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// Copyright 2014 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_driver/shared_change_processor.h"
#include <cstddef>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/compiler_specific.h"
#include "base/location.h"
#include "base/single_thread_task_runner.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread.h"
#include "components/sync_driver/data_type_error_handler_mock.h"
#include "components/sync_driver/generic_change_processor.h"
#include "components/sync_driver/generic_change_processor_factory.h"
#include "components/sync_driver/sync_api_component_factory.h"
#include "sync/api/attachments/attachment_id.h"
#include "sync/api/attachments/attachment_store.h"
#include "sync/api/fake_syncable_service.h"
#include "sync/internal_api/public/attachments/attachment_service_impl.h"
#include "sync/internal_api/public/base/model_type.h"
#include "sync/internal_api/public/test/test_user_share.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace sync_driver {
namespace {
using ::testing::NiceMock;
using ::testing::StrictMock;
class SyncSharedChangeProcessorTest :
public testing::Test,
public SyncApiComponentFactory {
public:
SyncSharedChangeProcessorTest()
: backend_thread_("dbthread"),
did_connect_(false),
has_attachment_service_(false) {}
~SyncSharedChangeProcessorTest() override {
EXPECT_FALSE(db_syncable_service_.get());
}
base::WeakPtr<syncer::SyncableService> GetSyncableServiceForType(
syncer::ModelType type) override {
return db_syncable_service_->AsWeakPtr();
}
scoped_ptr<syncer::AttachmentService> CreateAttachmentService(
scoped_ptr<syncer::AttachmentStoreForSync> attachment_store,
const syncer::UserShare& user_share,
const std::string& store_birthday,
syncer::ModelType model_type,
syncer::AttachmentService::Delegate* delegate) override {
return syncer::AttachmentServiceImpl::CreateForTest();
}
protected:
void SetUp() override {
test_user_share_.SetUp();
shared_change_processor_ = new SharedChangeProcessor();
ASSERT_TRUE(backend_thread_.Start());
ASSERT_TRUE(backend_thread_.task_runner()->PostTask(
FROM_HERE,
base::Bind(&SyncSharedChangeProcessorTest::SetUpDBSyncableService,
base::Unretained(this))));
}
void TearDown() override {
EXPECT_TRUE(backend_thread_.task_runner()->PostTask(
FROM_HERE,
base::Bind(&SyncSharedChangeProcessorTest::TearDownDBSyncableService,
base::Unretained(this))));
// This must happen before the DB thread is stopped since
// |shared_change_processor_| may post tasks to delete its members
// on the correct thread.
//
// TODO(akalin): Write deterministic tests for the destruction of
// |shared_change_processor_| on the UI and DB threads.
shared_change_processor_ = NULL;
backend_thread_.Stop();
// Note: Stop() joins the threads, and that barrier prevents this read
// from being moved (e.g by compiler optimization) in such a way that it
// would race with the write in ConnectOnDBThread (because by this time,
// everything that could have run on |backend_thread_| has done so).
ASSERT_TRUE(did_connect_);
test_user_share_.TearDown();
}
// Connect |shared_change_processor_| on the DB thread.
void Connect() {
EXPECT_TRUE(backend_thread_.task_runner()->PostTask(
FROM_HERE,
base::Bind(&SyncSharedChangeProcessorTest::ConnectOnDBThread,
base::Unretained(this), shared_change_processor_)));
}
void SetAttachmentStore() {
EXPECT_TRUE(backend_thread_.task_runner()->PostTask(
FROM_HERE,
base::Bind(&SyncSharedChangeProcessorTest::SetAttachmentStoreOnDBThread,
base::Unretained(this))));
}
bool HasAttachmentService() {
base::WaitableEvent event(false, false);
EXPECT_TRUE(backend_thread_.task_runner()->PostTask(
FROM_HERE,
base::Bind(
&SyncSharedChangeProcessorTest::CheckAttachmentServiceOnDBThread,
base::Unretained(this), base::Unretained(&event))));
event.Wait();
return has_attachment_service_;
}
private:
// Used by SetUp().
void SetUpDBSyncableService() {
DCHECK(backend_thread_.task_runner()->BelongsToCurrentThread());
DCHECK(!db_syncable_service_.get());
db_syncable_service_.reset(new syncer::FakeSyncableService());
}
// Used by TearDown().
void TearDownDBSyncableService() {
DCHECK(backend_thread_.task_runner()->BelongsToCurrentThread());
DCHECK(db_syncable_service_.get());
db_syncable_service_.reset();
}
void SetAttachmentStoreOnDBThread() {
DCHECK(backend_thread_.task_runner()->BelongsToCurrentThread());
DCHECK(db_syncable_service_.get());
db_syncable_service_->set_attachment_store(
syncer::AttachmentStore::CreateInMemoryStore());
}
// Used by Connect(). The SharedChangeProcessor is passed in
// because we modify |shared_change_processor_| on the main thread
// (in TearDown()).
void ConnectOnDBThread(
const scoped_refptr<SharedChangeProcessor>& shared_change_processor) {
DCHECK(backend_thread_.task_runner()->BelongsToCurrentThread());
EXPECT_TRUE(shared_change_processor->Connect(
this, &processor_factory_, test_user_share_.user_share(),
&error_handler_, syncer::AUTOFILL,
base::WeakPtr<syncer::SyncMergeResult>()));
did_connect_ = true;
}
void CheckAttachmentServiceOnDBThread(base::WaitableEvent* event) {
DCHECK(backend_thread_.task_runner()->BelongsToCurrentThread());
DCHECK(db_syncable_service_.get());
has_attachment_service_ = !!db_syncable_service_->attachment_service();
event->Signal();
}
base::MessageLoop frontend_loop_;
base::Thread backend_thread_;
syncer::TestUserShare test_user_share_;
scoped_refptr<SharedChangeProcessor> shared_change_processor_;
StrictMock<DataTypeErrorHandlerMock> error_handler_;
GenericChangeProcessorFactory processor_factory_;
bool did_connect_;
bool has_attachment_service_;
// Used only on DB thread.
scoped_ptr<syncer::FakeSyncableService> db_syncable_service_;
};
// Simply connect the shared change processor. It should succeed, and
// nothing further should happen.
TEST_F(SyncSharedChangeProcessorTest, Basic) {
Connect();
}
// Connect the shared change processor to a syncable service with
// AttachmentStore. Verify that shared change processor implementation
// creates AttachmentService and passes it back to the syncable service.
TEST_F(SyncSharedChangeProcessorTest, ConnectWithAttachmentStore) {
SetAttachmentStore();
Connect();
EXPECT_TRUE(HasAttachmentService());
}
} // namespace
} // namespace sync_driver
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