TrigGlobEffCorrValidation.cxx

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
// contact: jmaurer@cern.ch
 
#include "xAODRootAccess/Init.h"
#include "xAODRootAccess/TStore.h"
#include "AsgTools/AnaToolHandle.h"
#include "TriggerAnalysisInterfaces/ITrigGlobalEfficiencyCorrectionTool.h"
#include "EgammaAnalysisInterfaces/IAsgElectronEfficiencyCorrectionTool.h"
#include "EgammaAnalysisInterfaces/IAsgPhotonEfficiencyCorrectionTool.h"
#include "MuonAnalysisInterfaces/IMuonTriggerScaleFactors.h"
#include "xAODEgamma/Electron.h"
#include "xAODEgamma/ElectronContainer.h"
#include "xAODEgamma/ElectronAuxContainer.h"
#include "xAODMuon/MuonContainer.h"
#include "xAODMuon/MuonAuxContainer.h"
#include "PATInterfaces/ISystematicsTool.h"
#include "xAODEgamma/Photon.h"
#include "xAODEgamma/PhotonContainer.h"
#include "xAODEgamma/PhotonAuxContainer.h"
 
#include <random>
#include <functional>
#include <algorithm>
#include <initializer_list>
 
// standalone single-threaded executable:
#include "CxxUtils/checker_macros.h"
ATLAS_NO_CHECK_FILE_THREAD_SAFETY;
 
#define MSGSOURCE "TrigGlobEffCorrValidation"
 
class SimpleElectronEfficiencyCorrectionTool : virtual public IAsgElectronEfficiencyCorrectionTool, public asg::AsgTool
{
    ASG_TOOL_CLASS(SimpleElectronEfficiencyCorrectionTool, IAsgElectronEfficiencyCorrectionTool)
    std::function<double(float)> m_func;
public:
    SimpleElectronEfficiencyCorrectionTool(const std::string& name, double eff = 0.8) : AsgTool(name), m_func([=](float){return eff;}) {}
    SimpleElectronEfficiencyCorrectionTool(const std::string& name, const std::function<double(float)>& func) : AsgTool(name), m_func(func) {}
    virtual ~SimpleElectronEfficiencyCorrectionTool() {}
    virtual CP::CorrectionCode getEfficiencyScaleFactor(const xAOD::Electron& electron, double& efficiencyScaleFactor) const override
    {
        efficiencyScaleFactor = m_func(electron.pt());
        return CP::CorrectionCode::Ok;
    }
    virtual CP::CorrectionCode getEfficiencyScaleFactor(double, double , unsigned int ,double&) const override
    {
        return CP::CorrectionCode::Error;
    }
    virtual CP::CorrectionCode applyEfficiencyScaleFactor(const xAOD::Electron&) const override { return CP::CorrectionCode::Error; }
    virtual bool isAffectedBySystematic(const CP::SystematicVariation&) const override { return false; }
    virtual CP::SystematicSet affectingSystematics() const override { return CP::SystematicSet(); }
    virtual CP::SystematicSet recommendedSystematics() const override { return CP::SystematicSet(); }
    virtual StatusCode applySystematicVariation(const CP::SystematicSet&) override { return StatusCode::SUCCESS; }
    virtual int systUncorrVariationIndex( const xAOD::Electron &) const override { return 0; }
  virtual int getNumberOfToys() const override {return 0;}
  virtual const CP::SystematicSet& appliedSystematics() const override { static const CP::SystematicSet dummy ; return dummy;};
  virtual void printCorrelationModels() const override {}
};
 
class SimplePhotonEfficiencyCorrectionTool : virtual public IAsgPhotonEfficiencyCorrectionTool, public asg::AsgTool
{
    ASG_TOOL_CLASS(SimplePhotonEfficiencyCorrectionTool, IAsgPhotonEfficiencyCorrectionTool)
    std::function<double(float)> m_func;
public:
    SimplePhotonEfficiencyCorrectionTool(const std::string& name, double eff = 0.8) : AsgTool(name), m_func([=](float){return eff;}) {}
    SimplePhotonEfficiencyCorrectionTool(const std::string& name, const std::function<double(float)>& func) : AsgTool(name), m_func(func) {}
    virtual ~SimplePhotonEfficiencyCorrectionTool() {}
    virtual CP::CorrectionCode getEfficiencyScaleFactor(const xAOD::Egamma& photon, double& efficiencyScaleFactor) const override
    {
        efficiencyScaleFactor = m_func(photon.pt());
        return CP::CorrectionCode::Ok;
    }
    virtual CP::CorrectionCode getEfficiencyScaleFactorError(const xAOD::Egamma&, double&) const override { return CP::CorrectionCode::Error; }
    virtual CP::CorrectionCode applyEfficiencyScaleFactor(xAOD::Egamma&) const override { return CP::CorrectionCode::Error; }
    virtual bool isAffectedBySystematic(const CP::SystematicVariation&) const override { return false; }
    virtual CP::SystematicSet affectingSystematics() const override { return CP::SystematicSet(); }
    virtual CP::SystematicSet recommendedSystematics() const override { return CP::SystematicSet(); }
    virtual StatusCode applySystematicVariation(const CP::SystematicSet&) override { return StatusCode::SUCCESS; }
};
 
