test_TPCWorkflow.cxx

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#define BOOST_TEST_MODULE Test TPCWorkflow
#define BOOST_TEST_MAIN
#define BOOST_TEST_DYN_LINK
#include <boost/test/unit_test.hpp>
#include <iomanip>
#include <ios>
#include <iostream>
#include "SimulationDataFormat/MCCompLabel.h"
#include "SimulationDataFormat/MCTruthContainer.h"
#include <TFile.h>
#include <TTree.h>
 
using namespace o2;
using namespace o2::dataformats;
 
BOOST_AUTO_TEST_CASE(TPCWorkflow_types)
{
  // check that all types used in the workflow can be written to tree
  // Background:
  // strangely enough, std::vector of MCLabelContainer can be serialized in a message
  // even though std::vector < o2::dataformats::MCTruthContainer < o2::MCCompLabel >>
  // has not been specified in the LinkDef file. But it can only e serialized to a
  // tree branch if it has been defined.
  dataformats::MCLabelContainer labels;
  std::vector<MCLabelContainer> containers;
  const char* filename = "testTPCWorkflowTypes.root";
  const char* treename = "testtree";
  std::unique_ptr<TFile> testFile(TFile::Open(filename, "RECREATE"));
  std::unique_ptr<TTree> testTree = std::make_unique<TTree>(treename, treename);
 
  auto* labelsobject = &labels;
  auto* labelsbranch = testTree->Branch("labels", &labelsobject);
  auto* containerobject = &containers;
  auto* containerbranch = testTree->Branch("containers", &containerobject);
 
  labelsbranch->Fill();
  containerbranch->Fill();
 
  testTree.release();
  testFile->Close();
}