_list);
    EXPECT_EQ(1, fake_service_.app_list_load_count());
  }
  
  TEST_F(FakeDriveServiceTest, GetAppList_Offline) {
    ASSERT_TRUE(fake_service_.LoadAppListForDriveApi(
        "drive/applist.json"));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<AppList> app_list;
    fake_service_.GetAppList(
        test_util::CreateCopyResultCallback(&error, &app_list));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(app_list);
  }
  
  TEST_F(FakeDriveServiceTest, GetFileResource_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "2_file_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.GetFileResource(
        kResourceId, test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(entry);
    // Do some sanity check.
    EXPECT_EQ(kResourceId, entry->file_id());
  }
  
  TEST_F(FakeDriveServiceTest, GetFileResource_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "nonexisting_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.GetFileResource(
        kResourceId, test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    ASSERT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, GetFileResource_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kResourceId = "2_file_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.GetFileResource(
        kResourceId, test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, GetShareUrl) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "2_file_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL share_url;
    fake_service_.GetShareUrl(
        kResourceId,
        GURL(),  // embed origin
        test_util::CreateCopyResultCallback(&error, &share_url));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    EXPECT_FALSE(share_url.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, DeleteResource_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    // Resource "2_file_resource_id" should now exist.
    ASSERT_TRUE(Exists("2_file_resource_id"));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NO_CONTENT, error);
    // Resource "2_file_resource_id" should be gone now.
    EXPECT_FALSE(Exists("2_file_resource_id"));
  
    error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_FALSE(Exists("2_file_resource_id"));
  }
  
  TEST_F(FakeDriveServiceTest, DeleteResource_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("nonexisting_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, DeleteResource_ETagMatch) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    // Resource "2_file_resource_id" should now exist.
    scoped_ptr<FileResource> entry = FindEntry("2_file_resource_id");
    ASSERT_TRUE(entry);
    ASSERT_FALSE(entry->labels().is_trashed());
    ASSERT_FALSE(entry->etag().empty());
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 entry->etag() + "_mismatch",
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_PRECONDITION, error);
    // Resource "2_file_resource_id" should still exist.
    EXPECT_TRUE(Exists("2_file_resource_id"));
  
    error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 entry->etag(),
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_NO_CONTENT, error);
    // Resource "2_file_resource_id" should be gone now.
    EXPECT_FALSE(Exists("2_file_resource_id"));
  }
  
  TEST_F(FakeDriveServiceTest, DeleteResource_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
  }
  
  TEST_F(FakeDriveServiceTest, DeleteResource_Forbidden) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    EXPECT_EQ(HTTP_SUCCESS, fake_service_.SetUserPermission(
        "2_file_resource_id", google_apis::drive::PERMISSION_ROLE_READER));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.DeleteResource("2_file_resource_id",
                                 std::string(),  // etag
                                 test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_FORBIDDEN, error);
  }
  
  TEST_F(FakeDriveServiceTest, TrashResource_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    // Resource "2_file_resource_id" should now exist.
    ASSERT_TRUE(Exists("2_file_resource_id"));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("2_file_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    // Resource "2_file_resource_id" should be gone now.
    EXPECT_FALSE(Exists("2_file_resource_id"));
  
    error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("2_file_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_FALSE(Exists("2_file_resource_id"));
  }
  
  TEST_F(FakeDriveServiceTest, TrashResource_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("nonexisting_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, TrashResource_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("2_file_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
  }
  
  TEST_F(FakeDriveServiceTest, TrashResource_Forbidden) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    EXPECT_EQ(HTTP_SUCCESS, fake_service_.SetUserPermission(
        "2_file_resource_id", google_apis::drive::PERMISSION_ROLE_READER));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.TrashResource("2_file_resource_id",
                                test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_FORBIDDEN, error);
  }
  
