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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 "itkImageFileReader.h"
#include "itkImage.h"
#include "itkGTest.h"
#include "itksys/SystemTools.hxx"
#include "itkTestDriverIncludeRequiredFactories.h"
#define STRING(s) #s
namespace
{
struct ITKWriteImageFunctionTest : public ::testing::Test
{
void
SetUp() override
{
RegisterRequiredFactories();
itksys::SystemTools::ChangeDirectory(STRING(ITK_TEST_OUTPUT_DIR_STR));
}
using ImageType = itk::Image<float, 2>;
using RegionType = ImageType::RegionType;
using SizeType = ImageType::SizeType;
ImageType::Pointer
MakeImage()
{
auto image = ImageType::New();
RegionType region(SizeType{ { 3, 2 } });
image->SetRegions(region);
image->AllocateInitialized();
return image;
}
};
} // namespace
TEST_F(ITKWriteImageFunctionTest, ImageTypes)
{
const std::string fileName = "test1.mha";
ImageType::Pointer image_ptr = MakeImage();
itk::WriteImage(image_ptr, fileName);
itk::WriteImage(std::move(image_ptr), fileName);
ImageType::ConstPointer image_cptr = MakeImage();
itk::WriteImage(image_cptr, fileName);
itk::WriteImage(std::move(image_cptr), fileName);
const ImageType::ConstPointer image_ccptr = MakeImage();
itk::WriteImage(image_ccptr, fileName);
itk::WriteImage(std::move(image_ccptr), fileName);
image_ptr = MakeImage();
ImageType * image_rptr = image_ptr.GetPointer();
itk::WriteImage(image_rptr, fileName);
const ImageType * image_crptr = image_ptr.GetPointer();
itk::WriteImage(image_crptr, fileName);
// Test that what is written is also read back.
const ImageType::ConstPointer readImage = itk::ReadImage<ImageType>(fileName);
ASSERT_NE(readImage, nullptr);
ASSERT_NE(image_ccptr, nullptr);
EXPECT_EQ(*readImage, *image_ccptr);
}
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