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// Copyright 2016 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 "components/sync/engine_impl/uss_migrator.h"
#include <memory>
#include <string>
#include <utility>
#include "base/memory/ptr_util.h"
#include "base/message_loop/message_loop.h"
#include "base/time/time.h"
#include "components/sync/base/hash_util.h"
#include "components/sync/engine_impl/cycle/non_blocking_type_debug_info_emitter.h"
#include "components/sync/engine_impl/model_type_worker.h"
#include "components/sync/engine_impl/test_entry_factory.h"
#include "components/sync/protocol/model_type_state.pb.h"
#include "components/sync/syncable/directory.h"
#include "components/sync/syncable/read_node.h"
#include "components/sync/syncable/read_transaction.h"
#include "components/sync/syncable/test_user_share.h"
#include "components/sync/test/engine/mock_model_type_processor.h"
#include "components/sync/test/engine/mock_nudge_handler.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace syncer {
namespace {
const ModelType kModelType = PREFERENCES;
std::string GenerateTagHash(const std::string& tag) {
return GenerateSyncableHash(kModelType, tag);
}
const char kToken1[] = "token1";
const char kTag1[] = "tag1";
const char kTag2[] = "tag2";
const char kTag3[] = "tag3";
const char kValue1[] = "value1";
const char kValue2[] = "value2";
const char kValue3[] = "value3";
const std::string kHash1(GenerateTagHash(kTag1));
sync_pb::EntitySpecifics GenerateSpecifics(const std::string& tag,
const std::string& value) {
sync_pb::EntitySpecifics specifics;
specifics.mutable_preference()->set_name(tag);
specifics.mutable_preference()->set_value(value);
return specifics;
}
} // namespace
class UssMigratorTest : public ::testing::Test {
public:
UssMigratorTest() : debug_emitter_(kModelType, &debug_observers_) {
test_user_share_.SetUp();
entry_factory_ = base::MakeUnique<TestEntryFactory>(directory());
auto processor = base::MakeUnique<MockModelTypeProcessor>();
processor_ = processor.get();
worker_ = base::MakeUnique<ModelTypeWorker>(
kModelType, sync_pb::ModelTypeState(), false, nullptr, &nudge_handler_,
std::move(processor), &debug_emitter_);
}
~UssMigratorTest() override { test_user_share_.TearDown(); }
void SetProgressMarkerToken(const std::string& token) {
sync_pb::DataTypeProgressMarker progress_marker;
progress_marker.set_token(token);
directory()->SetDownloadProgress(kModelType, progress_marker);
}
void CreateTypeRoot() { entry_factory_->CreateTypeRootNode(kModelType); }
int64_t InsertEntity(const std::string& key, const std::string& value) {
const sync_pb::EntitySpecifics specifics = GenerateSpecifics(key, value);
return entry_factory_->CreateSyncedItem(key, kModelType, false, specifics);
}
int64_t DeleteEntity(const std::string& key) {
return entry_factory_->CreateTombstone(key, kModelType);
}
base::Time GetCtimeForEntity(int64_t metahandle) {
ReadTransaction trans(FROM_HERE, user_share());
ReadNode read_node(&trans);
auto result = read_node.InitByIdLookup(metahandle);
DCHECK_EQ(BaseNode::INIT_OK, result);
return read_node.GetEntry()->GetServerCtime();
}
UserShare* user_share() { return test_user_share_.user_share(); }
MockNudgeHandler* nudge_handler() { return &nudge_handler_; }
ModelTypeWorker* worker() { return worker_.get(); }
MockModelTypeProcessor* processor() { return processor_; }
private:
syncable::Directory* directory() { return user_share()->directory.get(); }
base::MessageLoop message_loop_;
TestUserShare test_user_share_;
std::unique_ptr<TestEntryFactory> entry_factory_;
MockNudgeHandler nudge_handler_;
base::ObserverList<TypeDebugInfoObserver> debug_observers_;
NonBlockingTypeDebugInfoEmitter debug_emitter_;
MockModelTypeProcessor* processor_ = nullptr;
std::unique_ptr<ModelTypeWorker> worker_;
};
TEST_F(UssMigratorTest, Migrate) {
CreateTypeRoot();
SetProgressMarkerToken(kToken1);
int64_t metahandle = InsertEntity(kTag1, kValue1);
base::Time ctime = GetCtimeForEntity(metahandle);
ASSERT_TRUE(MigrateDirectoryData(kModelType, user_share(), worker()));
// No nudge should happen in the happy case.