  TEST_F(FakeDriveServiceTest, DownloadFile_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  
    std::vector<test_util::ProgressInfo> download_progress_values;
  
    const base::FilePath kOutputFilePath =
        temp_dir.path().AppendASCII("whatever.txt");
    GDataErrorCode error = GDATA_OTHER_ERROR;
    base::FilePath output_file_path;
    test_util::TestGetContentCallback get_content_callback;
    fake_service_.DownloadFile(
        kOutputFilePath,
        "2_file_resource_id",
        test_util::CreateCopyResultCallback(&error, &output_file_path),
        get_content_callback.callback(),
        base::Bind(&test_util::AppendProgressCallbackResult,
                   &download_progress_values));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    EXPECT_EQ(output_file_path, kOutputFilePath);
    std::string content;
    ASSERT_TRUE(base::ReadFileToString(output_file_path, &content));
    EXPECT_EQ("This is some test content.", content);
    ASSERT_TRUE(!download_progress_values.empty());
    EXPECT_TRUE(base::STLIsSorted(download_progress_values));
    EXPECT_LE(0, download_progress_values.front().first);
    EXPECT_GE(26, download_progress_values.back().first);
    EXPECT_EQ(content, get_content_callback.GetConcatenatedData());
  }
  
  TEST_F(FakeDriveServiceTest, DownloadFile_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  
    const base::FilePath kOutputFilePath =
        temp_dir.path().AppendASCII("whatever.txt");
    GDataErrorCode error = GDATA_OTHER_ERROR;
    base::FilePath output_file_path;
    fake_service_.DownloadFile(
        kOutputFilePath,
        "non_existent_file_resource_id",
        test_util::CreateCopyResultCallback(&error, &output_file_path),
        GetContentCallback(),
        ProgressCallback());
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, DownloadFile_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  
    const base::FilePath kOutputFilePath =
        temp_dir.path().AppendASCII("whatever.txt");
    GDataErrorCode error = GDATA_OTHER_ERROR;
    base::FilePath output_file_path;
    fake_service_.DownloadFile(
        kOutputFilePath,
        "2_file_resource_id",
        test_util::CreateCopyResultCallback(&error, &output_file_path),
        GetContentCallback(),
        ProgressCallback());
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
  }
  
  TEST_F(FakeDriveServiceTest, CopyResource) {
    const base::Time::Exploded kModifiedDate = {2012, 7, 0, 19, 15, 59, 13, 123};
  
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "2_file_resource_id";
    const std::string kParentResourceId = "2_folder_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.CopyResource(
        kResourceId,
        kParentResourceId,
        "new title",
        base::Time::FromUTCExploded(kModifiedDate),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(entry);
    // The copied entry should have the new resource ID and the title.
    EXPECT_NE(kResourceId, entry->file_id());
    EXPECT_EQ("new title", entry->title());
    EXPECT_EQ(base::Time::FromUTCExploded(kModifiedDate), entry->modified_date());
    EXPECT_TRUE(HasParent(entry->file_id(), kParentResourceId));
    // Should be incremented as a new hosted document was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, CopyResource_NonExisting) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "nonexisting_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.CopyResource(
        kResourceId,
        "1_folder_resource_id",
        "new title",
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, CopyResource_EmptyParentResourceId) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "2_file_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.CopyResource(
        kResourceId,
        std::string(),
        "new title",
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(entry);
    // The copied entry should have the new resource ID and the title.
    EXPECT_NE(kResourceId, entry->file_id());
    EXPECT_EQ("new title", entry->title());
    EXPECT_TRUE(HasParent(kResourceId, fake_service_.GetRootResourceId()));
    // Should be incremented as a new hosted document was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, CopyResource_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kResourceId = "2_file_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.CopyResource(
        kResourceId,
        "1_folder_resource_id",
        "new title",
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, UpdateResource) {
    const base::Time::Exploded kModifiedDate = {2012, 7, 0, 19, 15, 59, 13, 123};
    const base::Time::Exploded kViewedDate = {2013, 8, 1, 20, 16, 00, 14, 234};
  
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "2_file_resource_id";
    const std::string kParentResourceId = "2_folder_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.UpdateResource(
        kResourceId,
        kParentResourceId,
        "new title",
        base::Time::FromUTCExploded(kModifiedDate),
        base::Time::FromUTCExploded(kViewedDate),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(entry);
    // The updated entry should have the new title.
    EXPECT_EQ(kResourceId, entry->file_id());
    EXPECT_EQ("new title", entry->title());
    EXPECT_EQ(base::Time::FromUTCExploded(kModifiedDate),
              entry->modified_date());
    EXPECT_EQ(base::Time::FromUTCExploded(kViewedDate),
              entry->last_viewed_by_me_date());
    EXPECT_TRUE(HasParent(kResourceId, kParentResourceId));
    // Should be incremented as a new hosted document was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, UpdateResource_NonExisting) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "nonexisting_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.UpdateResource(
        kResourceId,
        "1_folder_resource_id",
        "new title",
        base::Time(),
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, UpdateResource_EmptyParentResourceId) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "2_file_resource_id";
  
