Nelze vybrat více než 25 témat
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247 řádky
8.7 KiB
247 řádky
8.7 KiB
#include "gtest/gtest.h"
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#include "db/NewDB.h" // NewDB 的头文件
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#include "leveldb/env.h"
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#include "leveldb/db.h"
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#include <iostream>
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#include <random>
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#include <ctime>
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using namespace leveldb;
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Status OpenDB(std::string dbName, NewDB** db) {
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Options options = Options();
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options.create_if_missing = true;
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return NewDB::Open(options, dbName, db);
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}
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// 全局的随机数引擎
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std::default_random_engine rng;
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// 设置随机种子
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void SetGlobalSeed(unsigned seed) {
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rng.seed(seed);
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}
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// 生成随机字符串
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std::string GenerateRandomString(size_t length) {
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static const char alphanum[] =
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"0123456789"
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz";
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std::uniform_int_distribution<int> dist(0, sizeof(alphanum) - 2);
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std::string str(length, 0);
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for (size_t i = 0; i < length; ++i) {
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str[i] = alphanum[dist(rng)];
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}
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return str;
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}
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std::string testdbname = "testdb2";
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TEST(TestNewDB, BulkCreateIndexAndQueryTest) {
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// 创建 NewDB 实例
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NewDB* db;
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ASSERT_TRUE(OpenDB(testdbname, &db).ok());
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// 批量插入数据
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std::vector<std::pair<std::string, FieldArray>> bulk_data;
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const int num_records = 100;
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for (int i = 0; i < num_records; ++i) {
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std::string key = "k_" + GenerateRandomString(5);
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FieldArray fields = {
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{"name", GenerateRandomString(5)},
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{"address", GenerateRandomString(15)},
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{"phone", GenerateRandomString(11)}
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};
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bulk_data.emplace_back(key, fields);
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ASSERT_TRUE(db->Put_fields(WriteOptions(), key, fields).ok());
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}
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// 创建索引字段
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db->CreateIndexOnField("address");
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// 验证插入的数据和索引
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for (const auto& [key, fields] : bulk_data) {
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// 获取并验证字段数据
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FieldArray retrieved_fields;
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ASSERT_TRUE(db->Get_fields(ReadOptions(), Slice(key), &retrieved_fields).ok());
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EXPECT_EQ(retrieved_fields.size(), fields.size());
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// 验证插入的每个字段
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for (size_t i = 0; i < fields.size(); ++i) {
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EXPECT_EQ(fields[i].first, retrieved_fields[i].first); // 字段名
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EXPECT_EQ(fields[i].second, retrieved_fields[i].second); // 字段值
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}
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// 验证索引是否能正确找到对应的键
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Field field_to_query{"address", fields[1].second}; // 使用 address 字段进行查询
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std::vector<std::string> matching_keys = db->QueryByIndex(field_to_query);
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EXPECT_FALSE(matching_keys.empty()); // 应该能找到对应的键
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EXPECT_NE(std::find(matching_keys.begin(), matching_keys.end(), key), matching_keys.end());
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}
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delete db;
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}
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// 测试创建二级索引后批量插入、以及删除索引后的查询
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TEST(TestNewDB, BulkPutFieldsAndDeleteIndexTest) {
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// 创建 NewDB 实例
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NewDB* db;
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ASSERT_TRUE(OpenDB(testdbname, &db).ok());
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db->CreateIndexOnField("address");
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// 批量插入数据
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std::vector<std::pair<std::string, FieldArray>> bulk_data;
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const int num_records = 100;
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for (int i = 0; i < num_records; ++i) {
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std::string key = "k_" + GenerateRandomString(5);
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FieldArray fields = {
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{"name", GenerateRandomString(5)},
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{"address", GenerateRandomString(15)},
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{"phone", GenerateRandomString(11)}
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};
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bulk_data.emplace_back(key, fields);
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ASSERT_TRUE(db->Put_fields(WriteOptions(), key, fields).ok());
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}
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// 验证插入的数据和索引
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for (const auto& [key, fields] : bulk_data) {
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// 获取并验证字段数据
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FieldArray retrieved_fields;
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ASSERT_TRUE(db->Get_fields(ReadOptions(), Slice(key), &retrieved_fields).ok());
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EXPECT_EQ(retrieved_fields.size(), fields.size());
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// 验证插入的每个字段
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for (size_t i = 0; i < fields.size(); ++i) {
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EXPECT_EQ(fields[i].first, retrieved_fields[i].first); // 字段名
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EXPECT_EQ(fields[i].second, retrieved_fields[i].second); // 字段值
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}
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// 验证索引是否能正确找到对应的键
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Field field_to_query{"address", fields[1].second}; // 使用 address 字段进行查询