class SimpleMuonTriggerScaleFactors : public CP::IMuonTriggerScaleFactors, public asg::AsgTool 
{
    ASG_TOOL_CLASS(SimpleMuonTriggerScaleFactors, CP::IMuonTriggerScaleFactors)
    std::map<std::string, std::function<double(float)>> m_efficiencies;
public:
    SimpleMuonTriggerScaleFactors(const std::string& name, const std::map<std::string,std::function<double(float)>>& efficiencies = {}) : AsgTool(name)
    {
        for(auto& kv : efficiencies)
        {
            if(kv.first[0] != 'm') continue;
            std::string leg;
            for(char c : kv.first)
            {
                if(c=='u' && leg.back()=='m') leg.replace(leg.end()-1, leg.end(), "HLT_mu");
                else leg.push_back(c);
            }
            m_efficiencies.emplace(leg, kv.second);
        }
    }
    virtual ~SimpleMuonTriggerScaleFactors() {}
    virtual StatusCode initialize(void) override { return StatusCode::SUCCESS; }
    virtual CP::CorrectionCode getTriggerScaleFactor(const xAOD::MuonContainer&, Double_t&, const std::string&) const override { return CP::CorrectionCode::Ok; }
    virtual CP::CorrectionCode getTriggerScaleFactor(const xAOD::Muon&, Double_t&, const std::string&) const override { return CP::CorrectionCode::Ok; }
    virtual CP::CorrectionCode getTriggerEfficiency(const xAOD::Muon& muon, Double_t& efficiency, const std::string& trig, Bool_t) const override
    {
        auto itr = m_efficiencies.find(trig);
        if(itr != m_efficiencies.end())
        {
            efficiency = itr->second(muon.pt());
            return CP::CorrectionCode::Ok;
        }
        return CP::CorrectionCode::Error;
    }
    virtual int getBinNumber(const xAOD::Muon&, const std::string&) const override { return 0; };
    virtual bool isAffectedBySystematic(const CP::SystematicVariation&) const override { return false; }
    virtual CP::SystematicSet affectingSystematics() const override { return CP::SystematicSet(); }
    virtual CP::SystematicSet recommendedSystematics() const override { return CP::SystematicSet(); }
    virtual StatusCode applySystematicVariation(const CP::SystematicSet&) override { return StatusCode::SUCCESS; }
    virtual bool isTriggerSupported(const std::string& ) const override {return false;}
};
 
struct Config
{
    std::string testName;
    std::string triggers = "";
    unsigned minLeptons = 1;
    unsigned maxLeptons = 5;
    std::vector<float> leptonPtValues;
    std::map<std::string, std::function<double(float)>> efficiencies;
    std::function<bool(const std::vector<const xAOD::Electron*>&,const std::vector<const xAOD::Muon*>&,const std::vector<const xAOD::Photon*>&)> eventSelection = nullptr;
    std::string unavailable;
    double expectedEfficiency = -1.;
    double expectedEfficiencyTolerance = 1e-6;
    bool generateElectrons = false;
    bool generateMuons = false;
    bool generatePhotons = false;
    bool debug = false;
    
    Config(const char* name) : testName(name), leptonPtValues {30e4f} { }
    Config& setTriggers(const std::string& t) { triggers = t; return *this; }
    Config& setLeptonPDF(unsigned nmin, unsigned nmax, std::initializer_list<float> ptvalues)
    {
        minLeptons = nmin;
        maxLeptons = nmax;
        leptonPtValues = ptvalues;
        return *this;
    }
    Config& setEfficiency(const std::string& leg, double eff)
    {
        efficiencies.emplace(leg, [=](float){return eff;});
        updateFlavours(leg);
        return *this;
    }
    Config& setEfficiency(const std::string& leg, std::function<double(float)>&& eff)
    {
        efficiencies.emplace(leg, eff);
        updateFlavours(leg);
        return *this;
    }
    Config& setEventSelection(const decltype(eventSelection)& sel) { eventSelection = sel; return *this; }
    Config& setDebug() { debug = true; return *this; };
    Config& setExpectedEfficiency(double eff, double tolerance)
    {
        expectedEfficiency = eff;
        expectedEfficiencyTolerance = tolerance;
        return *this;
    }
    Config& setUnavailable(const std::string& leg)
    {
        if (!unavailable.empty()) unavailable += ',';
        unavailable += leg;
        updateFlavours(leg);
        return *this;
    }
private:
    void updateFlavours(const std::string& leg)
    {
        if (leg[0] == 'e') generateElectrons = true;
        else if (leg[0] == 'm') generateMuons = true;
        else if (leg[0] == 'g') generatePhotons = true;
    }
};
 
