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#include <cppunit/extensions/HelperMacros.h>
#include "CommonTools/Utils/interface/ExpressionEvaluator.h"
#include "CommonTools/Utils/interface/ExpressionEvaluatorTemplates.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrackReco/interface/TrackExtra.h"
#include "DataFormats/Candidate/interface/CompositeCandidate.h"
#include "DataFormats/Candidate/interface/LeafCandidate.h"
#include "DataFormats/PatCandidates/interface/Jet.h"
#include "DataFormats/PatCandidates/interface/Muon.h"
class testExpressionEvaluator : public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(testExpressionEvaluator);
CPPUNIT_TEST(checkAll);
CPPUNIT_TEST_SUITE_END();
public:
testExpressionEvaluator() {} // for crappy pats
~testExpressionEvaluator() {}
void checkAll();
};
CPPUNIT_TEST_SUITE_REGISTRATION(testExpressionEvaluator);
#include <iostream>
namespace {
void checkCandidate(reco::LeafCandidate const &cand, const std::string &expression, double x) {
std::cerr << "testing " << expression << std::endl;
try {
//provide definition of the virtual function as a string
std::string sexpr = "double eval(reco::LeafCandidate const& cand) const override { return ";
sexpr += expression + ";}";
// construct the expression evaluator (pkg where precompile.h resides, name of base class, declaration of overloaded member function)
reco::ExpressionEvaluator eval(
"CommonTools/CandUtils", "reco::ValueOnObject<reco::LeafCandidate>", sexpr.c_str());
// obtain a pointer to the base class (to be stored in Filter and Analyser at thier costruction time!)
reco::ValueOnObject<reco::LeafCandidate> const *expr = eval.expr<reco::ValueOnObject<reco::LeafCandidate>>();
CPPUNIT_ASSERT(expr);
// invoke
CPPUNIT_ASSERT(std::abs(expr->eval(cand) - x) < 1.e-6);
} catch (cms::Exception const &e) {
// if compilation fails, the compiler output is part of the exception message
std::cerr << e.what() << std::endl;
CPPUNIT_ASSERT("ExpressionEvaluator threw" == 0);
}
}
std::vector<reco::LeafCandidate> generate() {
reco::Candidate::LorentzVector p1(10, -10, -10, 15);
reco::Candidate::LorentzVector incr(0, 3, 3, 0);
int sign = 1;
std::vector<reco::LeafCandidate> ret;
for (int i = 0; i < 10; ++i) {
ret.emplace_back(sign, p1);
sign = -sign;
p1 += incr;
}
return ret;
}
struct MyAnalyzer {
using Selector = reco::MaskCollection<reco::LeafCandidate>;
explicit MyAnalyzer(std::string const &cut) {
std::string sexpr = "void eval(Collection const & c, Mask & m) const override{";
sexpr += "\n auto cut = [](reco::LeafCandidate const & cand){ return " + cut + ";};\n";
sexpr += "mask(c,m,cut); }";
std::cerr << "testing " << sexpr << std::endl;
try {
reco::ExpressionEvaluator eval(
"CommonTools/CandUtils", "reco::MaskCollection<reco::LeafCandidate>", sexpr.c_str());
m_selector = eval.expr<Selector>();
CPPUNIT_ASSERT(m_selector);
} catch (cms::Exception const &e) {
std::cerr << e.what() << std::endl;
CPPUNIT_ASSERT("ExpressionEvaluator threw" == 0);
}
}
void analyze() const {
auto inputColl = generate();
Selector::Collection cands;
cands.reserve(inputColl.size());
for (auto const &c : inputColl)
cands.push_back(&c);
Selector::Mask mask;
m_selector->eval(cands, mask);
CPPUNIT_ASSERT(2 == std::count(mask.begin(), mask.end(), true));
int ind = 0;
cands.erase(
std::remove_if(
cands.begin(), cands.end(), [&](Selector::Collection::value_type const &) { return !mask[ind++]; }),
cands.end());
CPPUNIT_ASSERT(2 == cands.size());
}
Selector const *m_selector = nullptr;
};
struct MyAnalyzer2 {
using Selector = reco::SelectInCollection<reco::LeafCandidate>;
explicit MyAnalyzer2(std::string const &cut) {
std::string sexpr = "void eval(Collection & c) const override{";
sexpr += "\n auto cut = [](reco::LeafCandidate const & cand){ return " + cut + ";};\n";
sexpr += "select(c,cut); }";
std::cerr << "testing " << sexpr << std::endl;
try {
reco::ExpressionEvaluator eval(
"CommonTools/CandUtils", "reco::SelectInCollection<reco::LeafCandidate>", sexpr.c_str());
