// Copyright 2018 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.

#ifndef COMPONENTS_SYNC_TEST_TEST_MATCHERS_H_
#define COMPONENTS_SYNC_TEST_TEST_MATCHERS_H_

#include <string>
#include <vector>

#include "components/sync/model/metadata_batch.h"
#include "components/sync/protocol/model_type_state.pb.h"
#include "testing/gmock/include/gmock/gmock.h"

namespace syncer {

// Matcher for base::Optional<ModelError>: verifies that it contains no error.
MATCHER(NoModelError, "") {
  if (arg.has_value()) {
    *result_listener << "which represents error: " << arg->ToString();
    return false;
  }
  return true;
}

// Matcher for MetadataBatch: verifies that it is empty (i.e. contains neither
// entity metadata nor global model state.
MATCHER(IsEmptyMetadataBatch, "") {
  return arg != nullptr &&
         sync_pb::ModelTypeState().SerializeAsString() ==
             arg->GetModelTypeState().SerializeAsString() &&
         arg->TakeAllMetadata().empty();
}

// Matcher for MetadataBatch: general purpose verification given two matchers,
// of type Matcher<ModelTypeState> and Matcher<EntityMetadataMap> respectively.
MATCHER_P2(MetadataBatchContains, state, entities, "") {
  if (arg == nullptr) {
    *result_listener << "which is null";
    return false;
  }
  if (!ExplainMatchResult(testing::Matcher<sync_pb::ModelTypeState>(state),
                          arg->GetModelTypeState(), result_listener)) {
    return false;
  }
  return ExplainMatchResult(testing::Matcher<EntityMetadataMap>(entities),
                            arg->TakeAllMetadata(), result_listener);
}

// Matcher for sync_pb::ModelTypeState: verifies that field
// |encryption_key_name| is equal to the provided string |expected_key_name|.
MATCHER_P(HasEncryptionKeyName, expected_key_name, "") {
  return arg.encryption_key_name() == expected_key_name;
}

// Matcher for sync_pb::ModelTypeState: verifies that initial sync is done.
MATCHER(HasInitialSyncDone, "") {
  return arg.initial_sync_done();
}

}  // namespace syncer

#endif  // COMPONENTS_SYNC_TEST_TEST_MATCHERS_H_