vtk-m2/vtkm/worklet/testing/UnitTestMagnitude.cxx
2018-02-23 10:47:20 -05:00

70 lines
2.3 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.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#include <vtkm/worklet/DispatcherMapField.h>
#include <vtkm/worklet/Magnitude.h>
#include <vtkm/cont/testing/Testing.h>
namespace
{
void TestMagnitude()
{
std::cout << "Testing Magnitude Worklet" << std::endl;
vtkm::worklet::Magnitude magnitudeWorklet;
using ArrayReturnType = vtkm::cont::ArrayHandle<vtkm::Float64>;
using ArrayVectorType = vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Int32, 4>>;
using PortalType = ArrayVectorType::PortalControl;
ArrayVectorType pythagoreanTriples;
pythagoreanTriples.Allocate(5);
PortalType pt = pythagoreanTriples.GetPortalControl();
pt.Set(0, vtkm::make_Vec(3, 4, 5, 0));
pt.Set(1, vtkm::make_Vec(5, 12, 13, 0));
pt.Set(2, vtkm::make_Vec(8, 15, 17, 0));
pt.Set(3, vtkm::make_Vec(7, 24, 25, 0));
pt.Set(4, vtkm::make_Vec(9, 40, 41, 0));
vtkm::worklet::DispatcherMapField<vtkm::worklet::Magnitude> dispatcher(magnitudeWorklet);
ArrayReturnType result;
dispatcher.Invoke(pythagoreanTriples, result);
for (vtkm::Id i = 0; i < result.GetNumberOfValues(); ++i)
{
VTKM_TEST_ASSERT(
test_equal(std::sqrt(pt.Get(i)[0] * pt.Get(i)[0] + pt.Get(i)[1] * pt.Get(i)[1] +
pt.Get(i)[2] * pt.Get(i)[2]),
result.GetPortalConstControl().Get(i)),
"Wrong result for Magnitude worklet");
}
}
}
int UnitTestMagnitude(int, char* [])
{
return vtkm::cont::testing::Testing::Run(TestMagnitude);
}