#include <ROOT/TDataFrame.hxx>
using namespace ROOT::Experimental;

void uuidFile()
{
    auto file = TFile::Open("testUUID.root","recreate");
    auto tree = new TTree("cal","cal");
    
    TUUID run_info;
    
    tree->Branch("info_run",&run_info);
    
    for(int i=0;i<10;i++)
    {
        run_info=TUUID();
        tree->Fill();
    }
    tree->Write();
    file->Close();
    delete file;
}

void uuidFileWithValues()
{
    auto file = TFile::Open("testUUIDWithValues.root","recreate");
    auto tree = new TTree("cal","cal");
    
    TUUID run_info;
    int cal_edep;
    
    tree->Branch("info_run",&run_info);
    tree->Branch("cal_edep",&cal_edep);
    
    for(int i=0;i<10;i++)
    {
        run_info=TUUID();
        cal_edep=i;
        tree->Fill();
    }
    tree->Write();
    file->Close();
    delete file;
}

int test_warnings()
{
    ROOT::EnableImplicitMT();
   // write two files with different branch content
   {
        uuidFile();
        uuidFileWithValues();
   }

   // read the common branch from both files
   TDataFrame d("cal", { "testUUIDWithValues.root","testUUID.root"});
   d.Snapshot("cal", "out.root", "info_run");

   return 0;
}