vtk-m2/vtkm/cont/testing/UnitTestParticleArrayCopy.cxx
2020-08-26 08:59:51 -04:00

78 lines
2.6 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
//
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//============================================================================
#include <random>
#include <vtkm/cont/ParticleArrayCopy.h>
#include <vtkm/cont/testing/Testing.h>
void TestParticleArrayCopy()
{
std::random_device device;
std::default_random_engine generator(static_cast<vtkm::UInt32>(277));
vtkm::FloatDefault x0(-1), x1(1);
std::uniform_real_distribution<vtkm::FloatDefault> dist(x0, x1);
std::vector<vtkm::Particle> particles;
vtkm::Id N = 17;
for (vtkm::Id i = 0; i < N; i++)
{
auto x = dist(generator);
auto y = dist(generator);
auto z = dist(generator);
particles.push_back(vtkm::Particle(vtkm::Vec3f(x, y, z), i));
}
for (int i = 0; i < 2; i++)
{
auto particleAH = vtkm::cont::make_ArrayHandle(particles, vtkm::CopyFlag::Off);
//Test copy position only
if (i == 0)
{
vtkm::cont::ArrayHandle<vtkm::Vec3f> pos;
vtkm::cont::ParticleArrayCopy<vtkm::Particle>(particleAH, pos);
auto pPortal = particleAH.ReadPortal();
for (vtkm::Id j = 0; j < N; j++)
{
auto p = pPortal.Get(j);
auto pt = pos.ReadPortal().Get(j);
VTKM_TEST_ASSERT(p.Pos == pt, "Positions do not match");
}
}
else //Test copy everything
{
vtkm::cont::ArrayHandle<vtkm::Vec3f> pos;
vtkm::cont::ArrayHandle<vtkm::Id> ids, steps;
vtkm::cont::ArrayHandle<vtkm::ParticleStatus> status;
vtkm::cont::ArrayHandle<vtkm::FloatDefault> ptime;
vtkm::cont::ParticleArrayCopy<vtkm::Particle>(particleAH, pos, ids, steps, status, ptime);
auto pPortal = particleAH.ReadPortal();
for (vtkm::Id j = 0; j < N; j++)
{
auto p = pPortal.Get(j);
auto pt = pos.ReadPortal().Get(j);
VTKM_TEST_ASSERT(p.Pos == pt, "Positions do not match");
VTKM_TEST_ASSERT(p.ID == ids.ReadPortal().Get(j), "IDs do not match");
VTKM_TEST_ASSERT(p.NumSteps == steps.ReadPortal().Get(j), "Steps do not match");
VTKM_TEST_ASSERT(p.Status == status.ReadPortal().Get(j), "Steps do not match");
VTKM_TEST_ASSERT(p.Time == ptime.ReadPortal().Get(j), "Times do not match");
}
}
}
}
int UnitTestParticleArrayCopy(int argc, char* argv[])
{
return vtkm::cont::testing::Testing::Run(TestParticleArrayCopy, argc, argv);
}