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// Copyright 2015 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/internal_api/public/model_type_store_backend.h"
#include <utility>
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/leveldatabase/src/include/leveldb/env.h"
#include "third_party/leveldatabase/src/include/leveldb/write_batch.h"
namespace syncer_v2 {
class ModelTypeStoreBackendTest : public testing::Test {
public:
void SetUp() override {
in_memory_env_ = ModelTypeStoreBackend::CreateInMemoryEnv();
}
void TearDown() override { in_memory_env_.reset(); }
scoped_ptr<ModelTypeStoreBackend> CreateBackend() {
scoped_ptr<ModelTypeStoreBackend> backend(new ModelTypeStoreBackend());
std::string path;
in_memory_env_->GetTestDirectory(&path);
path += "/test_db";
ModelTypeStore::Result result = backend->Init(path, in_memory_env_.get());
EXPECT_EQ(ModelTypeStore::Result::SUCCESS, result);
return backend;
}
protected:
scoped_ptr<leveldb::Env> in_memory_env_;
};
// Test that after record is written to backend it can be read back even after
// backend is destroyed and recreated in the same environment.
TEST_F(ModelTypeStoreBackendTest, WriteThenRead) {
scoped_ptr<ModelTypeStoreBackend> backend = CreateBackend();
// Write record.
scoped_ptr<leveldb::WriteBatch> write_batch(new leveldb::WriteBatch());
write_batch->Put("prefix:id1", "data1");
ModelTypeStore::Result result =
backend->WriteModifications(std::move(write_batch));
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
// Read all records with prefix.
ModelTypeStore::RecordList record_list;
result = backend->ReadAllRecordsWithPrefix("prefix:", &record_list);
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ASSERT_EQ(1ul, record_list.size());
ASSERT_EQ("id1", record_list[0].id);
ASSERT_EQ("data1", record_list[0].value);
record_list.clear();
// Recreate backend and read all records with prefix.
backend = CreateBackend();
result = backend->ReadAllRecordsWithPrefix("prefix:", &record_list);
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ASSERT_EQ(1ul, record_list.size());
ASSERT_EQ("id1", record_list[0].id);
ASSERT_EQ("data1", record_list[0].value);
}
// Test that ReadAllRecordsWithPrefix correclty filters records by prefix.
TEST_F(ModelTypeStoreBackendTest, ReadAllRecordsWithPrefix) {
scoped_ptr<ModelTypeStoreBackend> backend = CreateBackend();
scoped_ptr<leveldb::WriteBatch> write_batch(new leveldb::WriteBatch());
write_batch->Put("prefix1:id1", "data1");
write_batch->Put("prefix2:id2", "data2");
ModelTypeStore::Result result =
backend->WriteModifications(std::move(write_batch));
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ModelTypeStore::RecordList record_list;
result = backend->ReadAllRecordsWithPrefix("prefix1:", &record_list);
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ASSERT_EQ(1UL, record_list.size());
ASSERT_EQ("id1", record_list[0].id);
ASSERT_EQ("data1", record_list[0].value);
}
// Test that deleted records are correctly marked as milling in results of
// ReadRecordsWithPrefix.
TEST_F(ModelTypeStoreBackendTest, ReadDeletedRecord) {
scoped_ptr<ModelTypeStoreBackend> backend = CreateBackend();
// Create records, ensure they are returned by ReadRecordsWithPrefix.
scoped_ptr<leveldb::WriteBatch> write_batch(new leveldb::WriteBatch());
write_batch->Put("prefix:id1", "data1");
write_batch->Put("prefix:id2", "data2");
ModelTypeStore::Result result =
backend->WriteModifications(std::move(write_batch));
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ModelTypeStore::IdList id_list;
ModelTypeStore::IdList missing_id_list;
ModelTypeStore::RecordList record_list;
id_list.push_back("id1");
id_list.push_back("id2");
result = backend->ReadRecordsWithPrefix("prefix:", id_list, &record_list,
&missing_id_list);
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ASSERT_EQ(2UL, record_list.size());
ASSERT_TRUE(missing_id_list.empty());
// Delete one record.
write_batch.reset(new leveldb::WriteBatch());
write_batch->Delete("prefix:id2");
result = backend->WriteModifications(std::move(write_batch));
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
// Ensure deleted record id is returned in missing_id_list.
record_list.clear();
missing_id_list.clear();
result = backend->ReadRecordsWithPrefix("prefix:", id_list, &record_list,
&missing_id_list);
ASSERT_EQ(ModelTypeStore::Result::SUCCESS, result);
ASSERT_EQ(1UL, record_list.size());
ASSERT_EQ("id1", record_list[0].id);
ASSERT_EQ(1UL, missing_id_list.size());
ASSERT_EQ("id2", missing_id_list[0]);
}
} // namespace syncer_v2
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