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ParticleDataTests.cpp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2018-2020 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 #include <boost/test/unit_test.hpp>
10 
11 #include "Acts/Tests/CommonHelpers/FloatComparisons.hpp"
12 #include "Acts/Utilities/Units.hpp"
13 #include "ActsFatras/Utilities/ParticleData.hpp"
14 
15 using Acts::PdgParticle;
16 using namespace Acts::UnitLiterals;
17 using namespace ActsFatras;
18 
19 namespace {
20 // NOTE: the used mass comparison values are not as exact as the data values
21 static constexpr float eps = 0.001f;
22 } // namespace
23 
24 BOOST_AUTO_TEST_SUITE(FatrasParticleData)
25 
26 BOOST_AUTO_TEST_CASE(InvalidInput) {
27  BOOST_CHECK(std::isnan(findCharge(PdgParticle::eInvalid)));
28  BOOST_CHECK_EQUAL(findMass(PdgParticle::eInvalid), 0.0f);
29  BOOST_CHECK(findName(PdgParticle::eInvalid).empty());
30 }
31 
32 BOOST_AUTO_TEST_CASE(Electron) {
33  BOOST_CHECK_EQUAL(findCharge(PdgParticle::eAntiElectron), 1_e);
34  CHECK_CLOSE_REL(findMass(PdgParticle::eAntiElectron), 511_keV, eps);
35  BOOST_CHECK_EQUAL(findName(PdgParticle::eAntiElectron), "e+");
36  BOOST_CHECK_EQUAL(findCharge(PdgParticle::eElectron), -1_e);
37  CHECK_CLOSE_REL(findMass(PdgParticle::eElectron), 511_keV, eps);
38  BOOST_CHECK_EQUAL(findName(PdgParticle::eElectron), "e-");
39  BOOST_CHECK_EQUAL(findCharge(PdgParticle::ePositron), 1_e);
40  CHECK_CLOSE_REL(findMass(PdgParticle::ePositron), 511_keV, eps);
41  BOOST_CHECK_EQUAL(findName(PdgParticle::ePositron), "e+");
42 }
43 
44 BOOST_AUTO_TEST_CASE(Gamma) {
45  BOOST_CHECK_EQUAL(findCharge(PdgParticle::eGamma), 0);
46  BOOST_CHECK_EQUAL(findMass(PdgParticle::eGamma), 0);
47  BOOST_CHECK_EQUAL(findName(PdgParticle::eGamma), "gamma");
48 }
49 
50 BOOST_AUTO_TEST_CASE(Pion) {
51  BOOST_CHECK_EQUAL(findCharge(PdgParticle::ePionMinus), -1_e);
52  CHECK_CLOSE_REL(findMass(PdgParticle::ePionMinus), 139.57_MeV, eps);
53  BOOST_CHECK_EQUAL(findName(PdgParticle::ePionMinus), "pi-");
54  BOOST_CHECK_EQUAL(findCharge(PdgParticle::ePionPlus), 1_e);
55  CHECK_CLOSE_REL(findMass(PdgParticle::ePionPlus), 139.57_MeV, eps);
56  BOOST_CHECK_EQUAL(findName(PdgParticle::ePionPlus), "pi+");
57  BOOST_CHECK_EQUAL(findCharge(PdgParticle::ePionZero), 0);
58  CHECK_CLOSE_REL(findMass(PdgParticle::ePionZero), 134.98_MeV, eps);
59  BOOST_CHECK_EQUAL(findName(PdgParticle::ePionZero), "pi0");
60 }
61 
62 BOOST_AUTO_TEST_SUITE_END()