xAOD::ElectronContainer* electronContainer = nullptr;
xAOD::MuonContainer* muonContainer = nullptr;
xAOD::PhotonContainer* photonContainer = nullptr;
bool quiet = false, fast = false, skip = false;
 
template<class Lepton>
inline unsigned count(const std::vector<const Lepton*>& leptons, float ptmin, float ptmax = 1e12f)
{
    return std::count_if(leptons.cbegin(), leptons.cend(), [=](const Lepton* l){return l->pt()>=ptmin && l->pt()<ptmax;});
}
 
bool run_test(const Config& cfg, int toy_to_debug = -1);
 
using namespace asg::msgUserCode;
 
int main(int argc, char* argv[])
{   
    ANA_CHECK_SET_TYPE(bool);
    const std::string flagQuiet("--quiet"), flagFast("--fast"), flagSkip("--skip-if-athena");
    for(int i=1;i<argc;++i)
    {
        if(argv[i] == flagQuiet) quiet = true;
        else if(argv[i] == flagFast) fast = true;
    #ifndef XAOD_STANDALONE
        else if(argv[i] == flagSkip) skip = true;
    #endif
    }
    if(skip) return 0;
    
#ifndef XAOD_STANDALONE
    Warning(MSGSOURCE, "This test doesn't work with athena for the moment.");
    // the problem is that one can't initialize a ToolHandle from a pointer
    // and the Simple* tools are not known to the athena framework.
#endif
    
#ifdef XAOD_STANDALONE
    StatusCode::enableFailure();
    ANA_CHECK (xAOD::Init());
#endif
    xAOD::TStore store;
    CP::CorrectionCode::enableFailure();
    
    electronContainer = new xAOD::ElectronContainer();
    ANA_CHECK(store.record(electronContainer, "Electrons"));
    auto electronContainerAux = new xAOD::ElectronAuxContainer();
    ANA_CHECK(store.record(electronContainerAux, "ElectronsAux"));
    electronContainer->setStore(electronContainerAux);
    for(int i=0;i<10;++i)
    {
        auto el = new xAOD::Electron();
        electronContainer->push_back(el);
    }
    
    muonContainer = new xAOD::MuonContainer();
    ANA_CHECK(store.record(muonContainer, "Muons"));
    auto muonContainerAux = new xAOD::MuonAuxContainer();
    ANA_CHECK(store.record(muonContainerAux, "MuonsAux"));
    muonContainer->setStore(muonContainerAux);
    for(int i=0;i<10;++i)
    {
        auto mu = new xAOD::Muon();
        muonContainer->push_back(mu);
    }
    
    photonContainer = new xAOD::PhotonContainer();
    ANA_CHECK(store.record(photonContainer, "Photons"));
    auto photonContainerAux = new xAOD::PhotonAuxContainer();
    ANA_CHECK(store.record(photonContainerAux, "PhotonsAux"));
    photonContainer->setStore(photonContainerAux);
    for(int i=0;i<10;++i)
    {
        auto ph = new xAOD::Photon();
        photonContainer->push_back(ph);
    }
    
    using VE = const std::vector<const xAOD::Electron*>&;
    using VM = const std::vector<const xAOD::Muon*>&;
    using VP = const std::vector<const xAOD::Photon*>&;
    
    ANA_CHECK(run_test(Config("1L (1 lepton)")
        .setTriggers("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose || mu20_iloose_L1MU15_OR_mu50")
        .setLeptonPDF(1, 1, {30e3f})
        .setEfficiency("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose", 0.60)
        .setEfficiency("mu20_iloose_L1MU15_OR_mu50", 0.60)
        .setExpectedEfficiency(0.60, 1e-6)
    ));
    
    ANA_CHECK(run_test(Config("RETURN_UNIT_SCALE_FACTOR")
        .setTriggers("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose || mu20_iloose_L1MU15_OR_mu50")
        .setLeptonPDF(1, 1, {30e3f})
        .setUnavailable("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose")
        .setEfficiency("mu20_iloose_L1MU15_OR_mu50", 0.60)
        .setExpectedEfficiency(0.806800, 1e-6)
    ));
    
    ANA_CHECK(run_test(Config("1L (2 flavours, 1-4 leptons)")
        .setTriggers("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose || mu20_iloose_L1MU15_OR_mu50")
        .setLeptonPDF(1, 4, {30e3f})
        .setEfficiency("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose", 0.40)
    ));
    
    ANA_CHECK(run_test(Config("2e (2 leptons)")
        .setTriggers("2e12_lhloose_L12EM10VH")
        .setLeptonPDF(2, 2, {30e3f})
        .setEfficiency("e12_lhloose_L1EM10VH", 0.50)
        .setExpectedEfficiency(0.25, 1e-6)
    ));
 
