Core/Geometry/GeometryIdentifierTests.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/Geometry/GeometryIdentifier.hpp"
0012
0013 namespace Acts::Test {
0014
0015 BOOST_AUTO_TEST_CASE(GeometryIdentifier_construct_default) {
0016   GeometryIdentifier id;
0017   BOOST_CHECK_EQUAL(id.volume(), 0u);
0018   BOOST_CHECK_EQUAL(id.boundary(), 0u);
0019   BOOST_CHECK_EQUAL(id.layer(), 0u);
0020   BOOST_CHECK_EQUAL(id.approach(), 0u);
0021   BOOST_CHECK_EQUAL(id.sensitive(), 0u);
0022 }
0023
0024 BOOST_AUTO_TEST_CASE(GeometryIdentifier_construct_encoded) {
0025   // not sure if it is a good idea to test for the encoding since it should be
0026   // an implementation detail. only the resulting functionality is relevant.
0027   GeometryIdentifier id = 0xa0b00c00d00affe0u;
0028   BOOST_CHECK_EQUAL(id.volume(), 0xa0u);
0029   BOOST_CHECK_EQUAL(id.boundary(), 0xb0u);
0030   BOOST_CHECK_EQUAL(id.layer(), 0x0c0u);
0031   BOOST_CHECK_EQUAL(id.approach(), 0x0du);
0032   BOOST_CHECK_EQUAL(id.sensitive(), 0x00affu);
0033   BOOST_CHECK_EQUAL(id.extra(), 0xe0u);
0034 }
0035
0036 BOOST_AUTO_TEST_CASE(GeometryIdentifier_max_values) {
0037   // compute maximum value for each component
0038   constexpr GeometryIdentifier::Value volumeMax = (1u << 8) - 1;
0039   constexpr GeometryIdentifier::Value boundaryMax = (1u << 8) - 1;
0040   constexpr GeometryIdentifier::Value layerMax = (1u << 12) - 1;
0041   constexpr GeometryIdentifier::Value approachMax = (1u << 8) - 1;
0042   constexpr GeometryIdentifier::Value sensitiveMax = (1u << 20) - 1;
0043   constexpr GeometryIdentifier::Value extraMax = (1u << 8) - 1;
0044   // reference values non-zero values everywhere
0045   constexpr GeometryIdentifier ref = 0xdeadaffe01234567;
0046   // values above the maximum are truncated
0047   // max+1 has all available bits zeroed
0048   BOOST_CHECK_EQUAL(GeometryIdentifier(ref).setVolume(volumeMax + 1),
0049                     GeometryIdentifier(ref).setVolume(0u));
0050   BOOST_CHECK_EQUAL(GeometryIdentifier(ref).setBoundary(boundaryMax + 1),
0051                     GeometryIdentifier(ref).setBoundary(0u));
0052   BOOST_CHECK_EQUAL(GeometryIdentifier(ref).setLayer(layerMax + 1),
0053                     GeometryIdentifier(ref).setLayer(0u));
0054   BOOST_CHECK_EQUAL(GeometryIdentifier(ref).setApproach(approachMax + 1),
0055                     GeometryIdentifier(ref).setApproach(0u));
0056   BOOST_CHECK_EQUAL(GeometryIdentifier(ref).setSensitive(sensitiveMax + 1),
0057                     GeometryIdentifier(ref).setSensitive(0u));
0058   BOOST_CHECK_EQUAL(GeometryIdentifier(ref).setExtra(extraMax + 1),
0059                     GeometryIdentifier(ref).setExtra(0u));
0060 }
0061
0062 BOOST_AUTO_TEST_CASE(GeometryIdentifier_order) {
0063   auto vol1 = GeometryIdentifier()
0064                   .setVolume(1u)
0065                   .setLayer(14u)
0066                   .setSensitive(5u)
0067                   .setExtra(42u);
0068   auto vol2 = GeometryIdentifier()
0069                   .setVolume(2u)
0070                   .setLayer(13u)
0071                   .setSensitive(3u)
0072                   .setExtra(43u);
0073   // order uses volume first even if other components are larger
0074   BOOST_CHECK_LT(vol1, vol2);
0075   BOOST_CHECK_LT(GeometryIdentifier(vol1).setBoundary(64u), vol2);
0076   BOOST_CHECK_LT(GeometryIdentifier(vol1).setLayer(64u), vol2);
0077   BOOST_CHECK_LT(GeometryIdentifier(vol1).setApproach(64u), vol2);
0078   BOOST_CHECK_LT(GeometryIdentifier(vol1).setSensitive(64u), vol2);
0079   BOOST_CHECK_LT(GeometryIdentifier(vol1).setSensitive(64u), vol2);
0080   BOOST_CHECK_LT(vol2, GeometryIdentifier(vol1).setVolume(3u));
0081   // other components are hierarchical
0082   BOOST_CHECK_LT(GeometryIdentifier(vol1).setVolume(1u).setBoundary(2u),
0083                  GeometryIdentifier(vol1).setVolume(2u).setBoundary(1u));
0084   BOOST_CHECK_LT(GeometryIdentifier(vol1).setBoundary(1u).setLayer(2u),
0085                  GeometryIdentifier(vol1).setBoundary(2u).setLayer(1u));
0086   BOOST_CHECK_LT(GeometryIdentifier(vol1).setLayer(1u).setApproach(2u),
0087                  GeometryIdentifier(vol1).setLayer(2u).setApproach(1u));
0088   BOOST_CHECK_LT(GeometryIdentifier(vol1).setApproach(1u).setSensitive(2u),
0089                  GeometryIdentifier(vol1).setApproach(2u).setSensitive(1u));
0090   BOOST_CHECK_LT(GeometryIdentifier(vol1).setSensitive(1u).setExtra(2u),
0091                  GeometryIdentifier(vol1).setSensitive(2u).setExtra(1u));
0092 }
0093
0094 }  // namespace Acts::Test