EXPECT_EQ(0, nudge_handler()->GetNumInitialDownloadNudges());
// One update with one entity in it.
EXPECT_EQ(1U, processor()->GetNumUpdateResponses());
EXPECT_EQ(1U, processor()->GetNthUpdateResponse(0).size());
const sync_pb::ModelTypeState& state = processor()->GetNthUpdateState(0);
EXPECT_EQ(kToken1, state.progress_marker().token());
UpdateResponseData update = processor()->GetNthUpdateResponse(0).at(0);
const EntityData& entity = update.entity.value();
EXPECT_FALSE(entity.id.empty());
EXPECT_EQ(kHash1, entity.client_tag_hash);
EXPECT_EQ(1, update.response_version);
EXPECT_EQ(ctime, entity.creation_time);
EXPECT_EQ(ctime, entity.modification_time);
EXPECT_EQ(kTag1, entity.non_unique_name);
EXPECT_FALSE(entity.is_deleted());
EXPECT_EQ(kTag1, entity.specifics.preference().name());
EXPECT_EQ(kValue1, entity.specifics.preference().value());
}
TEST_F(UssMigratorTest, MigrateMultiple) {
CreateTypeRoot();
SetProgressMarkerToken(kToken1);
InsertEntity(kTag1, kValue1);
InsertEntity(kTag2, kValue2);
InsertEntity(kTag3, kValue3);
ASSERT_TRUE(MigrateDirectoryData(kModelType, user_share(), worker()));
EXPECT_EQ(1U, processor()->GetNumUpdateResponses());
EXPECT_EQ(3U, processor()->GetNthUpdateResponse(0).size());
UpdateResponseDataList updates = processor()->GetNthUpdateResponse(0);
EXPECT_EQ(kTag1, updates.at(0).entity.value().specifics.preference().name());
EXPECT_EQ(kTag2, updates.at(1).entity.value().specifics.preference().name());
EXPECT_EQ(kTag3, updates.at(2).entity.value().specifics.preference().name());
}
TEST_F(UssMigratorTest, MigrateMultipleBatches) {
CreateTypeRoot();
SetProgressMarkerToken(kToken1);
InsertEntity(kTag1, kValue1);
InsertEntity(kTag2, kValue2);
InsertEntity(kTag3, kValue3);
ASSERT_TRUE(
MigrateDirectoryDataWithBatchSize(kModelType, user_share(), worker(), 2));
EXPECT_EQ(1U, processor()->GetNumUpdateResponses());
EXPECT_EQ(3U, processor()->GetNthUpdateResponse(0).size());
UpdateResponseDataList updates = processor()->GetNthUpdateResponse(0);
EXPECT_EQ(kTag1, updates.at(0).entity.value().specifics.preference().name());
EXPECT_EQ(kTag2, updates.at(1).entity.value().specifics.preference().name());
EXPECT_EQ(kTag3, updates.at(2).entity.value().specifics.preference().name());
}
TEST_F(UssMigratorTest, MigrateIgnoresTombstone) {
CreateTypeRoot();
SetProgressMarkerToken(kToken1);
DeleteEntity(kTag1);
ASSERT_TRUE(MigrateDirectoryData(kModelType, user_share(), worker()));
EXPECT_EQ(0, nudge_handler()->GetNumInitialDownloadNudges());
EXPECT_EQ(1U, processor()->GetNumUpdateResponses());
EXPECT_EQ(0U, processor()->GetNthUpdateResponse(0).size());
}
TEST_F(UssMigratorTest, MigrateZero) {
CreateTypeRoot();
SetProgressMarkerToken(kToken1);
ASSERT_TRUE(MigrateDirectoryData(kModelType, user_share(), worker()));
EXPECT_EQ(0, nudge_handler()->GetNumInitialDownloadNudges());
EXPECT_EQ(1U, processor()->GetNumUpdateResponses());
EXPECT_EQ(0U, processor()->GetNthUpdateResponse(0).size());
}
TEST_F(UssMigratorTest, MissingTypeRoot) {
EXPECT_EQ(0, nudge_handler()->GetNumInitialDownloadNudges());
ASSERT_FALSE(MigrateDirectoryData(kModelType, user_share(), worker()));
EXPECT_EQ(1, nudge_handler()->GetNumInitialDownloadNudges());
EXPECT_EQ(0U, processor()->GetNumUpdateResponses());
}
} // namespace syncer
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