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#include <cppunit/extensions/HelperMacros.h>
#include "DataFormats/Candidate/interface/LeafCandidate.h"
#include "DataFormats/Candidate/interface/CompositeCandidate.h"
class testCompositeCandidate : public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(testCompositeCandidate);
CPPUNIT_TEST(checkAll);
CPPUNIT_TEST_SUITE_END();
public:
void setUp() {}
void tearDown() {}
void checkAll();
};
CPPUNIT_TEST_SUITE_REGISTRATION(testCompositeCandidate);
namespace test {
class DummyCandidate : public reco::LeafCandidate {
public:
DummyCandidate(const LorentzVector& p, Charge q = 0, int x = 0) : reco::LeafCandidate(q, p), x_(x) {}
virtual DummyCandidate* clone() const { return new DummyCandidate(*this); }
int x() const { return x_; }
private:
int x_;
};
} // namespace test
namespace reco {
GET_DEFAULT_CANDIDATE_COMPONENT(test::DummyCandidate, int, x);
}
namespace test {
struct DummyCandSelector {
DummyCandSelector(int x) : x_(x) {}
bool operator()(const reco::Candidate& c) const { return c.get<int>() == x_; }
private:
int x_;
};
} // namespace test
void testCompositeCandidate::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);
reco::CompositeCandidate c;
CPPUNIT_ASSERT(c.numberOfDaughters() == 0);
c.addDaughter(t1);
CPPUNIT_ASSERT(c.numberOfDaughters() == 1);
c.addDaughter(t2);
CPPUNIT_ASSERT(c.numberOfDaughters() == 2);
const reco::Candidate* d[2];
int idx = 0;
const reco::CompositeCandidate& cand = c;
CPPUNIT_ASSERT(c.numberOfDaughters() == 2);
for (reco::Candidate::const_iterator i = cand.begin(); i != cand.end(); ++i) {
d[idx++] = &*i;
}
CPPUNIT_ASSERT(d[0]->charge() == q1);
CPPUNIT_ASSERT((d[0]->p4() - p1).M2() < 1.e-4);
CPPUNIT_ASSERT(d[1]->charge() == q2);
CPPUNIT_ASSERT((d[1]->p4() - p2).M2() < 1.e-4);
}
}
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