Core/EventData/TrackStatePropMaskTests.cpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #include <boost/test/unit_test.hpp>
0010
0011 #include "Acts/EventData/TrackStatePropMask.hpp"
0012 #include "Acts/Utilities/Helpers.hpp"
0013
0014 #include <array>
0015 #include <bitset>
0016 #include <cstddef>
0017 #include <type_traits>
0018
0019 using namespace Acts;
0020
0021 BOOST_AUTO_TEST_SUITE(TrackStatePropMaskTest)
0022
0023 BOOST_AUTO_TEST_CASE(BitmaskOperators) {
0024   using PM = TrackStatePropMask;
0025
0026   auto bs1 = PM::Predicted;
0027
0028   BOOST_CHECK(ACTS_CHECK_BIT(bs1, PM::Predicted));
0029   BOOST_CHECK(!ACTS_CHECK_BIT(bs1, PM::Calibrated));
0030
0031   auto bs2 = PM::Calibrated;
0032
0033   BOOST_CHECK(!ACTS_CHECK_BIT(bs2, PM::Predicted));
0034   BOOST_CHECK(ACTS_CHECK_BIT(bs2, PM::Calibrated));
0035
0036   auto bs3 = PM::Calibrated | PM::Predicted;
0037
0038   BOOST_CHECK(ACTS_CHECK_BIT(bs3, PM::Predicted));
0039   BOOST_CHECK(ACTS_CHECK_BIT(bs3, PM::Calibrated));
0040
0041   BOOST_CHECK(ACTS_CHECK_BIT(PM::All, PM::Predicted));
0042   BOOST_CHECK(ACTS_CHECK_BIT(PM::All, PM::Calibrated));
0043
0044   auto bs4 = PM::Predicted | PM::Jacobian | PM::Smoothed;
0045   BOOST_CHECK(ACTS_CHECK_BIT(bs4, PM::Predicted));
0046   BOOST_CHECK(ACTS_CHECK_BIT(bs4, PM::Jacobian));
0047   BOOST_CHECK(ACTS_CHECK_BIT(bs4, PM::Smoothed));
0048   BOOST_CHECK(!ACTS_CHECK_BIT(bs4, PM::Calibrated));
0049   BOOST_CHECK(!ACTS_CHECK_BIT(bs4, PM::Filtered));
0050
0051   auto cnv = [](auto a) -> std::bitset<8> {
0052     return static_cast<std::underlying_type_t<PM>>(a);
0053   };
0054
0055   BOOST_CHECK(cnv(PM::All).all());    // all ones
0056   BOOST_CHECK(cnv(PM::None).none());  // all zeros
0057
0058   // test orthogonality
0059   std::array<PM, 5> values{PM::Predicted, PM::Filtered, PM::Smoothed,
0060                            PM::Jacobian, PM::Calibrated};
0061   for (std::size_t i = 0; i < values.size(); i++) {
0062     for (std::size_t j = 0; j < values.size(); j++) {
0063       PM a = values[i];
0064       PM b = values[j];
0065
0066       if (i == j) {
0067         BOOST_CHECK_EQUAL(cnv(a & b).count(), 1);
0068       } else {
0069         BOOST_CHECK(cnv(a & b).none());
0070       }
0071     }
0072   }
0073
0074   BOOST_CHECK_EQUAL(cnv(PM::Predicted ^ PM::Filtered).count(), 2);
0075   BOOST_CHECK(cnv(PM::Predicted ^ PM::Predicted).none());
0076   BOOST_CHECK_EQUAL(~(PM::Predicted | PM::Calibrated),
0077                     (PM::All ^ PM::Predicted ^ PM::Calibrated));
0078
0079   PM base = PM::None;
0080   BOOST_CHECK_EQUAL(cnv(base), 0);
0081
0082   base &= PM::Filtered;
0083   BOOST_CHECK_EQUAL(cnv(base), 0);
0084
0085   base |= PM::Filtered;
0086   BOOST_CHECK_EQUAL(base, PM::Filtered);
0087
0088   base |= PM::Calibrated;
0089   BOOST_CHECK_EQUAL(base, (PM::Filtered | PM::Calibrated));
0090
0091   base ^= PM::All;
0092   BOOST_CHECK_EQUAL(base, ~(PM::Filtered | PM::Calibrated));
0093 }
0094 BOOST_AUTO_TEST_SUITE_END()