    // Just make sure that the resource is under root.
    ASSERT_TRUE(HasParent(kResourceId, "fake_root"));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.UpdateResource(
        kResourceId,
        std::string(),
        "new title",
        base::Time(),
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(entry);
    // The updated entry should have the new title.
    EXPECT_EQ(kResourceId, entry->file_id());
    EXPECT_EQ("new title", entry->title());
    EXPECT_TRUE(HasParent(kResourceId, "fake_root"));
    // Should be incremented as a new hosted document was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, UpdateResource_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kResourceId = "2_file_resource_id";
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.UpdateResource(
        kResourceId,
        std::string(),
        "new title",
        base::Time(),
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, UpdateResource_Forbidden) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "2_file_resource_id";
    EXPECT_EQ(HTTP_SUCCESS, fake_service_.SetUserPermission(
        kResourceId, google_apis::drive::PERMISSION_ROLE_READER));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.UpdateResource(
        kResourceId,
        std::string(),
        "new title",
        base::Time(),
        base::Time(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_FORBIDDEN, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, AddResourceToDirectory_FileInRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "2_file_resource_id";
    const std::string kOldParentResourceId = fake_service_.GetRootResourceId();
    const std::string kNewParentResourceId = "1_folder_resource_id";
  
    // Here's the original parent link.
    EXPECT_TRUE(HasParent(kResourceId, kOldParentResourceId));
    EXPECT_FALSE(HasParent(kResourceId, kNewParentResourceId));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.AddResourceToDirectory(
        kNewParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
  
    // The parent link should now be changed.
    EXPECT_TRUE(HasParent(kResourceId, kOldParentResourceId));
    EXPECT_TRUE(HasParent(kResourceId, kNewParentResourceId));
    // Should be incremented as a file was moved.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddResourceToDirectory_FileInNonRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "subdirectory_file_1_id";
    const std::string kOldParentResourceId = "1_folder_resource_id";
    const std::string kNewParentResourceId = "2_folder_resource_id";
  
    // Here's the original parent link.
    EXPECT_TRUE(HasParent(kResourceId, kOldParentResourceId));
    EXPECT_FALSE(HasParent(kResourceId, kNewParentResourceId));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.AddResourceToDirectory(
        kNewParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
  
    // The parent link should now be changed.
    EXPECT_TRUE(HasParent(kResourceId, kOldParentResourceId));
    EXPECT_TRUE(HasParent(kResourceId, kNewParentResourceId));
    // Should be incremented as a file was moved.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddResourceToDirectory_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "nonexisting_file";
    const std::string kNewParentResourceId = "1_folder_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.AddResourceToDirectory(
        kNewParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, AddResourceToDirectory_OrphanFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "1_orphanfile_resource_id";
    const std::string kNewParentResourceId = "1_folder_resource_id";
  
    // The file does not belong to any directory, even to the root.
    EXPECT_FALSE(HasParent(kResourceId, kNewParentResourceId));
    EXPECT_FALSE(HasParent(kResourceId, fake_service_.GetRootResourceId()));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.AddResourceToDirectory(
        kNewParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
  
    // The parent link should now be changed.
    EXPECT_TRUE(HasParent(kResourceId, kNewParentResourceId));
    EXPECT_FALSE(HasParent(kResourceId, fake_service_.GetRootResourceId()));
    // Should be incremented as a file was moved.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddResourceToDirectory_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kResourceId = "2_file_resource_id";
    const std::string kNewParentResourceId = "1_folder_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.AddResourceToDirectory(
        kNewParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
  }
  
