VisualizationTests.cpp

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// This file is part of the Acts project.
//
// Copyright (C) 2019 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#include <boost/test/tools/output_test_stream.hpp>
#include <boost/test/unit_test.hpp>

#include <iostream>
#include <string>

#include "Acts/Visualization/IVisualization.hpp"
#include "Acts/Visualization/ObjVisualization.hpp"
#include "Acts/Visualization/PlyVisualization.hpp"
#include "VisualizationTester.hpp"

using boost::test_tools::output_test_stream;

namespace Acts {
namespace Test {

BOOST_AUTO_TEST_SUITE(Visualization)

BOOST_AUTO_TEST_CASE(VisualizationTesterObj) {
  // Test the tester
  std::string validObj = R"(# obj test file
mtllib material.mtl
usemtl material_a
g rectangle
vn 0 0 1
vt 0 0 1
v -15 -15 0
v 15 -15 0
v 15 15 0
v -15 15 0
f 1 2 3 4
l 1 2
l 2 3
l 3 4
l 4 1
)";

  // Valid obj
  auto objErrors = testObjString(validObj);
  BOOST_CHECK(objErrors.size() == 0);

  // Valid obj, but triangular mesh is requested
  objErrors = testObjString(validObj, true);
  BOOST_CHECK(objErrors.size() == 1);
  for (auto objerr : objErrors) {
    std::cout << objerr << std::endl;
  }

  // Non-valid obj - it has 4 errors
  std::string invalidObj = R"(# obj test file
mtllib material.mtl
usemtl material_a
x whatever
g rectangle
vn 0 0 1
vt 0 0 1
v -15 -15 0 23
v 15 -15 0
v 15. 15 0
v -15 15. 0
f 1 2 3. 4
l 0 2
l 2 3
l 3 4
l 4 1
)";

  objErrors = testObjString(invalidObj);
  BOOST_CHECK(objErrors.size() == 4);
  for (auto objerr : objErrors) {
    std::cout << objerr << std::endl;
  }
}

BOOST_AUTO_TEST_CASE(VisualizationTesterPly) {
  // Test the tester
  std::string validPly = R"(ply
format ascii 1.0    
comment made by Greg Turk
comment this file is a cube
element vertex 8
property float x
property float y
property float z
element face 6
property list uchar int vertex_indices
end_header
0 0 0
0 0 1
0 1 1
0 1 0
1 0 0
1 0 1
1 1 1
1 1 0
4 0 1 2 3
4 7 6 5 4
4 0 4 5 1
4 1 5 6 2
4 2 6 7 3
4 3 7 4 0
)";

  // Valid ply
  auto plyErrors = testPlyString(validPly);
  BOOST_CHECK(plyErrors.size() == 0);

  // Valid ply, but triangular mesh is requested
  plyErrors = testPlyString(validPly, true);
  BOOST_CHECK(plyErrors.size() == 0);
  for (auto plyerr : plyErrors) {
    std::cout << plyerr << std::endl;
  }

  // Test the tester - contains 3 errors
  std::string invalidPly = R"(ply
format ascii 1.0    
comment made by Greg Turk
comment this file is a cube
element vertex 8
property float x
property float y
property float z
element face 6
property list uchar int vertex_indices
whatever i write here
end_header
0 0 0 0
0 0 1
0 1 1
0 1 0
1 0 0
1 0 1
1 1 1
1 1 0
4 0 1 2 3
4 7 6 5 4
4 0 4 5 1
4 1 5 6
4 2 6 7 3
4 3 7 4 0
)";

  // Valid ply, but triangular mesh is requested
  plyErrors = testPlyString(invalidPly);
  BOOST_CHECK(plyErrors.size() == 3);
  for (auto plyerr : plyErrors) {
    std::cout << plyerr << std::endl;
  }
}

BOOST_AUTO_TEST_CASE(VisualizationConstruction) {
  // this doesn't really test anything, other than conformance to the
  // IVisualization interface
  PlyVisualization ply;
  ObjVisualization obj;

  IVisualization* vis;
  vis = &ply;
  std::cout << *vis << std::endl;
  vis = &obj;
  std::cout << *vis << std::endl;
}

BOOST_AUTO_TEST_CASE(PlyOutputTest) {
  PlyVisualization ply;
  output_test_stream output;

  ply.vertex({0, 0, 0});

  std::string exp = R"(ply
format ascii 1.0
element vertex 1
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
element face 0
property list uchar int vertex_index
element edge 0
property int vertex1
property int vertex2
property uchar red
property uchar green
property uchar blue
end_header
0 0 0 120 120 120
)";

  output << ply;
  BOOST_CHECK(output.is_equal(exp));

  ply.clear();
  ply.vertex({0, 1, 0});

  exp = R"(ply
format ascii 1.0
element vertex 1
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
element face 0
property list uchar int vertex_index
element edge 0
property int vertex1
property int vertex2
property uchar red
property uchar green
property uchar blue
end_header
0 1 0 120 120 120
)";

  output << ply;
  BOOST_CHECK(output.is_equal(exp));

  ply.clear();
  ply.line({0, 0, 1}, {1, 0, 0});

  output << ply;

  exp = R"(ply
format ascii 1.0
element vertex 2
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
element face 0
property list uchar int vertex_index
element edge 1
property int vertex1
property int vertex2
property uchar red
property uchar green
property uchar blue
end_header
0 0 1 120 120 120
1 0 0 120 120 120
0 1 120 120 120
)";

  BOOST_CHECK(output.is_equal(exp));

  ply.clear();
  ply.face({{1, 0, 0}, {1, 1, 0}, {0, 1, 0}});

  output << ply;

  exp = R"(ply
format ascii 1.0
element vertex 3
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
element face 1
property list uchar int vertex_index
element edge 0
property int vertex1
property int vertex2
property uchar red
property uchar green
property uchar blue
end_header
1 0 0 120 120 120
1 1 0 120 120 120
0 1 0 120 120 120
3 0 1 2
)";

  BOOST_CHECK(output.is_equal(exp));
}

BOOST_AUTO_TEST_CASE(ObjOutputTest) {
  ObjVisualization obj;

  output_test_stream output;

  obj.vertex({1, 0, 0});

  output << obj;

  std::string exp = R"(v 1 0 0
)";

  BOOST_CHECK(output.is_equal(exp));

  obj.clear();
  obj.face({{1, 0, 0}, {1, 1, 0}, {0, 1, 0}});
  output << obj;

  exp = R"(v 1 0 0
v 1 1 0
v 0 1 0
f 1 2 3
)";

  BOOST_CHECK(output.is_equal(exp));
}

BOOST_AUTO_TEST_SUITE_END()
}  // namespace Test
}  // namespace Acts