sync: Implement per-type update processing

sync/engine/sync_directory_update_handler_unittest.cc

Index: sync/engine/sync_directory_update_handler_unittest.cc
diff --git a/sync/engine/sync_directory_update_handler_unittest.cc b/sync/engine/sync_directory_update_handler_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..05207d6ef4fcd535458176ae5c676ac8bbb6c913
--- /dev/null
+++ b/sync/engine/sync_directory_update_handler_unittest.cc
@@ -0,0 +1,211 @@
+// Copyright 2013 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 "sync/engine/sync_directory_update_handler.h"
+
+#include "base/compiler_specific.h"
+#include "base/message_loop/message_loop.h"
+#include "sync/engine/syncer_proto_util.h"
+#include "sync/internal_api/public/base/model_type.h"
+#include "sync/protocol/sync.pb.h"
+#include "sync/sessions/status_controller.h"
+#include "sync/syncable/directory.h"
+#include "sync/syncable/entry.h"
+#include "sync/syncable/syncable_model_neutral_write_transaction.h"
+#include "sync/syncable/syncable_proto_util.h"
+#include "sync/syncable/syncable_read_transaction.h"
+#include "sync/test/engine/test_directory_setter_upper.h"
+#include "sync/test/engine/test_syncable_utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace syncer {
+
+using syncable::UNITTEST;
+
+class SyncDirectoryUpdateHandlerTest : public ::testing::Test {
+ public:
+  virtual void SetUp() OVERRIDE {
+    dir_maker_.SetUp();
+  }
+
+  virtual void TearDown() OVERRIDE {
+    dir_maker_.TearDown();
+  }
+
+  syncable::Directory* dir() {
+    return dir_maker_.directory();
+  }
+ protected:
+  scoped_ptr<sync_pb::SyncEntity> CreateUpdate(
+      const std::string& id,
+      const std::string& parent,
+      const ModelType& type);
+
+  // This exists mostly to give tests access to the protected member function.
+  // Warning: This takes the syncable directory lock.
+  void UpdateSyncEntities(
+      SyncDirectoryUpdateHandler* handler,
+      const SyncEntityList& applicable_updates,
+      sessions::StatusController* status);
+
+  // Another function to access private member functions.
+  void UpdateProgressMarkers(
+      SyncDirectoryUpdateHandler* handler,
+      const sync_pb::DataTypeProgressMarker& progress);
+
+ private:
+  base::MessageLoop loop_;  // Needed to initialize the directory.
+  TestDirectorySetterUpper dir_maker_;
+};
+
+scoped_ptr<sync_pb::SyncEntity> SyncDirectoryUpdateHandlerTest::CreateUpdate(
+    const std::string& id,
+    const std::string& parent,
+    const ModelType& type) {
+  scoped_ptr<sync_pb::SyncEntity> e(new sync_pb::SyncEntity());
+  e->set_id_string(id);
+  e->set_parent_id_string(parent);
+  e->set_non_unique_name(id);
+  e->set_name(id);
+  e->set_version(1000);
+  AddDefaultFieldValue(type, e->mutable_specifics());
+  return e.Pass();
+}
+
+void SyncDirectoryUpdateHandlerTest::UpdateSyncEntities(
+    SyncDirectoryUpdateHandler* handler,
+    const SyncEntityList& applicable_updates,
+    sessions::StatusController* status) {
+  syncable::ModelNeutralWriteTransaction trans(FROM_HERE, UNITTEST, dir());
+  handler->UpdateSyncEntities(&trans, applicable_updates, status);
+}
+
+void SyncDirectoryUpdateHandlerTest::UpdateProgressMarkers(
+    SyncDirectoryUpdateHandler* handler,
+    const sync_pb::DataTypeProgressMarker& progress) {
+  handler->UpdateProgressMarkers(progress);
+}
+
+static const char kCacheGuid[] = "IrcjZ2jyzHDV9Io4+zKcXQ==";
+
+// Test that the bookmark tag is set on newly downloaded items.
+TEST_F(SyncDirectoryUpdateHandlerTest, NewBookmarkTag) {
+  SyncDirectoryUpdateHandler handler(dir(), BOOKMARKS);
+  sync_pb::GetUpdatesResponse gu_response;
+  sessions::StatusController status;
+
+  // Add a bookmark item to the update message.
+  std::string root = syncable::GetNullId().GetServerId();
+  syncable::Id server_id = syncable::Id::CreateFromServerId("b1");
+  scoped_ptr<sync_pb::SyncEntity> e =
+      CreateUpdate(SyncableIdToProto(server_id), root, BOOKMARKS);
+  e->set_originator_cache_guid(
+      std::string(kCacheGuid, arraysize(kCacheGuid)-1));
+  syncable::Id client_id = syncable::Id::CreateFromClientString("-2");
+  e->set_originator_client_item_id(client_id.GetServerId());
+  e->set_position_in_parent(0);
+
+  // Add it to the applicable updates list.
+  SyncEntityList bookmark_updates;
+  bookmark_updates.push_back(e.get());
+
+  // Process the update.
