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JsonDigitizationConfigTests.cpp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2021 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/Algebra.hpp"
12 #include "Acts/Definitions/TrackParametrization.hpp"
13 #include "Acts/Utilities/BinUtility.hpp"
14 #include "Acts/Utilities/BinningType.hpp"
15 #include "ActsExamples/Digitization/DigitizationConfig.hpp"
16 #include "ActsExamples/Digitization/Smearers.hpp"
17 #include "ActsExamples/Io/Json/JsonDigitizationConfig.hpp"
18 #include "ActsFatras/Digitization/UncorrelatedHitSmearer.hpp"
19 
20 #include <fstream>
21 #include <string>
22 #include <vector>
23 
24 #include <nlohmann/json.hpp>
25 
26 using namespace Acts;
27 
28 BOOST_AUTO_TEST_SUITE(JsonDigitizationConfig)
29 
30 BOOST_AUTO_TEST_CASE(DigitizationConfigRoundTrip) {
31  std::ofstream out;
32 
33  // As all SurfaceBounds have the same streaming API only a one is
34  // tested here, all others are tests are identical
35 
36  ActsExamples::DigiComponentsConfig dcf;
37 
38  ActsExamples::GeometricConfig gdc;
39 
40  Acts::BinUtility segmentation;
41  segmentation += Acts::BinUtility(336, -8.4, 8.4, Acts::open, Acts::binX);
42  segmentation += Acts::BinUtility(1280, -36, 36, Acts::open, Acts::binY);
43 
44  gdc.segmentation = segmentation;
45  gdc.threshold = 0.01;
46  gdc.thickness = 0.15;
47  gdc.indices = {Acts::eBoundLoc0, Acts::eBoundLoc1};
48  gdc.chargeSmearer = ActsExamples::Digitization::Gauss(1.0);
49 
50  ActsExamples::DigiComponentsConfig dcRef;
51  dcRef.geometricDigiConfig = gdc;
52 
53  nlohmann::json dcJsonOut(dcRef);
54  out.open("DigiComponentsConfig.json");
55  out << dcJsonOut.dump(2);
56  out.close();
57 
58  auto in = std::ifstream("DigiComponentsConfig.json",
59  std::ifstream::in | std::ifstream::binary);
60  BOOST_CHECK(in.good());
61  nlohmann::json dcJsonIn;
62  in >> dcJsonIn;
63  in.close();
64 
65  ActsExamples::DigiComponentsConfig dcTest(dcJsonIn);
66  BOOST_CHECK(dcTest.geometricDigiConfig.indices ==
67  dcRef.geometricDigiConfig.indices);
68  BOOST_CHECK(dcTest.geometricDigiConfig.segmentation.dimensions() ==
69  dcRef.geometricDigiConfig.segmentation.dimensions());
70 }
71 
72 BOOST_AUTO_TEST_SUITE_END()