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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 "itkImageFileWriter.h"
#include "itkTestingMacros.h"
int
itkImageFileWriterTest(int argc, char * argv[])
{
if (argc < 2)
{
std::cout << "Usage: " << itkNameOfTestExecutableMacro(argv) << " outputFileName " << std::endl;
return EXIT_FAILURE;
}
using ImageNDType = itk::Image<short, 2>;
using WriterType = itk::ImageFileWriter<ImageNDType>;
auto image = ImageNDType::New();
ImageNDType::RegionType region;
ImageNDType::IndexType index;
ImageNDType::SizeType size;
size.Fill(5);
index.Fill(0);
region.SetSize(size);
region.SetIndex(index);
image->SetRegions(region);
image->Allocate();
// Try an empty write
int status = 1;
try
{
auto writer = WriterType::New();
writer->Update();
}
catch (const itk::ExceptionObject & ex)
{
std::cout << "------------------ Caught expected exception!" << std::endl;
std::cout << ex;
status = 0;
}
if (status)
{
std::cout << "Failed to catch expected exception." << std::endl;
return EXIT_FAILURE;
}
// Now try an image but no filename
status = 1;
try
{
auto writer = WriterType::New();
writer->SetInput(image);
writer->Update();
}
catch (const itk::ExceptionObject & ex)
{
std::cout << "------------------ Caught expected exception!" << std::endl;
std::cout << ex;
status = 0;
}
if (status)
{
std::cout << "Failed to catch expected exception." << std::endl;
return EXIT_FAILURE;
}
// Now try a write with an image but a bad output extension
status = 1;
try
{
auto writer = WriterType::New();
writer->SetInput(image);
writer->SetFileName("this_is_a_bad_filename");
writer->Update();
}
catch (const itk::ExceptionObject & ex)
{
std::cout << "------------------ Caught expected exception!" << std::endl;
std::cout << ex;
status = 0;
}
if (status)
{
std::cout << "Failed to catch expected exception." << std::endl;
return EXIT_FAILURE;
}
// Let's not be too negative. Try a write to a valid file.
status = 1;
try
{
auto writer = WriterType::New();
writer->SetInput(image);
writer->SetFileName(argv[1]);
writer->Update();
}
catch (const itk::ExceptionObject & ex)
{
std::cout << "------------------ Caught expected exception!" << std::endl;
std::cout << ex;
status = 0;
}
if (status)
{
std::cout << "Failed to catch expected exception." << std::endl;
return EXIT_FAILURE;
}
// Let's do the same with UpdateLargestPossibleRegion(), to make sure it does something
status = 1;
try
{
auto writer = WriterType::New();
writer->SetInput(image);
writer->SetFileName(argv[1]);
writer->UpdateLargestPossibleRegion();
}
catch (const itk::ExceptionObject & ex)
{
std::cout << "------------------ Caught expected exception!" << std::endl;
std::cout << ex;
status = 0;
}
if (status)
{
std::cout << "Failed to catch expected exception." << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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