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// $Id: testMakeCompositeCandidate.cc,v 1.1 2009/02/26 09:17:35 llista Exp $
#include <cppunit/extensions/HelperMacros.h>
#include "DataFormats/Candidate/interface/LeafCandidate.h"
#include "CommonTools/CandUtils/interface/makeCompositeCandidate.h"
#include "CommonTools/CandUtils/interface/AddFourMomenta.h"
using namespace reco;
using namespace std;
namespace test {
class DummyCandidate : public reco::LeafCandidate {
public:
DummyCandidate(const LorentzVector& p, Charge q = 0) : reco::LeafCandidate(q, p) {}
virtual DummyCandidate* clone() const { return new DummyCandidate(*this); }
};
} // namespace test
class testMakeCompositeCandidate : public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(testMakeCompositeCandidate);
CPPUNIT_TEST(checkAll);
CPPUNIT_TEST_SUITE_END();
public:
void setUp() {}
void tearDown() {}
void checkAll();
};
CPPUNIT_TEST_SUITE_REGISTRATION(testMakeCompositeCandidate);
void testMakeCompositeCandidate::checkAll() {
reco::Particle::LorentzVector p1(1.0, 2.0, 3.0, 4.0), p2(1.5, 2.5, 3.5, 4.5);
reco::Particle::Charge q1(1), q2(-1);
test::DummyCandidate t1(p1, q1);
test::DummyCandidate t2(p2, q2);
unique_ptr<Candidate> cmp = makeCompositeCandidate(t1, t2)[AddFourMomenta()];
CPPUNIT_ASSERT(cmp->numberOfDaughters() == 2);
const reco::Candidate* d[2];
d[0] = cmp->daughter(0);
d[1] = cmp->daughter(1);
const double epsilon = 1.e-5;
CPPUNIT_ASSERT(d[0]->charge() == q1);
CPPUNIT_ASSERT(fabs(d[0]->p4().pt() - p1.pt()) < epsilon);
CPPUNIT_ASSERT(fabs(d[0]->p4().eta() - p1.eta()) < epsilon);
CPPUNIT_ASSERT(fabs(d[0]->p4().phi() - p1.phi()) < epsilon);
CPPUNIT_ASSERT(d[1]->charge() == q2);
CPPUNIT_ASSERT(fabs(d[1]->p4().pt() - p2.pt()) < epsilon);
CPPUNIT_ASSERT(fabs(d[1]->p4().eta() - p2.eta()) < epsilon);
CPPUNIT_ASSERT(fabs(d[1]->p4().phi() - p2.phi()) < epsilon);
reco::Particle::LorentzVector ptot = p1 + p2;
CPPUNIT_ASSERT(fabs(cmp->pt() - ptot.pt()) < epsilon);
CPPUNIT_ASSERT(fabs(cmp->eta() - ptot.eta()) < epsilon);
CPPUNIT_ASSERT(fabs(cmp->phi() - ptot.phi()) < epsilon);
unique_ptr<Candidate> cmp3 = makeCompositeCandidate(t1, t2, t1)[AddFourMomenta()];
unique_ptr<Candidate> cmp4 = makeCompositeCandidate(t1, t2, t1, t2)[AddFourMomenta()];
}
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