chromium/components/sync/model/client_tag_based_remote_update_handler_unittest.cc

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/sync/model/client_tag_based_remote_update_handler.h"

#include <utility>
#include <vector>

#include "base/functional/bind.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/protobuf_matchers.h"
#include "base/test/scoped_feature_list.h"
#include "components/sync/base/client_tag_hash.h"
#include "components/sync/base/deletion_origin.h"
#include "components/sync/base/features.h"
#include "components/sync/base/hash_util.h"
#include "components/sync/base/unique_position.h"
#include "components/sync/engine/commit_and_get_updates_types.h"
#include "components/sync/engine/data_type_activation_response.h"
#include "components/sync/engine/forwarding_data_type_processor.h"
#include "components/sync/model/conflict_resolution.h"
#include "components/sync/model/metadata_batch.h"
#include "components/sync/model/processor_entity.h"
#include "components/sync/model/processor_entity_tracker.h"
#include "components/sync/protocol/data_type_state.pb.h"
#include "components/sync/protocol/entity_metadata.pb.h"
#include "components/sync/protocol/entity_specifics.pb.h"
#include "components/sync/protocol/unique_position.pb.h"
#include "components/sync/test/fake_data_type_sync_bridge.h"
#include "components/sync/test/mock_data_type_local_change_processor.h"
#include "components/sync/test/mock_data_type_processor.h"
#include "components/sync/test/mock_data_type_worker.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace syncer {

namespace {

EqualsProto;
ElementsAre;
IsEmpty;
IsNull;
Not;
NotNull;

const char kKey1[] = …;
const char kKey2[] = …;
const char kValue1[] = …;
const char kValue2[] = …;

sync_pb::DataTypeState GenerateDataTypeState() { … }

std::unique_ptr<DataTypeActivationResponse> GenerateDataTypeActivationResponse(
    DataTypeProcessor* processor) { … }

ClientTagHash GetPrefHash(const std::string& key) { … }

ClientTagHash GetSharedTabGroupDataHash(const std::string& key) { … }

sync_pb::EntitySpecifics GeneratePrefSpecifics(const std::string& key,
                                               const std::string& value) { … }

sync_pb::EntitySpecifics GenerateSharedTabGroupSpecifics(
    const std::string& guid) { … }

sync_pb::EntitySpecifics GenerateSharedTabGroupTabSpecifics(
    const std::string& guid,
    sync_pb::UniquePosition unique_position) { … }

sync_pb::UniquePosition ExtractUniquePositionFromSharedTab(
    const sync_pb::EntitySpecifics& specifics) { … }

class ClientTagBasedRemoteUpdateHandlerTest : public ::testing::Test { … };

// Thoroughly tests the data generated by a server item creation.
TEST_F(ClientTagBasedRemoteUpdateHandlerTest, ShouldProcessRemoteCreation) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldIgnoreRemoteUpdatesForRootNodes) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldIgnoreRemoteUpdatesWithUnexpectedClientTagHash) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldNotClearTrimmedSpecificsOnNoopRemoteUpdates) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldUpdateMetadataOnNoopRemoteUpdates) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldIgnoreReflectionsOnRemoteUpdates) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest, ShouldProcessRemoteUpdates) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest, ShouldProcessRemoteDeletion) { … }

// Deletes an item we've never seen before. Should have no effect and not crash.
TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldIgnoreRemoteDeletionOfUnknownEntity) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldNotTreatMatchingChangesAsConflict) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldPreferRemoteNonDeletionOverLocalTombstoneOnConflict) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldPreferRemoteNonDeletionOverLocalEncryptionOnConflict) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldPreferLocalChangeOverRemoteEncryptionOnConflict) { … }

// Test for the case from crbug.com/1046309. Tests that there is no redundant
// deletion when processing remote deletion with different encryption key.
TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldNotIssueDeletionUponRemoteDeletion) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldNotProcessInvalidRemoteCreationWithInvalidStorageKey) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest,
       ShouldIgnoreInvalidRemoteCreation) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest, ShouldIgnoreInvalidRemoteUpdate) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerTest, ShouldLogFreshnessToUma) { … }

class ClientTagBasedRemoteUpdateHandlerForSharedTest
    : public ClientTagBasedRemoteUpdateHandlerTest { … };

TEST_F(ClientTagBasedRemoteUpdateHandlerForSharedTest,
       ShouldClearEntitiesForInactiveCollaborations) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerForSharedTest,
       ShouldCreateDeletionForActiveCollaborationMembership) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerForSharedTest,
       ShouldProcessUniquePositionForRemoteCreation) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerForSharedTest,
       ShouldProcessUniquePositionForRemoteUpdate) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerForSharedTest,
       ShouldPreferRemoteUniquePositionOverLocalDeletion) { … }

TEST_F(ClientTagBasedRemoteUpdateHandlerForSharedTest,
       ShouldPreferRemoteUniquePositionOnConflict) { … }

}  // namespace

}  // namespace syncer