+  UpdateSyncEntities(&handler, bookmark_updates, &status);
+
+  syncable::ReadTransaction trans(FROM_HERE, dir());
+  syncable::Entry entry(&trans, syncable::GET_BY_ID, server_id);
+  ASSERT_TRUE(entry.good());
+  EXPECT_TRUE(UniquePosition::IsValidSuffix(entry.GetUniqueBookmarkTag()));
+  EXPECT_TRUE(entry.GetServerUniquePosition().IsValid());
+
+  // If this assertion fails, that might indicate that the algorithm used to
+  // generate bookmark tags has been modified.  This could have implications for
+  // bookmark ordering.  Please make sure you know what you're doing if you
+  // intend to make such a change.
+  EXPECT_EQ("6wHRAb3kbnXV5GHrejp4/c1y5tw=", entry.GetUniqueBookmarkTag());
+}
+
+// Test the receipt of a type root node.
+TEST_F(SyncDirectoryUpdateHandlerTest, ReceiveServerCreatedBookmarkFolders) {
+  SyncDirectoryUpdateHandler handler(dir(), BOOKMARKS);
+  sync_pb::GetUpdatesResponse gu_response;
+  sessions::StatusController status;
+
+  // Create an update that mimics the bookmark root.
+  syncable::Id server_id = syncable::Id::CreateFromServerId("xyz");
+  std::string root = syncable::GetNullId().GetServerId();
+  scoped_ptr<sync_pb::SyncEntity> e =
+      CreateUpdate(SyncableIdToProto(server_id), root, BOOKMARKS);
+  e->set_server_defined_unique_tag("google_chrome_bookmarks");
+  e->set_folder(true);
+
+  // Add it to the applicable updates list.
+  SyncEntityList bookmark_updates;
+  bookmark_updates.push_back(e.get());
+
+  EXPECT_FALSE(SyncerProtoUtil::ShouldMaintainPosition(*e));
+
+  // Process it.
+  UpdateSyncEntities(&handler, bookmark_updates, &status);
+
+  // Verify the results.
+  syncable::ReadTransaction trans(FROM_HERE, dir());
+  syncable::Entry entry(&trans, syncable::GET_BY_ID, server_id);
+  ASSERT_TRUE(entry.good());
+
+  EXPECT_FALSE(entry.ShouldMaintainPosition());
+  EXPECT_FALSE(entry.GetUniquePosition().IsValid());
+  EXPECT_FALSE(entry.GetServerUniquePosition().IsValid());
+  EXPECT_TRUE(entry.GetUniqueBookmarkTag().empty());
+}
+
+// Test the receipt of a non-bookmark item.
+TEST_F(SyncDirectoryUpdateHandlerTest, ReceiveNonBookmarkItem) {
+  SyncDirectoryUpdateHandler handler(dir(), AUTOFILL);
+  sync_pb::GetUpdatesResponse gu_response;
+  sessions::StatusController status;
+
+  std::string root = syncable::GetNullId().GetServerId();
+  syncable::Id server_id = syncable::Id::CreateFromServerId("xyz");
+  scoped_ptr<sync_pb::SyncEntity> e =
+      CreateUpdate(SyncableIdToProto(server_id), root, AUTOFILL);
+  e->set_server_defined_unique_tag("9PGRuKdX5sHyGMB17CvYTXuC43I=");
+
+  // Add it to the applicable updates list.
+  SyncEntityList autofill_updates;
+  autofill_updates.push_back(e.get());
+
+  EXPECT_FALSE(SyncerProtoUtil::ShouldMaintainPosition(*e));
+
+  // Process it.
+  UpdateSyncEntities(&handler, autofill_updates, &status);
+
+  syncable::ReadTransaction trans(FROM_HERE, dir());
+  syncable::Entry entry(&trans, syncable::GET_BY_ID, server_id);
+  ASSERT_TRUE(entry.good());
+
+  EXPECT_FALSE(entry.ShouldMaintainPosition());
+  EXPECT_FALSE(entry.GetUniquePosition().IsValid());
+  EXPECT_FALSE(entry.GetServerUniquePosition().IsValid());
+  EXPECT_TRUE(entry.GetUniqueBookmarkTag().empty());
+}
+
+// Tests the setting of progress markers.
+TEST_F(SyncDirectoryUpdateHandlerTest, ProcessNewProgressMarkers) {
+  SyncDirectoryUpdateHandler handler(dir(), BOOKMARKS);
+
+  sync_pb::DataTypeProgressMarker progress;
+  progress.set_data_type_id(GetSpecificsFieldNumberFromModelType(BOOKMARKS));
+  progress.set_token("token");
+
+  UpdateProgressMarkers(&handler, progress);
+
+  sync_pb::DataTypeProgressMarker saved;
+  dir()->GetDownloadProgress(BOOKMARKS, &saved);
+
+  EXPECT_EQ(progress.token(), saved.token());
+  EXPECT_EQ(progress.data_type_id(), saved.data_type_id());
+}
+
+}  // namespace syncer