  TEST_F(FakeDriveServiceTest, RemoveResourceFromDirectory_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kResourceId = "subdirectory_file_1_id";
    const std::string kParentResourceId = "1_folder_resource_id";
  
    scoped_ptr<FileResource> entry = FindEntry(kResourceId);
    ASSERT_TRUE(entry);
    // The entry should have a parent now.
    ASSERT_FALSE(entry->parents().empty());
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.RemoveResourceFromDirectory(
        kParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NO_CONTENT, error);
  
    entry = FindEntry(kResourceId);
    ASSERT_TRUE(entry);
    // The entry should have no parent now.
    ASSERT_TRUE(entry->parents().empty());
    // Should be incremented as a file was moved to the root directory.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, RemoveResourceFromDirectory_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "nonexisting_file";
    const std::string kParentResourceId = "1_folder_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.RemoveResourceFromDirectory(
        kParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, RemoveResourceFromDirectory_OrphanFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "1_orphanfile_resource_id";
    const std::string kParentResourceId = fake_service_.GetRootResourceId();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.RemoveResourceFromDirectory(
        kParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
  }
  
  TEST_F(FakeDriveServiceTest, RemoveResourceFromDirectory_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kResourceId = "subdirectory_file_1_id";
    const std::string kParentResourceId = "1_folder_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    fake_service_.RemoveResourceFromDirectory(
        kParentResourceId,
        kResourceId,
        test_util::CreateCopyResultCallback(&error));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
  }
  
  TEST_F(FakeDriveServiceTest, AddNewDirectory_EmptyParent) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewDirectory(
        std::string(),
        "new directory",
        DriveServiceInterface::AddNewDirectoryOptions(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_TRUE(entry->IsDirectory());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ("new directory", entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), fake_service_.GetRootResourceId()));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewDirectory_ToRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewDirectory(
        fake_service_.GetRootResourceId(),
        "new directory",
        DriveServiceInterface::AddNewDirectoryOptions(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_TRUE(entry->IsDirectory());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ("new directory", entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), fake_service_.GetRootResourceId()));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewDirectory_ToRootDirectoryOnEmptyFileSystem) {
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewDirectory(
        fake_service_.GetRootResourceId(),
        "new directory",
        DriveServiceInterface::AddNewDirectoryOptions(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_TRUE(entry->IsDirectory());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ("new directory", entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), fake_service_.GetRootResourceId()));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewDirectory_ToNonRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kParentResourceId = "1_folder_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewDirectory(
        kParentResourceId,
        "new directory",
        DriveServiceInterface::AddNewDirectoryOptions(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_TRUE(entry->IsDirectory());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ("new directory", entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), kParentResourceId));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewDirectory_ToNonexistingDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kParentResourceId = "nonexisting_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewDirectory(
        kParentResourceId,
        "new directory",
        DriveServiceInterface::AddNewDirectoryOptions(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, AddNewDirectory_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewDirectory(
        fake_service_.GetRootResourceId(),
        "new directory",
        DriveServiceInterface::AddNewDirectoryOptions(),
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadNewFile_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadNewFile(
        "test/foo",
        13,
        "1_folder_resource_id",
        "new file.foo",
        FakeDriveService::InitiateUploadNewFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_TRUE(upload_location.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadNewFile_NotFound) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadNewFile(
        "test/foo",
        13,
        "non_existent",
        "new file.foo",
        FakeDriveService::InitiateUploadNewFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_TRUE(upload_location.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadNewFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadNewFile(
        "test/foo",
        13,
        "1_folder_resource_id",
        "new file.foo",
        FakeDriveService::InitiateUploadNewFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    EXPECT_FALSE(upload_location.is_empty());
    EXPECT_NE(GURL("https://1_folder_resumable_create_media_link?mode=newfile"),
              upload_location);
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadExistingFile_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadExistingFile(
        "test/foo",
        13,
        "2_file_resource_id",
        FakeDriveService::InitiateUploadExistingFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_TRUE(upload_location.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadExistingFile_Forbidden) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    EXPECT_EQ(HTTP_SUCCESS, fake_service_.SetUserPermission(
        "2_file_resource_id", google_apis::drive::PERMISSION_ROLE_READER));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadExistingFile(
        "test/foo",
        13,
        "2_file_resource_id",
        FakeDriveService::InitiateUploadExistingFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_FORBIDDEN, error);
    EXPECT_TRUE(upload_location.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadExistingFile_NotFound) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadExistingFile(
        "test/foo",
        13,
        "non_existent",
        FakeDriveService::InitiateUploadExistingFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_TRUE(upload_location.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUploadExistingFile_WrongETag) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    FakeDriveService::InitiateUploadExistingFileOptions options;
    options.etag = "invalid_etag";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadExistingFile(
        "text/plain",
        13,
        "2_file_resource_id",
        options,
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_PRECONDITION, error);
    EXPECT_TRUE(upload_location.is_empty());
  }
  
