mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-16 17:22:55 +00:00
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#include <vtkm/cont/ArrayHandleRandomUniformReal.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <vtkm/worklet/DescriptiveStatistics.h>
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void TestRangeBounds()
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{
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// the random numbers should fall into the range of [0, 1).
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auto array = vtkm::cont::ArrayHandleRandomUniformReal<vtkm::Float32>(100, { 0xceed });
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auto portal = array.ReadPortal();
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for (vtkm::Id i = 0; i < array.GetNumberOfValues(); ++i)
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{
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auto value = portal.Get(i);
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VTKM_TEST_ASSERT(0.0 <= value && value < 1.0);
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}
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}
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void TestStatisticsProperty()
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{
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auto array = vtkm::cont::ArrayHandleRandomUniformReal<vtkm::Float32>(10000, { 0xceed });
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auto result = vtkm::worklet::DescriptiveStatistics::Run(array);
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VTKM_TEST_ASSERT(test_equal(result.Mean(), 0.5, 0.001));
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VTKM_TEST_ASSERT(test_equal(result.SampleVariance(), 1.0 / 12.0, 0.001));
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}
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void TestArrayHandleUniformReal()
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{
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TestRangeBounds();
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TestStatisticsProperty();
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}
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int UnitTestArrayHandleRandomUniformReal(int argc, char* argv[])
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{
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return vtkm::cont::testing::Testing::Run(TestArrayHandleUniformReal, argc, argv);
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}
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