diff --git a/src/main.cpp b/src/main.cpp
index 359abf5..98ae069 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,7 +1,29 @@
-#include<bits/stdc++.h>
+#include <cstdlib>
+#include <filesystem>
+#include <iostream>
+#include<json/json.h>
 
-#define AS_EQ(a,b){if((a)!=(b)){cerr<<"assert failed :"<<endl<<#a<<":"}}
+using std::cerr,std::endl,std::cout;
+
+#define AS_EQ(a,b){if((a)!=(b)){cerr<<"assert eq failed :"<<endl<<#a<<":"<<(a)<<endl<<#b<<":"<<(b)<<endl;exit(1);}}
+#define AS_NE(a,b){if((a)!=(b)){cerr<<"assert not eq failed :"<<endl<<#a<<":"<<(a)<<endl<<#b<<":"<<(b)<<endl;exit(1);}}
+#define LOG(a){cout<<"[LOG]"<<(a)<<endl;}
+#define AS_EM(a,b,m){if((a)!=(b)){cerr<<"assert eq failed :"<<endl<<#a<<":"<<(a)<<endl<<#b<<":"<<(b)<<endl<<"message:"<<(m)<<endl;exit(1);}}
 
 int main(int argc, char* argv[]) {
-    std::cout << "hello world!" << std::endl;
-}
+    LOG("Zengtudor OI test tools . loading files .. please add a json file in arg");
+    LOG("arg[0]")
+    LOG(argv[0])
+    AS_EQ(argc,2)
+    std::filesystem::path p(argv[1]);
+    if (!p.is_absolute()) {
+        LOG("The path is not absolute, changing it")
+        p = std::filesystem::current_path()/p;
+    }
+    LOG("getting json files current dir")
+    LOG(p.string())
+    LOG("will use g++ compiler")
+    LOG("checking g++ compiler version")
+    int sys_ret = system("g++ --version");
+    AS_EM(sys_ret,0,"get g++ --version failed")
+}
\ No newline at end of file
diff --git a/tests/main.cpp b/tests/main.cpp
new file mode 100644
index 0000000..6ba5b0b
--- /dev/null
+++ b/tests/main.cpp
@@ -0,0 +1,9 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+
+int main(){
+    string s;
+    cin>>s;
+    cout<<s<<endl;
+}
\ No newline at end of file
diff --git a/tests/xj.json b/tests/xj.json
new file mode 100644
index 0000000..395b803
--- /dev/null
+++ b/tests/xj.json
@@ -0,0 +1,14 @@
+{
+    "files":[
+        "main.cpp"
+    ],
+    "args":[
+        "-O3"
+    ],
+    "tests":[
+        {
+            "in":"1.in",
+            "ans":"1.ans"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/xmake.lua b/xmake.lua
index aa08ce0..9997319 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -1,9 +1,12 @@
 add_rules("mode.debug", "mode.release")
+add_requires("jsoncpp")
+set_languages("c++17")
 
 target("xj")
+    set_rundir("./")
     set_kind("binary")
     add_files("src/*.cpp")
-
+    add_packages("jsoncpp")
 --
 -- If you want to known more usage about xmake, please see https://xmake.io
 --