  TEST_F(FakeDriveServiceTest, InitiateUpload_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    scoped_ptr<FileResource> entry = FindEntry("2_file_resource_id");
    ASSERT_TRUE(entry);
  
    FakeDriveService::InitiateUploadExistingFileOptions options;
    options.etag = entry->etag();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadExistingFile(
        "text/plain",
        13,
        "2_file_resource_id",
        options,
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    EXPECT_TRUE(upload_location.is_valid());
  }
  
  TEST_F(FakeDriveServiceTest, ResumeUpload_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadNewFile(
        "test/foo",
        15,
        "1_folder_resource_id",
        "new file.foo",
        FakeDriveService::InitiateUploadNewFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    EXPECT_FALSE(upload_location.is_empty());
    EXPECT_NE(GURL("https://1_folder_resumable_create_media_link"),
              upload_location);
  
    fake_service_.set_offline(true);
  
    UploadRangeResponse response;
    scoped_ptr<FileResource> entry;
    fake_service_.ResumeUpload(
        upload_location,
        0, 13, 15, "test/foo",
        base::FilePath(),
        test_util::CreateCopyResultCallback(&response, &entry),
        ProgressCallback());
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, response.code);
    EXPECT_FALSE(entry.get());
  }
  
  TEST_F(FakeDriveServiceTest, ResumeUpload_NotFound) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadNewFile(
        "test/foo",
        15,
        "1_folder_resource_id",
        "new file.foo",
        FakeDriveService::InitiateUploadNewFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    ASSERT_EQ(HTTP_SUCCESS, error);
  
    UploadRangeResponse response;
    scoped_ptr<FileResource> entry;
    fake_service_.ResumeUpload(
        GURL("https://foo.com/"),
        0, 13, 15, "test/foo",
        base::FilePath(),
        test_util::CreateCopyResultCallback(&response, &entry),
        ProgressCallback());
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, response.code);
    EXPECT_FALSE(entry.get());
  }
  
  TEST_F(FakeDriveServiceTest, ResumeUpload_ExistingFile) {
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
    base::FilePath local_file_path =
        temp_dir.path().Append(FILE_PATH_LITERAL("File 1.txt"));
    std::string contents("hogefugapiyo");
    ASSERT_TRUE(test_util::WriteStringToFile(local_file_path, contents));
  
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    scoped_ptr<FileResource> entry = FindEntry("2_file_resource_id");
    ASSERT_TRUE(entry);
  
    FakeDriveService::InitiateUploadExistingFileOptions options;
    options.etag = entry->etag();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadExistingFile(
        "text/plain",
        contents.size(),
        "2_file_resource_id",
        options,
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    ASSERT_EQ(HTTP_SUCCESS, error);
  
    UploadRangeResponse response;
    entry.reset();
    std::vector<test_util::ProgressInfo> upload_progress_values;
    fake_service_.ResumeUpload(
        upload_location,
        0, contents.size() / 2, contents.size(), "text/plain",
        local_file_path,
        test_util::CreateCopyResultCallback(&response, &entry),
        base::Bind(&test_util::AppendProgressCallbackResult,
                   &upload_progress_values));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_RESUME_INCOMPLETE, response.code);
    EXPECT_FALSE(entry.get());
    ASSERT_TRUE(!upload_progress_values.empty());
    EXPECT_TRUE(base::STLIsSorted(upload_progress_values));
    EXPECT_LE(0, upload_progress_values.front().first);
    EXPECT_GE(static_cast<int64>(contents.size() / 2),
              upload_progress_values.back().first);
  
    upload_progress_values.clear();
    fake_service_.ResumeUpload(
        upload_location,
        contents.size() / 2, contents.size(), contents.size(), "text/plain",
        local_file_path,
        test_util::CreateCopyResultCallback(&response, &entry),
        base::Bind(&test_util::AppendProgressCallbackResult,
                   &upload_progress_values));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, response.code);
    EXPECT_TRUE(entry.get());
    EXPECT_EQ(static_cast<int64>(contents.size()), entry->file_size());
    EXPECT_TRUE(Exists(entry->file_id()));
    ASSERT_TRUE(!upload_progress_values.empty());
    EXPECT_TRUE(base::STLIsSorted(upload_progress_values));
    EXPECT_LE(0, upload_progress_values.front().first);
    EXPECT_GE(static_cast<int64>(contents.size() - contents.size() / 2),
              upload_progress_values.back().first);
    EXPECT_EQ(base::MD5String(contents), entry->md5_checksum());
  }
  
