MCTrack.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 MCTrack class
#define BOOST_TEST_MAIN
#define BOOST_TEST_DYN_LINK
#include <boost/test/unit_test.hpp>
#include "SimulationDataFormat/MCTrack.h"
#include "DetectorsCommonDataFormats/DetID.h"
#include "TFile.h"
#include "TParticle.h"
#include "TMCProcess.h"
 
using namespace o2;
 
BOOST_AUTO_TEST_CASE(MCTrack_test)
{
  MCTrack track;
 
  // auxiliary lookup table needed to fetch and set hit properties
  std::vector<int> hitLUT(o2::detectors::DetID::nDetectors, -1);
  // in this test we have a single fictional detector 1, which we map to
  // the first bit
  hitLUT[1] = 0;
 
  // check properties on default constructed object
  BOOST_CHECK(track.getStore() == false);
  for (auto i = o2::detectors::DetID::First; i < o2::detectors::DetID::nDetectors; ++i) {
    BOOST_CHECK(track.leftTrace(i, hitLUT) == false);
  }
  BOOST_CHECK(track.getNumDet() == 0);
  BOOST_CHECK(track.hasHits() == false);
 
  // check storing
  track.setStore(true);
  BOOST_CHECK(track.getStore() == true);
  track.setStore(false);
  BOOST_CHECK(track.getStore() == false);
  track.setStore(true);
  BOOST_CHECK(track.getStore() == true);
 
  // set hit for first detector
  BOOST_CHECK(track.leftTrace(1, hitLUT) == false);
  track.setHit(hitLUT[1]);
  BOOST_CHECK(track.hasHits() == true);
  BOOST_CHECK(track.leftTrace(1, hitLUT) == true);
  BOOST_CHECK(track.getNumDet() == 1);
 
  // check process encoding
  track.setProcess(TMCProcess::kPPrimary);
  BOOST_CHECK(track.getProcess() == TMCProcess::kPPrimary);
  track.setProcess(TMCProcess::kPTransportation);
  BOOST_CHECK(track.getProcess() == TMCProcess::kPTransportation);
 
  {
    // serialize it
    TFile f("MCTrackOut.root", "RECREATE");
    f.WriteObject(&track, "MCTrack");
    f.Close();
  }
 
  {
    MCTrack* intrack = nullptr;
    TFile f("MCTrackOut.root", "OPEN");
    f.GetObject("MCTrack", intrack);
    BOOST_CHECK(intrack->getStore() == true);
    BOOST_CHECK(intrack->hasHits() == true);
  }
}