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164 lines
5.4 KiB
164 lines
5.4 KiB
#include <chrono>
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#include <iomanip>
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#include <iostream>
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#include <leveldb/db.h>
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#include <leveldb/options.h>
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#include <numeric>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "leveldb/env.h"
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#include "gtest/gtest.h"
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using namespace leveldb;
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// 根据字段值查找所有包含该字段的 key，遍历
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std::vector<std::string> FindKeysByField(leveldb::DB* db, const Field& field) {
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std::vector<std::string> keys;
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leveldb::Iterator* it = db->NewIterator(leveldb::ReadOptions());
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for (it->SeekToFirst(); it->Valid() ; it->Next()) {
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std::string key = it->key().ToString();
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FieldArray fields;
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db->Get_Fields(leveldb::ReadOptions(), key, fields);
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for (const auto& f : fields) {
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if (f.name == field.name && f.value == field.value) {
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keys.push_back(key);
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break; // 假设每个key中每个字段值唯一
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}
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}
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}
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delete it;
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return keys;
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}
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Status OpenDB(std::string dbName, DB** db) {
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Options options;
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options.create_if_missing = true;
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return DB::Open(options, dbName, db);
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}
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// 吞吐量测试函数
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void TestThroughput(leveldb::DB* db, int num_operations) {
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WriteOptions writeOptions;
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auto start_time = std::chrono::steady_clock::now();
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for (int i = 0; i < num_operations; ++i) {
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std::string key = "key_" + std::to_string(i);
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FieldArray fields = {{"name", "Customer" + std::to_string(i)}, {"address", "Address" + std::to_string(i)}, {"phone", "1234567890"}};
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db->Put_Fields(writeOptions, key, fields);
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}
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auto end_time = std::chrono::steady_clock::now();
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auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end_time - start_time).count();
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std::cout << "Throughput: " << num_operations * 1000 / duration << " OPS" << std::endl;
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}
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// 延迟测试函数
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void TestLatency(leveldb::DB* db, int num_operations, std::vector<int64_t>& lat_res) {
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WriteOptions writeOptions;
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int64_t latency = 0;
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auto end_time = std::chrono::steady_clock::now();
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auto last_time = end_time;
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for (int i = 0; i < num_operations; ++i) {
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// 执行写入操作
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std::string key = "key_" + std::to_string(i);
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FieldArray fields = {{"name", "Customer" + std::to_string(i)}, {"address", "Address" + std::to_string(i)}, {"phone", "1234567890"}};
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db->Put_Fields(writeOptions, key, fields);
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db->Get_Fields(leveldb::ReadOptions(), key, fields);
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end_time = std::chrono::steady_clock::now();
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latency = std::chrono::duration_cast<std::chrono::milliseconds>(
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end_time - last_time).count();
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last_time = end_time;
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lat_res.emplace_back(latency);
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}
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// 输出延迟统计信息（可选）
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double avg_latency = std::accumulate(lat_res.begin(), lat_res.end(), 0.0) / lat_res.size();
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std::cout << "Average Latency: " << std::fixed << std::setprecision(2) << avg_latency << " ms" << std::endl;
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std::cout << "Max Latency: " << *std::max_element(lat_res.begin(), lat_res.end()) << " ms" << std::endl;
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std::cout << "Min Latency: " << *std::min_element(lat_res.begin(), lat_res.end()) << " ms" << std::endl;
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}
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TEST(TestSchema, Basic) {
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DB* db;
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WriteOptions writeOptions;
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ReadOptions readOptions;
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if (!OpenDB("testdb", &db).ok()) {
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std::cerr << "open db failed" << std::endl;
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abort();
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}
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// std::string key = "key";
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std::string key0 = "k_0";
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std::string key1 = "k_1";
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std::string key2 = "k_2";
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std::string key3 = "k_3";
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// std::string value = "value";
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FieldArray fields0 = {{"name", "wxf"}};
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FieldArray fields1 = {
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{"name", "Customer1"},
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{"address", "IVhzIApeRb"},
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{"phone", "25-989-741-2988"}
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};
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FieldArray fields2 = {
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{"name", "Customer1"},
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{"address", "ecnu"},
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{"phone", "123456789"}
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};
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FieldArray fields3 = {
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{"name", "Customer2"},
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{"address", "ecnu"},
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{"phone", "11111"}
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};
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// db->Put(writeOptions, key, value);
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// std::cout << "put_value: " << value << std::endl;
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db->Put_Fields(leveldb::WriteOptions(), key0, fields0);
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db->Put_Fields(leveldb::WriteOptions(), key1, fields1);
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db->Put_Fields(leveldb::WriteOptions(), key2, fields2);
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db->Put_Fields(leveldb::WriteOptions(), key3, fields3);
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// std::string value_ret;
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// db->Get(readOptions, key, &value_ret);
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// std::cout << "get_value: " << value_ret << std::endl;
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// 读取并反序列化
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FieldArray fields_ret_0;
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FieldArray fields_ret_1;
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db->Get_Fields(leveldb::ReadOptions(), key0, fields_ret_0);
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db->Get_Fields(leveldb::ReadOptions(), key1, fields_ret_1);
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// 检查反序列化结果
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ASSERT_EQ(fields_ret_0.size(), fields0.size());
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for (size_t i = 0; i < fields_ret_0.size(); ++i) {
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ASSERT_EQ(fields_ret_0[i].name, fields0[i].name);
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ASSERT_EQ(fields_ret_0[i].value, fields0[i].value);
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}
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ASSERT_EQ(fields_ret_1.size(), fields1.size());
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for (size_t i = 0; i < fields_ret_1.size(); ++i) {
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ASSERT_EQ(fields_ret_1[i].name, fields1[i].name);
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// ASSERT_EQ(fields_ret_1[i].value, fields1[i].value);
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}
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// 测试查找功能
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Field query_field = {"name", "Customer2"};
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std::vector<std::string> found_keys = FindKeysByField(db, query_field);
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std::cout << "找到的key有：" << found_keys.size() << "个" << std::endl;
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/*// 吞吐量测试
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TestThroughput(db, 10000);*/
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/* // 延迟测试
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std::vector<int64_t> latency_results;
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TestLatency(db, 1000, latency_results);*/
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// 关闭数据库
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delete db;
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}
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int main(int argc, char** argv) {
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testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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