m_selector = eval.expr<Selector>();
CPPUNIT_ASSERT(m_selector);
} catch (cms::Exception const &e) {
std::cerr << e.what() << std::endl;
CPPUNIT_ASSERT("ExpressionEvaluator threw" == 0);
}
}
void analyze() const {
auto inputColl = generate();
Selector::Collection cands;
cands.reserve(inputColl.size());
for (auto const &c : inputColl)
cands.push_back(&c);
m_selector->eval(cands);
CPPUNIT_ASSERT(2 == cands.size());
}
Selector const *m_selector = nullptr;
};
} // namespace
void testExpressionEvaluator::checkAll() {
reco::CompositeCandidate cand;
reco::Candidate::LorentzVector p1(1, 2, 3, 4);
reco::Candidate::LorentzVector p2(1.1, -2.5, 4.3, 13.7);
reco::LeafCandidate c1(+1, p1);
reco::LeafCandidate c2(-1, p2);
cand.addDaughter(c1);
cand.addDaughter(c2);
CPPUNIT_ASSERT(cand.numberOfDaughters() == 2);
CPPUNIT_ASSERT(cand.daughter(0) != 0);
CPPUNIT_ASSERT(cand.daughter(1) != 0);
{
checkCandidate(cand, "cand.numberOfDaughters()", cand.numberOfDaughters());
checkCandidate(cand, "cand.daughter(0)->isStandAloneMuon()", cand.daughter(0)->isStandAloneMuon());
checkCandidate(cand, "cand.daughter(1)->isStandAloneMuon()", cand.daughter(1)->isStandAloneMuon());
checkCandidate(cand, "cand.daughter(0)->pt()", cand.daughter(0)->pt());
checkCandidate(cand, "cand.daughter(1)->pt()", cand.daughter(1)->pt());
checkCandidate(cand,
"std::min(cand.daughter(0)->pt(), cand.daughter(1)->pt())",
std::min(cand.daughter(0)->pt(), cand.daughter(1)->pt()));
checkCandidate(cand,
"std::max(cand.daughter(0)->pt(), cand.daughter(1)->pt())",
std::max(cand.daughter(0)->pt(), cand.daughter(1)->pt()));
checkCandidate(cand,
"reco::deltaPhi(cand.daughter(0)->phi(), cand.daughter(1)->phi())",
reco::deltaPhi(cand.daughter(0)->phi(), cand.daughter(1)->phi()));
// check also opposite order, to see that the sign is correct
checkCandidate(cand,
"reco::deltaPhi(cand.daughter(1)->phi(), cand.daughter(0)->phi())",
reco::deltaPhi(cand.daughter(1)->phi(), cand.daughter(0)->phi()));
checkCandidate(
cand, "reco::deltaR(*cand.daughter(0), *cand.daughter(1))", reco::deltaR(*cand.daughter(0), *cand.daughter(1)));
}
MyAnalyzer analyzer("cand.pt()>15 & std::abs(cand.eta())<2");
analyzer.analyze();
MyAnalyzer2 analyzer2("cand.pt()>15 & std::abs(cand.eta())<2");
analyzer2.analyze();
// pat
std::vector<reco::LeafCandidate> cands;
cands.push_back(c1);
cands.push_back(c2);
edm::TestHandle<std::vector<reco::LeafCandidate>> constituentsHandle(&cands, edm::ProductID(42));
reco::Jet::Constituents constituents;
constituents.push_back(reco::Jet::Constituent(constituentsHandle, 0));
constituents.push_back(reco::Jet::Constituent(constituentsHandle, 1));
reco::CaloJet::Specific caloSpecific;
caloSpecific.mMaxEInEmTowers = 0.5;
pat::Jet jet(reco::CaloJet(p1 + p2, reco::Jet::Point(), caloSpecific, constituents));
{
std::string expression = "jet.userData<math::XYZVector>(\"my2int\")";
std::cerr << "testing " << expression << std::endl;
try {
//provide definition of the virtual function as a string
std::string sexpr = "math::XYZVector const * operator()(pat::Jet const& jet) const override { return ";
sexpr += expression + ";}";
// obtain a pointer to the base class (to be stored in Filter and Analyser at thier costruction time!)
auto const *expr =
reco_expressionEvaluator("CommonTools/RecoUtils",
SINGLE_ARG(reco::genericExpression<math::XYZVector const *, pat::Jet const &>),
sexpr);
CPPUNIT_ASSERT(expr);
// invoke
CPPUNIT_ASSERT((*expr)(jet) == nullptr);
jet.addUserData("my2int", math::XYZVector(-2, -1, 2));
CPPUNIT_ASSERT(jet.userData<math::XYZVector>("my2int")->z() == 2);
std::cout << "now expr eval" << std::endl;
CPPUNIT_ASSERT((*expr)(jet)->z() == 2);
} catch (cms::Exception const &e) {
// if compilation fails, the compiler output is part of the exception message
std::cerr << e.what() << std::endl;
CPPUNIT_ASSERT("ExpressionEvaluator threw" == 0);
}
}
}
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