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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/Definitions/ParticleData.hpp"
12 #include "Acts/Definitions/PdgParticle.hpp"
13 #include "Acts/Definitions/Units.hpp"
14 #include "Acts/Tests/CommonHelpers/FloatComparisons.hpp"
15 
16 #include <cmath>
17 #include <string_view>
18 
19 using namespace Acts;
20 using namespace Acts::UnitLiterals;
21 
22 namespace {
23 // NOTE: the used mass comparison values are not as exact as the data values
24 static constexpr float eps = 0.001f;
25 } // namespace
26 
27 BOOST_AUTO_TEST_SUITE(FatrasParticleData)
28 
29 BOOST_AUTO_TEST_CASE(InvalidInput) {
30  BOOST_CHECK(!findCharge(PdgParticle::eInvalid));
31  BOOST_CHECK(!findMass(PdgParticle::eInvalid));
32  BOOST_CHECK(!findName(PdgParticle::eInvalid));
33 }
34 
35 BOOST_AUTO_TEST_CASE(Electron) {
36  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::eAntiElectron), 1_e);
37  CHECK_CLOSE_REL(*findMass(PdgParticle::eAntiElectron), 511_keV, eps);
38  BOOST_CHECK_EQUAL(*findName(PdgParticle::eAntiElectron), "e+");
39  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::eElectron), -1_e);
40  CHECK_CLOSE_REL(*findMass(PdgParticle::eElectron), 511_keV, eps);
41  BOOST_CHECK_EQUAL(*findName(PdgParticle::eElectron), "e-");
42  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::ePositron), 1_e);
43  CHECK_CLOSE_REL(*findMass(PdgParticle::ePositron), 511_keV, eps);
44  BOOST_CHECK_EQUAL(*findName(PdgParticle::ePositron), "e+");
45 }
46 
47 BOOST_AUTO_TEST_CASE(Gamma) {
48  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::eGamma), 0);
49  BOOST_CHECK_EQUAL(*findMass(PdgParticle::eGamma), 0);
50  BOOST_CHECK_EQUAL(*findName(PdgParticle::eGamma), "gamma");
51 }
52 
53 BOOST_AUTO_TEST_CASE(Pion) {
54  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::ePionMinus), -1_e);
55  CHECK_CLOSE_REL(*findMass(PdgParticle::ePionMinus), 139.57_MeV, eps);
56  BOOST_CHECK_EQUAL(*findName(PdgParticle::ePionMinus), "pi-");
57  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::ePionPlus), 1_e);
58  CHECK_CLOSE_REL(*findMass(PdgParticle::ePionPlus), 139.57_MeV, eps);
59  BOOST_CHECK_EQUAL(*findName(PdgParticle::ePionPlus), "pi+");
60  BOOST_CHECK_EQUAL(*findCharge(PdgParticle::ePionZero), 0);
61  CHECK_CLOSE_REL(*findMass(PdgParticle::ePionZero), 134.98_MeV, eps);
62  BOOST_CHECK_EQUAL(*findName(PdgParticle::ePionZero), "pi0");
63 }
64 
65 BOOST_AUTO_TEST_SUITE_END()