    ANA_CHECK(run_test(Config("2e (2-3 leptons)")
        .setTriggers("2e12_lhloose_L12EM10VH")
        .setLeptonPDF(2, 3, {30e3f})
        .setEfficiency("e12_lhloose_L1EM10VH", 0.50)
    ));
    
    ANA_CHECK(run_test(Config("emu (2 leptons)")
        .setTriggers("e17_lhloose_mu14")
        .setLeptonPDF(2, 2, {20e3f})
        .setEfficiency("e17_lhloose", 0.60)
        .setEfficiency("mu14", 0.60)
        .setExpectedEfficiency(0.36, 1e-6)
        .setEventSelection([](VE ve, VM vm, VP) { return count(ve,18e3f)>0&&count(vm,15e3f)>0; })
    ));
    
    ANA_CHECK(run_test(Config("emu (2-3 leptons)")
        .setTriggers("e17_lhloose_mu14")
        .setLeptonPDF(2, 3, {16e3f, 20e3f})
        .setEfficiency("e17_lhloose", 0.64)
        .setEfficiency("mu14", 0.56)
        .setEventSelection([](VE ve, VM vm, VP) { return count(ve,18e3f)>0&&count(vm,15e3f)>0; })
    ));
    
    ANA_CHECK(run_test(Config("2mu (asym) (2 leptons)")
        .setTriggers("mu18_mu8noL1")
        .setLeptonPDF(2, 2, {30e3f})
        .setEfficiency("mu18", 0.70)
        .setEfficiency("mu8noL1", 0.70)
        .setExpectedEfficiency(0.49, 1e-6)
    ));
    
    ANA_CHECK(run_test(Config("2mu (asym) (2-3 leptons)")
        .setTriggers("mu18_mu8noL1")
        .setLeptonPDF(2, 3, {11e3f, 21e3f})
        .setEfficiency("mu18", 0.60)
        .setEfficiency("mu8noL1", 0.70)
        .setEventSelection([](VE, VM vm, VP) { return count(vm,19e3f)>0&&count(vm,10e3f)>1; })
    ));
    
    ANA_CHECK(run_test(Config("2e||emu||2mu")
        .setTriggers("2e12_lhloose_L12EM10VH || e17_lhloose_mu14 || mu18_mu8noL1")
        .setLeptonPDF(2, 4, {10e3f, 16e3f, 20e3f})
        .setEfficiency("e12_lhloose_L1EM10VH", 0.50)
        .setEfficiency("e17_lhloose", 0.60)
        .setEfficiency("mu18", 0.60)
        .setEfficiency("mu14", 0.60)
        .setEfficiency("mu8noL1", 0.70)
        .setEventSelection([](VE ve, VM vm, VP) { return count(ve,13e3f)>1 
            || (count(ve,18e3f)>0&&count(vm,15e3f)>0) || (count(vm,19e3f)>0&&count(vm,10e3f)>1); })
    ));
    
    ANA_CHECK(run_test(Config("2e||emu||2mu||1e||1mu")
        .setTriggers("2e12_lhloose_L12EM10VH || e17_lhloose_mu14 || mu18_mu8noL1 || e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose || mu20_iloose_L1MU15_OR_mu50")
        .setLeptonPDF(1, 4, {10e3f, 16e3f, 20e3f, 30e3f})
        .setEfficiency("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose", 0.40)
        .setEfficiency("mu20_iloose_L1MU15_OR_mu50", 0.40)
        .setEfficiency("e12_lhloose_L1EM10VH", 0.50)
        .setEfficiency("e17_lhloose", 0.60)
        .setEfficiency("mu18", 0.60)
        .setEfficiency("mu14", 0.60)
        .setEfficiency("mu8noL1", 0.70)
        .setEventSelection([](VE ve, VM vm, VP) { return count(ve,13e3f)>1 
            || (count(ve,18e3f)>0&&count(vm,15e3f)>0) || (count(vm,19e3f)>0&&count(vm,10e3f)>1)
            || count(ve,25e3f)>0 || count(vm,21.5e3f)>0; })
    ));
    
    ANA_CHECK(run_test(Config("e_2e (3 leptons)")
        .setTriggers("e17_lhloose_2e9_lhloose")
        .setLeptonPDF(3, 3, {20e3f})
        .setEfficiency("e17_lhloose", 0.90)
        .setEfficiency("e9_lhloose", 0.90)
        .setExpectedEfficiency(0.729, 1e-6)
    ));
    
    ANA_CHECK(run_test(Config("e_2e (3-5 leptons)")
        .setTriggers("e17_lhloose_2e9_lhloose")
        .setLeptonPDF(3, 5, {12e3f, 20e3f})
        .setEfficiency("e17_lhloose", 0.60)
        .setEfficiency("e9_lhloose", 0.70)
        .setEventSelection([](VE ve, VM, VP) { return (count(ve,18e3f)>0&&count(ve,10e3f)>2); })
    ));
    