  TEST_F(FakeDriveServiceTest, ResumeUpload_NewFile) {
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
    base::FilePath local_file_path =
        temp_dir.path().Append(FILE_PATH_LITERAL("new file.foo"));
    std::string contents("hogefugapiyo");
    ASSERT_TRUE(test_util::WriteStringToFile(local_file_path, contents));
  
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    GURL upload_location;
    fake_service_.InitiateUploadNewFile(
        "test/foo",
        contents.size(),
        "1_folder_resource_id",
        "new file.foo",
        FakeDriveService::InitiateUploadNewFileOptions(),
        test_util::CreateCopyResultCallback(&error, &upload_location));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    EXPECT_FALSE(upload_location.is_empty());
    EXPECT_NE(GURL("https://1_folder_resumable_create_media_link"),
              upload_location);
  
    UploadRangeResponse response;
    scoped_ptr<FileResource> entry;
    std::vector<test_util::ProgressInfo> upload_progress_values;
    fake_service_.ResumeUpload(
        upload_location,
        0, contents.size() / 2, contents.size(), "test/foo",
        local_file_path,
        test_util::CreateCopyResultCallback(&response, &entry),
        base::Bind(&test_util::AppendProgressCallbackResult,
                   &upload_progress_values));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_RESUME_INCOMPLETE, response.code);
    EXPECT_FALSE(entry.get());
    ASSERT_TRUE(!upload_progress_values.empty());
    EXPECT_TRUE(base::STLIsSorted(upload_progress_values));
    EXPECT_LE(0, upload_progress_values.front().first);
    EXPECT_GE(static_cast<int64>(contents.size() / 2),
              upload_progress_values.back().first);
  
    upload_progress_values.clear();
    fake_service_.ResumeUpload(
        upload_location,
        contents.size() / 2, contents.size(), contents.size(), "test/foo",
        local_file_path,
        test_util::CreateCopyResultCallback(&response, &entry),
        base::Bind(&test_util::AppendProgressCallbackResult,
                   &upload_progress_values));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, response.code);
    EXPECT_TRUE(entry.get());
    EXPECT_EQ(static_cast<int64>(contents.size()), entry->file_size());
    EXPECT_TRUE(Exists(entry->file_id()));
    ASSERT_TRUE(!upload_progress_values.empty());
    EXPECT_TRUE(base::STLIsSorted(upload_progress_values));
    EXPECT_LE(0, upload_progress_values.front().first);
    EXPECT_GE(static_cast<int64>(contents.size() - contents.size() / 2),
              upload_progress_values.back().first);
    EXPECT_EQ(base::MD5String(contents), entry->md5_checksum());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewFile_ToRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kContentType = "text/plain";
    const std::string kContentData = "This is some test content.";
    const std::string kTitle = "new file";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewFile(
        kContentType,
        kContentData,
        fake_service_.GetRootResourceId(),
        kTitle,
        false,  // shared_with_me
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_EQ(kContentType, entry->mime_type());
    EXPECT_EQ(static_cast<int64>(kContentData.size()), entry->file_size());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ(kTitle, entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), fake_service_.GetRootResourceId()));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
    EXPECT_EQ(base::MD5String(kContentData), entry->md5_checksum());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewFile_ToRootDirectoryOnEmptyFileSystem) {
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kContentType = "text/plain";
    const std::string kContentData = "This is some test content.";
    const std::string kTitle = "new file";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewFile(
        kContentType,
        kContentData,
        fake_service_.GetRootResourceId(),
        kTitle,
        false,  // shared_with_me
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_EQ(kContentType, entry->mime_type());
    EXPECT_EQ(static_cast<int64>(kContentData.size()), entry->file_size());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ(kTitle, entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), fake_service_.GetRootResourceId()));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
    EXPECT_EQ(base::MD5String(kContentData), entry->md5_checksum());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewFile_ToNonRootDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    const std::string kContentType = "text/plain";
    const std::string kContentData = "This is some test content.";
    const std::string kTitle = "new file";
    const std::string kParentResourceId = "1_folder_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewFile(
        kContentType,
        kContentData,
        kParentResourceId,
        kTitle,
        false,  // shared_with_me
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_EQ(kContentType, entry->mime_type());
    EXPECT_EQ(static_cast<int64>(kContentData.size()), entry->file_size());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ(kTitle, entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), kParentResourceId));
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
    EXPECT_EQ(base::MD5String(kContentData), entry->md5_checksum());
  }
  