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std::vector<std::string> matching_keys = db->QueryByIndex(field_to_query);
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EXPECT_FALSE(matching_keys.empty()); // 应该能找到对应的键
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EXPECT_NE(std::find(matching_keys.begin(), matching_keys.end(), key), matching_keys.end());
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}
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// 删除部分数据
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const int num_updates = 20;
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for (int i = 0; i < num_updates; ++i) {
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auto& [key, fields] = bulk_data[i];
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ASSERT_TRUE(db->Delete(WriteOptions(), key));
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}
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for (int i = 0; i < num_updates; ++i) {
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Field query_field{"address", bulk_data[i].second[1].second};
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std::vector<std::string> matching_keys = db->QueryByIndex(query_field);
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EXPECT_TRUE(matching_keys.empty());
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}
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// 删除索引
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ASSERT_TRUE(db->DeleteIndex("address"));
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// 验证删除索引后无法再通过索引查询到数据
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for (const auto& [key, fields] : bulk_data) {
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Field field_to_query{"address", fields[1].second}; // 使用 address 字段进行查询
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std::vector<std::string> matching_keys = db->QueryByIndex(field_to_query);
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EXPECT_TRUE(matching_keys.empty()); // 索引已被删除，应该找不到任何匹配的键
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}
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delete db;
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}
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TEST(TestNewDB, UpdateFieldsAndQueryIndexTest) {
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// 创建 NewDB 实例
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NewDB* db;
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ASSERT_TRUE(OpenDB(testdbname, &db).ok());
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// 创建索引字段
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ASSERT_TRUE(db->CreateIndexOnField("address"));
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// 批量插入数据
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const int num_records = 100;
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std::vector<std::pair<std::string, FieldArray>> initial_bulk_data;
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for (int i = 0; i < num_records; ++i) {
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std::string key = "k_" + GenerateRandomString(5);
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FieldArray fields = {
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{"name", GenerateRandomString(5)},
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{"address", GenerateRandomString(15)},
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{"phone", GenerateRandomString(11)}
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};
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initial_bulk_data.emplace_back(key, fields);
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ASSERT_TRUE(db->Put_fields(WriteOptions(), key, fields).ok());
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}
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// 验证初始数据的索引查询
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for (const auto& [key, fields] : initial_bulk_data) {
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Field query_field{"address", fields[1].second}; // 使用 address 字段进行查询
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std::vector<std::string> matching_keys = db->QueryByIndex(query_field);
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ASSERT_FALSE(matching_keys.empty()); // 应该能找到对应的键
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EXPECT_NE(std::find(matching_keys.begin(), matching_keys.end(), key), matching_keys.end());
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}
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// 更新部分数据
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const int num_updates = 20;
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std::vector<std::pair<std::string, FieldArray>> updated_bulk_data;
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for (int i = 0; i < num_updates; ++i) {
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auto& [key, fields] = initial_bulk_data[i];
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FieldArray updated_fields = {
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{"name", fields[0].second},
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{"address", GenerateRandomString(15)}, // 更新 address
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{"phone", fields[2].second}
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};
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updated_bulk_data.emplace_back(key, updated_fields);
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ASSERT_TRUE(db->Put_fields(WriteOptions(), key, updated_fields).ok());
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}
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// 验证更新后的数据和索引
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for (const auto& [key, updated_fields] : updated_bulk_data) {
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// 获取并验证字段数据
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FieldArray retrieved_fields;
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ASSERT_TRUE(db->Get_fields(ReadOptions(), Slice(key), &retrieved_fields).ok());
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EXPECT_EQ(retrieved_fields.size(), updated_fields.size());
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// 验证插入的每个字段
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for (size_t i = 0; i < updated_fields.size(); ++i) {
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EXPECT_EQ(updated_fields[i].first, retrieved_fields[i].first); // 字段名
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EXPECT_EQ(updated_fields[i].second, retrieved_fields[i].second); // 字段值
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}
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// 验证新的 address 字段值存在于索引中
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Field query_field_new{"address", updated_fields[1].second};
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std::vector<std::string> matching_keys_new = db->QueryByIndex(query_field_new);
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ASSERT_FALSE(matching_keys_new.empty()); // 新地址应该能找到对应的键
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EXPECT_NE(std::find(matching_keys_new.begin(), matching_keys_new.end(), key), matching_keys_new.end());
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}
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for (int i = 0; i < num_updates; ++i) {
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// 验证旧的 address 字段值不再存在于索引中
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Field query_field_old{"address", initial_bulk_data[i].second[1].second};
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std::vector<std::string> matching_keys_old = db->QueryByIndex(query_field_old);
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EXPECT_TRUE(matching_keys_old.empty()); // 旧地址不应该再找到对应的键
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}
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delete db;
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}
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int main(int argc, char** argv) {
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// 设置全局随机种子
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SetGlobalSeed(static_cast<unsigned>(time(nullptr)));
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testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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