    ANA_CHECK(run_test(Config("3mu (3 leptons)")
        .setTriggers("3mu6")
        .setLeptonPDF(3, 3, {10e3f})
        .setEfficiency("mu6", 0.90)
        .setExpectedEfficiency(0.729, 1e-6)
    ));
    
    ANA_CHECK(run_test(Config("3mu (3-5 leptons)")
        .setTriggers("3mu6")
        .setLeptonPDF(3, 5, {10e3f})
        .setEfficiency("mu6", 0.70)
        .setEventSelection([](VE, VM vm, VP) { return count(vm,7e3f)>2; })
    ));
    
    ANA_CHECK(run_test(Config("2e_mu||e_2mu")
        .setTriggers("e12_lhloose_2mu10 || 2e12_lhloose_mu10")
        .setLeptonPDF(3, 5, {14e3f})
        .setEfficiency("e12_lhloose", 0.50)
        .setEfficiency("mu10", 0.60)
        .setEventSelection([](VE ve, VM vm, VP) { return (count(ve,13e3f)>1&&count(vm,11e3f)>0) || (count(ve,13e3f)>0&&count(vm,11e3f)>1); })
    )); 
    
    // not a full test of the function since 2mu10 completely shadows 2mu14, but it validates at least part of the logic. Full test done with photons (see below).
    ANA_CHECK(run_test(Config("2mu||2mu||mu")
        .setTriggers("2mu10 || 2mu14 || mu24_iloose_L1MU15")
        .setLeptonPDF(1, 4, {13e3f, 16e3f, 30e3f})
        .setEfficiency("mu10", 0.70)
        .setEfficiency("mu14", 0.60)
        .setEfficiency("mu24_iloose_L1MU15", 0.30)
        .setEventSelection([](VE, VM vm, VP) { return (count(vm,11e3f)>1) || (count(vm,25.5e3f)>1) ; })
    ));
    
    ANA_CHECK(run_test(Config("mu_mu||2mu||mu")
        .setTriggers("mu18_mu8noL1 || 2mu14 || mu24_iloose_L1MU15")
        .setLeptonPDF(1, 4, {11e3f, 16e3f, 20e3f, 30e3f})
        .setEfficiency("mu8noL1", 0.80)
        .setEfficiency("mu14", 0.70)
        .setEfficiency("mu18", 0.60)
        .setEfficiency("mu24_iloose_L1MU15", 0.30)
        .setEventSelection([](VE, VM vm, VP) { return (count(vm,25.5e3f)>0) || (count(vm,10e3f)>1&&count(vm,19e3f)>0) || (count(vm,15e3f)>1) ; })
    ));
    
    ANA_CHECK(run_test(Config("2e||mu_mu||2mu||emu||emu||e||mu")
        .setTriggers("2e12_lhloose_L12EM10VH || mu18_mu8noL1 || 2mu14 || e17_lhloose_mu14 || e7_lhmedium_mu24 || e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose || mu20_iloose_L1MU15")
        .setLeptonPDF(2, 2, {11e3f, 13e3f, 16e3f, 20e3f, 30e3f})
        .setEfficiency("mu8noL1", 0.80)
        .setEfficiency("mu14", 0.70)
        .setEfficiency("mu18", 0.60)
        .setEfficiency("mu20_iloose_L1MU15", 0.30)
        .setEfficiency("mu24", 0.37)
        .setEfficiency("e7_lhmedium", 0.53)
        .setEfficiency("e12_lhloose_L1EM10VH", 0.73)
        .setEfficiency("e17_lhloose", 0.67)
        .setEfficiency("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose", 0.42)
        .setEventSelection([](VE ve, VM vm, VP) { return (count(vm,25.5e3f)>0) || (count(ve,25e3f)>0) || (count(ve,13e3f)>1) || (count(vm,15e3f)>1)
            || (count(vm,10e3f)>1&&count(vm,19e3f)>0) ||  (count(ve,18e3f)>0&&count(vm,15e3f)>0) || (count(ve,8e3f)>0&&count(vm,25.5e3f)>0); })
    ));
    
    ANA_CHECK(run_test(Config("2g (sym)")
        .setTriggers("2g22_tight_L12EM15VHI")
        .setLeptonPDF(2, 3, {30e3f})
        .setEfficiency("g22_tight_L1EM15VHI", 0.60)
        .setEventSelection([](VE, VM, VP vp) { return count(vp,23e3f)>1; })
    ));
    
