diff --git a/.gitignore b/.gitignore
index 145d65b..e7e358f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@
 /.vscode
 /maintenance/test/data
 .clang-format
-/frontend/node_modules
\ No newline at end of file
+/frontend/node_modules
+/build
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e69de29..bb175b2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.15.2)
+project(BookStore)
+file(GLOB_RECURSE main_src backend/src/*.cpp)
+include_directories(${PROJECT_SOURCE_DIR}/backend/include)
+add_executable(code ${main_src})
+add_subdirectory(maintenance/test)
+include(maintenance/test/ctest_config)
\ No newline at end of file
diff --git a/backend/include/builtin-cli.h b/backend/include/builtin-cli.h
new file mode 100644
index 0000000..e69de29
diff --git a/backend/include/database.h b/backend/include/database.h
new file mode 100644
index 0000000..e69de29
diff --git a/backend/include/drivearray.h b/backend/include/drivearray.h
new file mode 100644
index 0000000..e69de29
diff --git a/backend/include/engine.h b/backend/include/engine.h
new file mode 100644
index 0000000..e69de29
diff --git a/backend/include/schedule.h b/backend/include/schedule.h
new file mode 100644
index 0000000..e69de29
diff --git a/backend/src/builtin-cli.cpp b/backend/src/builtin-cli.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/backend/src/database.cpp b/backend/src/database.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/backend/src/drivearray.cpp b/backend/src/drivearray.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/backend/src/engine.cpp b/backend/src/engine.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/backend/src/main.cpp b/backend/src/main.cpp
new file mode 100644
index 0000000..c3aeba4
--- /dev/null
+++ b/backend/src/main.cpp
@@ -0,0 +1 @@
+int main() { return 0; }
\ No newline at end of file
diff --git a/backend/src/schedule.cpp b/backend/src/schedule.cpp
new file mode 100644
index 0000000..e69de29
diff --git a/docs/develop/总体设计文档.md b/docs/develop/总体设计文档.md
index 9aec09e..537cca4 100644
--- a/docs/develop/总体设计文档.md
+++ b/docs/develop/总体设计文档.md
@@ -43,7 +43,7 @@ memoryriver类维护一个缓存，简单地缓存高频访问和连续访问；
 ### 引擎模块
 具体执行业务，一次请求对应且只对应一次引擎模块API调用，支持并行（API阻塞但可同时运行）。当API入口函数被调用后，执行相关具体操作（包括会话管理），然后返回响应。
 
-### 通信与调度模块
+### 调度模块
 负责对外提供文本模式的交互，以及维护请求级的并行。从流`request`读取文本格式的命令，并把内部数据格式的响应翻译成文本格式，向引擎模块发送请求（调用引擎模块对外提供的API），并把响应返回到流`response`。支持条件允许时的并行：
 - 输入子模块从`request`读取请求，打上时间戳，分独占式请求和可并行请求按时间戳顺序分批处理。处理一个请求时，启动一个工作线程调用翻译子模块。同一个会话的请求不可并行，把`std::thread`move进相应的该会话的工作线程句柄队列，下一个join前一个。成批执行可并行请求时，启动完当前批次所有工作线程后join每个session的最后一个工作线程，结束之后就可以执行下一批了。为了在服务模式下处理时有时无的请求，两个流在读取时是阻塞的（自己封装一个，用`std::condition_variable`通讯），并且读一个处理一个，碰到“不属于自己批次”的东西才算一批结束。
 - 翻译子模块(入口函数本身阻塞)join完同一个session的上一个请求后，向引擎模块API发送请求，得到响应后把响应数据传给输出子模块的调用接口(阻塞但可并行，处理部分同时运行，上锁后直接输出到`response`，输出本身不同时进行)。
diff --git a/maintenance/test/CMakeLists.txt b/maintenance/test/CMakeLists.txt
new file mode 100644
index 0000000..eadfea1
--- /dev/null
+++ b/maintenance/test/CMakeLists.txt
@@ -0,0 +1,7 @@
+set(PROJECT_NAME ${CMAKE_PROJECT_NAME})
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_FLAGS "-O2")
+set(ENV{MAKEFLAGS} "-j16")
+include_directories(${PROJECT_SOURCE_DIR}/external)
+add_executable(test-core test-core.cpp)
+target_precompile_headers(test-core PUBLIC ${PROJECT_SOURCE_DIR}/external/clipp/clipp.h ${PROJECT_SOURCE_DIR}/external/json/json.hpp)
\ No newline at end of file
diff --git a/maintenance/test/config.json b/maintenance/test/config.json
new file mode 100644
index 0000000..702b1cd
--- /dev/null
+++ b/maintenance/test/config.json
@@ -0,0 +1,8 @@
+{
+  "StatusInterpreter":{"0":"OK","1":"Wrong Answer","139":"Segmentation fault","137":"(Killed) maybe Time Limit Error"},
+  "Cases":
+  [
+    {"command":"cd /workspaces/BH-Bookstore-2023 && timeout -s 9 1s build/code <test/testcases/basic-testcases/test0.in >/tmp/B0.out && diff -u /tmp/B0.out test/testcases/basic-testcases/test0.out >/tmp/diff_B0","uid":"#0","tid":"/1/0"},
+    {"command":"cd /workspaces/BH-Bookstore-2023 && timeout -s 9 3s build/code <test/testcases/bigint-testcases/BigIntegerTest0.in >/tmp/I0.out && diff -u /tmp/I0.out test/testcases/bigint-testcases/BigIntegerTest0.out >/tmp/diff_I0","uid":"#14","tid":"/2/0"},
+  ]
+}
\ No newline at end of file
diff --git a/maintenance/test/ctest_config b/maintenance/test/ctest_config
new file mode 100644
index 0000000..e69de29
diff --git a/maintenance/test/test-core.cpp b/maintenance/test/test-core.cpp
new file mode 100644
index 0000000..a4f0b1e
--- /dev/null
+++ b/maintenance/test/test-core.cpp
@@ -0,0 +1,122 @@
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include "clipp/clipp.h"
+#include "json/json.hpp"