  TEST_F(FakeDriveServiceTest, AddNewFile_ToNonexistingDirectory) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kContentType = "text/plain";
    const std::string kContentData = "This is some test content.";
    const std::string kTitle = "new file";
    const std::string kParentResourceId = "nonexisting_resource_id";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewFile(
        kContentType,
        kContentData,
        kParentResourceId,
        kTitle,
        false,  // shared_with_me
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, AddNewFile_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kContentType = "text/plain";
    const std::string kContentData = "This is some test content.";
    const std::string kTitle = "new file";
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewFile(
        kContentType,
        kContentData,
        fake_service_.GetRootResourceId(),
        kTitle,
        false,  // shared_with_me
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, AddNewFile_SharedWithMeLabel) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kContentType = "text/plain";
    const std::string kContentData = "This is some test content.";
    const std::string kTitle = "new file";
  
    int64 old_largest_change_id = GetLargestChangeByAboutResource();
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.AddNewFile(
        kContentType,
        kContentData,
        fake_service_.GetRootResourceId(),
        kTitle,
        true,  // shared_with_me
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_CREATED, error);
    ASSERT_TRUE(entry);
    EXPECT_EQ(kContentType, entry->mime_type());
    EXPECT_EQ(static_cast<int64>(kContentData.size()), entry->file_size());
    EXPECT_EQ("resource_id_1", entry->file_id());
    EXPECT_EQ(kTitle, entry->title());
    EXPECT_TRUE(HasParent(entry->file_id(), fake_service_.GetRootResourceId()));
    EXPECT_FALSE(entry->shared_with_me_date().is_null());
    // Should be incremented as a new directory was created.
    EXPECT_EQ(old_largest_change_id + 1,
              fake_service_.about_resource().largest_change_id());
    EXPECT_EQ(old_largest_change_id + 1, GetLargestChangeByAboutResource());
    EXPECT_EQ(base::MD5String(kContentData), entry->md5_checksum());
  }
  
  TEST_F(FakeDriveServiceTest, SetLastModifiedTime_ExistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "2_file_resource_id";
    base::Time time;
    ASSERT_TRUE(base::Time::FromString("1 April 2013 12:34:56", &time));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.SetLastModifiedTime(
        kResourceId,
        time,
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_SUCCESS, error);
    ASSERT_TRUE(entry);
    EXPECT_EQ(time, entry->modified_date());
  }
  
  TEST_F(FakeDriveServiceTest, SetLastModifiedTime_NonexistingFile) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
  
    const std::string kResourceId = "nonexisting_resource_id";
    base::Time time;
    ASSERT_TRUE(base::Time::FromString("1 April 2013 12:34:56", &time));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.SetLastModifiedTime(
        kResourceId,
        time,
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(HTTP_NOT_FOUND, error);
    EXPECT_FALSE(entry);
  }
  
  TEST_F(FakeDriveServiceTest, SetLastModifiedTime_Offline) {
    ASSERT_TRUE(test_util::SetUpTestEntries(&fake_service_));
    fake_service_.set_offline(true);
  
    const std::string kResourceId = "2_file_resource_id";
    base::Time time;
    ASSERT_TRUE(base::Time::FromString("1 April 2013 12:34:56", &time));
  
    GDataErrorCode error = GDATA_OTHER_ERROR;
    scoped_ptr<FileResource> entry;
    fake_service_.SetLastModifiedTime(
        kResourceId,
        time,
        test_util::CreateCopyResultCallback(&error, &entry));
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(GDATA_NO_CONNECTION, error);
    EXPECT_FALSE(entry);
  }
  
  }  // namespace
  
  }  // namespace drive
  