    ANA_CHECK(run_test(Config("2g (sym) || 2g (sym) || 1g")
        .setTriggers("2g50_loose_L12EM20VH || 2g22_tight_L12EM15VHI || g120_loose")
        .setLeptonPDF(2, 3, {25e3f, 60e3f, 150e3f})
        .setEfficiency("g22_tight_L1EM15VHI", 0.43)
        .setEfficiency("g50_loose_L1EM20VH", 0.74)
        .setEfficiency("g120_loose", 0.82)
        .setEventSelection([](VE, VM, VP vp) { return count(vp,23e3f)>1 || count(vp,121e3f)>0; })
    ));
    
    ANA_CHECK(run_test(Config("2g (sym) || 2g (asym)")
        .setTriggers("2g22_tight_L12EM15VHI || g35_medium_g25_medium_L12EM20VH")
        .setLeptonPDF(2, 4, {24e3f, 30e3f, 40e3f})
        .setEfficiency("g22_tight_L1EM15VHI", 0.43)
        .setEfficiency("g35_medium_L1EM20VH", 0.74)
        .setEfficiency("g25_medium_L1EM20VH", 0.82)
        .setEventSelection([](VE, VM, VP vp) { return count(vp,23e3f)>1; })
    ));
 
    ANA_CHECK(run_test(Config("2g_g (3 photons)")
        .setTriggers("2g25_loose_g15_loose")
        .setLeptonPDF(3, 3, {30e3f})
        .setEfficiency("g25_loose", 0.8)
        .setEfficiency("g15_loose", 0.9)
        .setExpectedEfficiency(0.704, 1e-6)
    ));
    
    ANA_CHECK(run_test(Config("2g_g (3-5 photons)")
        .setTriggers("2g25_loose_g15_loose")
        .setLeptonPDF(3, 5, {20e3f, 30e3f})
        .setEfficiency("g25_loose", 0.63)
        .setEfficiency("g15_loose", 0.88)
        .setEventSelection([](VE, VM, VP vp) { return count(vp,26e3f)>1 && count(vp,16e3f)>2; })
    ));
    
    ANA_CHECK(run_test(Config("e || mu || g (factorized)")
        .setTriggers("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose || mu20_iloose_L1MU15_OR_mu50 || g120_loose")
        .setLeptonPDF(1, 2, {150e3f})
        .setEfficiency("e24_lhmedium_L1EM20VH_OR_e60_lhmedium_OR_e120_lhloose", 0.55)
        .setEfficiency("mu20_iloose_L1MU15_OR_mu50", 0.66)
        .setEfficiency("g120_loose", 0.77)
    ));
 
    ANA_CHECK(run_test(Config("3e || 3mu || 3g (factorized)")
        .setTriggers("e17_lhloose_2e9_lhloose || 3mu6 || 3g20_loose")
        .setLeptonPDF(4, 6, {30e3f})
        .setEfficiency("e9_lhloose", 0.68)
        .setEfficiency("e17_lhloose", 0.54)
        .setEfficiency("mu6", 0.77)
        .setEfficiency("g20_loose", 0.81)
        .setEventSelection([](VE ve, VM vm, VP vp) { return count(ve,18e3f)>2 || count(vm,10e3f)>2 || count(vp,21e3f)>2; })
    ));
 
    ANA_CHECK(run_test(Config("e_2mu || 2g || 1g (factorized)")
        .setTriggers("g120_loose || 2e12_lhloose_mu10 || 2g22_tight_L12EM15VHI")
        .setLeptonPDF(3, 6, {150e3f})
        .setEfficiency("e12_lhloose", 0.48)
        .setEfficiency("mu10", 0.62)
        .setEfficiency("g22_tight_L1EM15VHI", 0.35)
        .setEfficiency("g120_loose", 0.56)
        .setEventSelection([](VE ve, VM vm, VP vp) { return (count(ve,13e3f)>1  && count(vm,11e3f)>0) || count(vp,21e3f)>0; })
    ));
 
    ANA_CHECK(run_test(Config("4mu")
        .setTriggers("4mu4_L14MU3V")
        .setLeptonPDF(4, 6, {20e3f})
        .setEfficiency("mu4_L1MU3V", 0.72)
        .setEventSelection([](VE, VM vm, VP) { return count(vm,5e3f)>=4; })
    ));
    return 0;
}
 