+std::string getDirectory(const std::string &filepath) {
+  size_t found = filepath.find_last_of("/\\");
+  return filepath.substr(0, found);
+}
+#define DeEscape std::string
+int main(int argc, char *argv[]) {
+  bool continuous = false;
+  bool test_all = false;
+  bool test_listed_cases = false;
+  std::vector<std::string> listed_cases;
+  std::string filePath(__FILE__);
+  std::string directoryPath = getDirectory(filePath);
+  std::string config_file = directoryPath + "/config.json";
+  bool use_custoem_config = false;
+  std::string new_config = "";
+  bool test_sub_tree = false;
+  std::string sub_tree;
+  bool read_lists_from_stdin = false;
+  bool read_lists_from_file = false;
+  std::string list_file_path;
+  // clang-format off
+  auto cli=(
+    clipp::option("--config").set(config_file).doc("config file path") & clipp::value("config file path",config_file),
+    clipp::option("-c","--continuous").set(continuous).doc("continuous mode"),
+    (
+      clipp::required("-a","--all").set(test_all).doc("test all")|
+      (clipp::required("-s","--subtree").set(test_sub_tree).doc("test subtree") & clipp::value("subtree",sub_tree))|
+      (clipp::required("-l","--list").set(test_listed_cases).doc("test listed cases") & clipp::values("cases",listed_cases))|
+      (clipp::required("-i","--stdin").set(read_lists_from_stdin).doc("read test list from stdin"))|
+      (clipp::required("-f","--filelist").set(read_lists_from_file).doc("read test list from file") & clipp::value("file",list_file_path))
+    )
+  );
+  // clang-format on
+  if (!clipp::parse(argc, argv, cli)) {
+    std::cout << clipp::make_man_page(cli, argv[0]);
+    return 0;
+  }
+  if (use_custoem_config) config_file = new_config;
+  using json = nlohmann::json;
+  std::ifstream conf(config_file);
+  json config = json::parse(conf);
+  std::unordered_map<std::string, std::string> index;
+  for (int i = 0; i < config["Cases"].size(); i++) {
+    index[DeEscape(config["Cases"][i]["tid"])] =
+        DeEscape(config["Cases"][i]["command"]);
+    index[DeEscape(config["Cases"][i]["uid"])] =
+        DeEscape(config["Cases"][i]["command"]);
+  }
+  if (test_all) {
+    listed_cases.clear();
+    for (int i = 0; i < config["Cases"].size(); i++) {
+      listed_cases.push_back(DeEscape(config["Cases"][i]["tid"]));
+    }
+  } else if (test_sub_tree) {
+    listed_cases.clear();
+    for (int i = 0; i < config["Cases"].size(); i++) {
+      if (DeEscape(config["Cases"][i]["tid"]).find(sub_tree) == 0 &&
+          (DeEscape(config["Cases"][i]["tid"]).length() == sub_tree.length() ||
+           DeEscape(config["Cases"][i]["tid"])[sub_tree.length()] == '/')) {
+        listed_cases.push_back(DeEscape(config["Cases"][i]["tid"]));
+      }
+    }
+  } else if (read_lists_from_stdin) {
+    listed_cases.clear();
+    std::string line;
+    while (std::getline(std::cin, line)) {
+      listed_cases.push_back(line);
+    }
+  } else if (read_lists_from_file) {
+    listed_cases.clear();
+    std::ifstream list_file(list_file_path);
+    std::string line;
+    while (std::getline(list_file, line)) {
+      listed_cases.push_back(line);
+    }
+  } else if (!test_listed_cases)
+    throw std::runtime_error("No test cases specified");
+  int total_cases = 0, total_passed = 0;
+  for (int i = 0; i < listed_cases.size(); i++) {
+    std::cerr << "Testing " << listed_cases[i] << std::endl;
+    if (index.find(listed_cases[i]) == index.end()) {
+      std::cerr << "Test " << listed_cases[i] << " not found" << std::endl;
+      std::cerr << '\n' << std::endl;
+      continue;
+    }
+    std::cerr << "Command = " << index[listed_cases[i]] << std::endl;
+    int status = system(index[listed_cases[i]].c_str()) / 256;
+    total_cases++;
+    if (status == 0) total_passed++;
+    if (status == 0) {
+      std::cerr << "Test " << listed_cases[i] << " passed" << std::endl;
+    } else {
+      std::cerr << "Test " << listed_cases[i] << " failed" << std::endl;
+      std::cerr << "status code = " << status << std::endl;
+      std::cerr
+          << "Brief info: "
+          << (config["StatusInterpreter"].contains(std::to_string(status))
+                  ? DeEscape(
+                        config["StatusInterpreter"][std::to_string(status)])
+                  : std::string("Unknown Error"))
+          << std::endl;
+      if (!continuous) {
+        std::cerr << total_passed << "/" << total_cases << " cases passed"
+                  << std::endl;
+        return status;
+      }
+    }
+    std::cerr << total_passed << "/" << total_cases << " cases passed"
+              << std::endl;
+    std::cerr << '\n' << std::endl;
+  }
+  return 0;
+}
\ No newline at end of file