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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkConstantBoundaryCondition.h"
#include "itkPadImageFilter.h"
int
itkPadImageFilterTest(int, char *[])
{
using ShortImage = itk::Image<short, 2>;
using SizeType = ShortImage::SizeType;
using SizeValueType = ShortImage::SizeValueType;
using FilterType = itk::PadImageFilter<ShortImage, ShortImage>;
auto padFilter = FilterType::New();
SizeType lowerBound = { { 1, 2 } };
SizeType upperBound = { { 3, 4 } };
SizeValueType lowerBoundArray[2] = { 1, 2 };
SizeValueType upperBoundArray[2] = { 3, 4 };
padFilter->SetPadLowerBound(lowerBound);
if (padFilter->GetPadLowerBound() != lowerBound)
{
std::cerr << "Lower bound not recovered while testing SetLowerBound(SizeType). Got "
<< padFilter->GetPadLowerBound() << ", expected " << lowerBound << std::endl;
return EXIT_FAILURE;
}
padFilter->SetPadLowerBound(lowerBoundArray);
if (padFilter->GetPadLowerBound() != lowerBound)
{
std::cerr << "Lower bound not recovered while testing SetLowerBound(SizeValueType[]). Got "
<< padFilter->GetPadLowerBound() << ", expected " << lowerBound << std::endl;
return EXIT_FAILURE;
}
padFilter->SetPadUpperBound(upperBound);
if (padFilter->GetPadUpperBound() != upperBound)
{
std::cerr << "Upper bound not recovered while testing SetUpperBound(SizeType). Got "
<< padFilter->GetPadUpperBound() << ", expected " << upperBound << std::endl;
return EXIT_FAILURE;
}
padFilter->SetPadUpperBound(upperBoundArray);
if (padFilter->GetPadUpperBound() != upperBound)
{
std::cerr << "Upper bound not recovered while testing SetUpperBound(SizeValueType[]). Got "
<< padFilter->GetPadUpperBound() << ", expected " << upperBound << std::endl;
return EXIT_FAILURE;
}
padFilter->SetPadBound(lowerBound);
if (padFilter->GetPadLowerBound() != lowerBound)
{
std::cerr << "Lower bound not recovered while testing SetPadBound(). Got " << padFilter->GetPadLowerBound()
<< ", expected " << lowerBound << std::endl;
return EXIT_FAILURE;
}
if (padFilter->GetPadUpperBound() != lowerBound)
{
std::cerr << "Upper bound not recovered while testing SetPadBound(). Got " << padFilter->GetPadUpperBound()
<< ", expected " << lowerBound << std::endl;
return EXIT_FAILURE;
}
if (padFilter->GetBoundaryCondition() != nullptr)
{
std::cerr << "Default BoundaryCondition was not nullptr." << std::endl;
return EXIT_FAILURE;
}
itk::ConstantBoundaryCondition<ShortImage> bc;
bc.SetConstant(13);
padFilter->SetBoundaryCondition(&bc);
if (padFilter->GetBoundaryCondition() != &bc)
{
std::cerr << "Set/GetBoundaryCondition test failed." << std::endl;
return EXIT_FAILURE;
}
// Fill in a test image
auto inputImage = ShortImage::New();
ShortImage::SizeType inputSize = { { 1, 1 } };
ShortImage::RegionType inputRegion(inputSize);
inputImage->SetRegions(inputRegion);
inputImage->Allocate();
inputImage->FillBuffer(1);
lowerBound.Fill(2);
padFilter->SetPadBound(lowerBound);
padFilter->SetInput(inputImage);
padFilter->UpdateLargestPossibleRegion();
// Checkout output values
ShortImage::Pointer output = padFilter->GetOutput();
for (int j = -2; j <= 2; ++j)
{
for (int i = -2; i <= 2; ++i)
{
ShortImage::IndexType index;
index[0] = i;
index[1] = j;
short pixel = output->GetPixel(index);
std::cout << pixel << ' ';
if (index[0] == 0 && index[1] == 0)
{
if (pixel != 1)
{
std::cerr << "Center pixel has unexpected value " << pixel << ", expected " << 1 << std::endl;
return EXIT_FAILURE;
}
}
else
{
if (pixel != 13)
{
std::cerr << "Padded pixel at index " << index << " has unexpected value " << pixel << ", expected " << 13
<< std::endl;
return EXIT_FAILURE;
}
}
}
std::cout << std::endl;
}
// Set the boundary condition back to nullptr and check that exception
// is thrown.
std::cout << "Testing that exception is thrown when boundary condition is nullptr." << std::endl;
padFilter->SetBoundaryCondition(nullptr);
try
{
padFilter->Update();
std::cerr << "Failed to catch expected exception when boundary condition is nullptr." << std::endl;
return EXIT_FAILURE;
}
catch (const itk::ExceptionObject & e)
{
std::cout << "Caught expected exception when boundary condition is nullptr." << std::endl;
std::cout << e << std::endl;
}
catch (...)
{
std::cerr << "Exception caught, but not the expected kind." << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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