 
bool configure(asg::AnaToolHandle<ITrigGlobalEfficiencyCorrectionTool>& tool, 
    ToolHandleArray<IAsgElectronEfficiencyCorrectionTool>& electronEffToolsHandles, ToolHandleArray<IAsgElectronEfficiencyCorrectionTool>& electronSFToolsHandles, 
    ToolHandleArray<CP::IMuonTriggerScaleFactors>& muonToolsHandles,
    ToolHandleArray<IAsgPhotonEfficiencyCorrectionTool>& photonEffToolsHandles, ToolHandleArray<IAsgPhotonEfficiencyCorrectionTool>& photonSFToolsHandles, 
    const std::string& triggers, const std::map<std::string, std::string>& legsPerTool, unsigned long nToys, bool debug)
{
    ANA_CHECK_SET_TYPE(bool);
    ANA_CHECK(tool.setProperty("ElectronEfficiencyTools", electronEffToolsHandles));
    ANA_CHECK(tool.setProperty("ElectronScaleFactorTools", electronSFToolsHandles));
    ANA_CHECK(tool.setProperty("PhotonEfficiencyTools", photonEffToolsHandles));
    ANA_CHECK(tool.setProperty("PhotonScaleFactorTools", photonSFToolsHandles));
    ANA_CHECK(tool.setProperty("ListOfLegsPerTool", legsPerTool));
    ANA_CHECK(tool.setProperty("MuonTools", muonToolsHandles));
    ANA_CHECK(tool.setProperty("TriggerCombination2015", triggers));
    ANA_CHECK(tool.setProperty("NumberOfToys", nToys));
    ANA_CHECK(tool.setProperty("UseInternalSeed", true));
    ANA_CHECK(tool.setProperty("OutputLevel", debug? MSG::DEBUG : quiet? MSG::WARNING : MSG::INFO));
    ANA_CHECK(tool.initialize());
    return true;
}
 
bool run_test(const Config& cfg, int toy_to_debug)
{
    ANA_CHECK_SET_TYPE(bool);
    if(!quiet) Info(MSGSOURCE, "Running test %s", cfg.testName.c_str());
    const int nToysPerEvent = (fast? 250 : 500), nToysPerTest = (fast? 200 : 2000), nToySamples = 10;
    std::vector<SimpleElectronEfficiencyCorrectionTool*> electronTools;
    ToolHandleArray<IAsgElectronEfficiencyCorrectionTool> electronEffToolsHandles, electronSFToolsHandles;
    std::vector<SimplePhotonEfficiencyCorrectionTool*> photonTools;
    ToolHandleArray<IAsgPhotonEfficiencyCorrectionTool> photonEffToolsHandles, photonSFToolsHandles;
    std::map<std::string,std::string> legsPerTool;
    for(auto& kv : cfg.efficiencies)
    {
        if(kv.first[0]=='e')
        {
            electronTools.emplace_back(new SimpleElectronEfficiencyCorrectionTool("EFF-"+kv.first, kv.second));
            legsPerTool.emplace(electronTools.back()->name(), kv.first);
            #ifdef XAOD_STANDALONE
                electronEffToolsHandles.push_back(electronTools.back());
            #endif
            electronTools.emplace_back(new SimpleElectronEfficiencyCorrectionTool("SF-"+kv.first, 1.));
            legsPerTool.emplace(electronTools.back()->name(), kv.first);
            #ifdef XAOD_STANDALONE
                electronSFToolsHandles.push_back(electronTools.back());
            #endif
        }
        else if(kv.first[0]=='g')
        {
            photonTools.emplace_back(new SimplePhotonEfficiencyCorrectionTool("EFF-"+kv.first, kv.second));
            legsPerTool.emplace(photonTools.back()->name(), kv.first);
            #ifdef XAOD_STANDALONE
                photonEffToolsHandles.push_back(photonTools.back());
            #endif
            photonTools.emplace_back(new SimplePhotonEfficiencyCorrectionTool("SF-"+kv.first, 1.));
            legsPerTool.emplace(photonTools.back()->name(), kv.first);
            #ifdef XAOD_STANDALONE
                photonSFToolsHandles.push_back(photonTools.back());
            #endif
        }
    }
    if (!cfg.unavailable.empty())
    {
        legsPerTool[ITrigGlobalEfficiencyCorrectionTool::toolnameForDefaultScaleFactor()] = cfg.unavailable;
    }
    std::vector<SimpleMuonTriggerScaleFactors*> muonTools;
    muonTools.emplace_back(new SimpleMuonTriggerScaleFactors("EFF-muons", cfg.efficiencies));
    ToolHandleArray<CP::IMuonTriggerScaleFactors> muonToolsHandles;
    #ifdef XAOD_STANDALONE
        muonToolsHandles.push_back(muonTools.back());
    #endif
    std::string suffix = ((toy_to_debug>=0)? "_debug" : "");
    asg::AnaToolHandle<ITrigGlobalEfficiencyCorrectionTool> trigGlobTool("TrigGlobalEfficiencyCorrectionTool/trigGlobTool" + suffix);
    asg::AnaToolHandle<ITrigGlobalEfficiencyCorrectionTool> trigGlobTool_toys("TrigGlobalEfficiencyCorrectionTool/trigGlobTool_toys" + suffix);
    bool debug = cfg.debug || (toy_to_debug>=0);
    bool compareWithToys = cfg.unavailable.empty();
    ANA_CHECK(configure(trigGlobTool, electronEffToolsHandles, electronSFToolsHandles, muonToolsHandles, photonEffToolsHandles, photonSFToolsHandles, cfg.triggers, legsPerTool, 0, debug));
    if (compareWithToys) {
        ANA_CHECK(configure(trigGlobTool_toys, electronEffToolsHandles, electronSFToolsHandles, muonToolsHandles, photonEffToolsHandles, photonSFToolsHandles, cfg.triggers, legsPerTool, nToysPerEvent, debug));
    }
    std::default_random_engine rdm;
    std::uniform_int_distribution<unsigned> nleptonsPdf(cfg.minLeptons, cfg.maxLeptons);
    std::discrete_distribution<> flavourPdf({1.*cfg.generateElectrons, 1.*cfg.generateMuons, 1.*cfg.generatePhotons});
    std::uniform_int_distribution<unsigned> ptIndexPdf(0, cfg.leptonPtValues.size()-1);
    std::vector<const xAOD::Electron*> electrons;
    std::vector<const xAOD::Muon*> muons;
    std::vector<const xAOD::Photon*> photons;
    std::vector<const xAOD::IParticle*> particles;
    double sum_eff = 0., sum_eff_toys[nToySamples] = {0};
    for(int toy=0; toy<nToysPerTest; ++toy)
    {
        do
        {
            electrons.clear();
            muons.clear();
            photons.clear();
            particles.clear();
            const unsigned nLeptons = nleptonsPdf(rdm);
            for(unsigned index=0;index<nLeptons;++index)
            {
                float pt = cfg.leptonPtValues[ptIndexPdf(rdm)];
                switch(flavourPdf(rdm))
                {
                    case 0:
                    {
                        auto electron = electronContainer->at(electrons.size());
                        particles.push_back(electron);
                        electrons.push_back(electron);
                        electron->setPtEtaPhi(pt, 0.f, 0.f);
                        break;
                    }
                    case 1:
                    {
                        auto muon = muonContainer->at(muons.size());
                        particles.push_back(muon);
                        muons.push_back(muon);
                        muon->setP4(pt, 0.f, 0.f);
                        break;
                    }
                    case 2:
                    {
                        auto photon = photonContainer->at(photons.size());
                        particles.push_back(photon);
                        photons.push_back(photon);
                        photon->setPtEtaPhi(pt, 0.f, 0.f);
                        break;
                    }
                }
            }
        }
        while(cfg.eventSelection && !cfg.eventSelection(electrons, muons, photons));
        if(toy_to_debug>=0 && toy!=toy_to_debug) continue;
        
        double dummy, eff = 0., eff_toys;
        const int runNumber = 281130;
        if(trigGlobTool->getEfficiency(runNumber, particles, eff, dummy) != CP::CorrectionCode::Ok)
        {
            if(toy_to_debug < 0)
            {
                Info(MSGSOURCE, "Running %s test again for this toy event, with the debug flag set", cfg.testName.c_str());
                run_test(cfg, toy);
            }
            return false;
        }
        sum_eff += eff;
        for(int spl=0;spl<compareWithToys*nToySamples;++spl)
        {
            eff_toys = 0.;
            if(trigGlobTool_toys->getEfficiency(runNumber, particles, eff_toys, dummy) != CP::CorrectionCode::Ok)
            {
                if(toy_to_debug < 0)
                {
                    Info(MSGSOURCE, "Running %s test again for this toy event, with the debug flag set", cfg.testName.c_str());
                    run_test(cfg, toy);
                    return false;
                }
                return false;
            }
            sum_eff_toys[spl] += eff_toys;
        }
        if(toy == toy_to_debug) return true;
    }
    if(cfg.expectedEfficiency > 0.)
    {
        double eff = sum_eff / nToysPerTest;
        if(fabs(eff - cfg.expectedEfficiency) > cfg.expectedEfficiencyTolerance)
        {
            Error(MSGSOURCE, "The difference is too large, %f versus %f", eff, cfg.expectedEfficiency);
            return false;
        }
    }
    if (compareWithToys)
    {
        double eff = sum_eff/nToysPerTest, eff_toys = 0., toys_rms = 0.;
        for(double sum : sum_eff_toys) eff_toys += sum / nToysPerTest;
        eff_toys /= nToySamples;
        for(double sum : sum_eff_toys) toys_rms += pow(sum/nToysPerTest - eff_toys, 2);
        toys_rms = sqrt(toys_rms / (nToySamples-1));
        double  sigma = fabs(eff-eff_toys) / toys_rms;
        if(!quiet) Info(MSGSOURCE, "Efficiency: %f, toys: %f (signif. = %.1f sigma)", eff, eff_toys, sigma);
        if(sigma >= 3.)
        {
            Error(MSGSOURCE, "The difference is too large");
            return false;
        }
        else if(sigma >= 2.) Warning(MSGSOURCE, "The difference isn't small");
    }
    for(auto tool : electronTools) delete tool;
    for(auto tool : muonTools) delete tool;
    for(auto tool : photonTools) delete tool;
    return true;
}