Including `itkDCMTKFileReader.h` in a test file produces a compiler error

CMakeLists.txt

itk_module_test()
set(ITKIODCMTKTests
  itkDCMTKGetDicomTagsTest.cxx
  itkDCMTKImageIOTest.cxx
  itkDCMTKRGBImageIOTest.cxx
  itkDCMTKSeriesReadImageWrite.cxx
  itkDCMTKSeriesStreamReadImageWrite.cxx
  itkDCMTKImageIOOrthoDirTest.cxx
  itkDCMTKMultiFrame4DTest.cxx
  itkDCMTKLoggerTest.cxx
  itkDCMTKImageIOSlopeInterceptTest.cxx
  itkDCMTKImageIOMultiFrameImageTest.cxx
  itkDCMTKImageIONoPreambleTest.cxx
)

CreateTestDriver(ITKIODCMTK "${ITKIODCMTK-Test_LIBRARIES}" "${ITKIODCMTKTests}")

itk_add_test(NAME itkDCMTKGetDicomTagsTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKGetDicomTagsTest
  DATA{${ITK_DATA_ROOT}/Input/DicomSeries/,REGEX:Image[0-9]+.dcm})

itk_add_test(NAME itkDCMTKImageIOTest1
  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIOTest
  DATA{${ITK_DATA_ROOT}/Input/dicom-sc_cs-1.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest.dcm
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest.png
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKRescaleImageIOTest.dcm)

itk_add_test(NAME itkDCMTKImageIOTest2
  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIOTest
  DATA{${ITK_DATA_ROOT}/Input/itkGDCMImageIOTest.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest2.dcm
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest2.png
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKRescaleImageIOTest2.dcm)

itk_add_test(NAME itkDCMTKImageIOTest3
  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIOTest
  DATA{${ITK_DATA_ROOT}/Input/012345.002.050}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest3.dcm
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest3.png
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKRescaleImageIOTest3.dcm)

itk_add_test(NAME itkDCMTKImageIOTest4 COMMAND ITKIODCMTKTestDriver
  itkDCMTKImageIOTest
  DATA{${ITK_DATA_ROOT}/Input/itkGDCMImageIOTest3.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest4.dcm
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKImageIOTest4.png
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKRescaleImageIOTest4.dcm)

itk_add_test(NAME itkDCMTKSeriesReadImageWrite
  COMMAND ITKIODCMTKTestDriver itkDCMTKSeriesReadImageWrite
  DATA{${ITK_DATA_ROOT}/Input/DicomSeries/,REGEX:Image[0-9]+.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKSeriesReadImageWrite.vtk 0 0 0)

itk_add_test(NAME itkDCMTKDirCosinesTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKSeriesReadImageWrite
  DATA{${ITK_DATA_ROOT}/Input/DicomDirectionsTest/,REGEX:1020_[0-9]+.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKSeriesReadImageWrite.vtk 0 0 0)

set_property(TEST itkDCMTKSeriesReadImageWrite APPEND PROPERTY DEPENDS ITKData)

itk_add_test(NAME itkDCMTKSeriesStreamReadImageWrite1
  COMMAND ITKIODCMTKTestDriver itkDCMTKSeriesStreamReadImageWrite
  DATA{${ITK_DATA_ROOT}/Input/DicomSeries/,REGEX:Image[0-9]+.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKSeriesStreamReadImageWrite1.mhd
  0.859375 0.85939 1.60016 0)

itk_add_test(NAME itkDCMTKSeriesImageOrientationWrite1
  COMMAND ITKIODCMTKTestDriver
  --compareCoordinateTolerance 1e-3
  --compare DATA{Baseline/itkDCMTKSeriesImageOrientationWrite1.mha}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKSeriesImageOrientationWrite1.mha
  itkDCMTKSeriesReadImageWrite
  DATA{${ITK_DATA_ROOT}/Input/DicomImageOrientationTest/,REGEX:ImageOrientation.[0-9]+.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKSeriesImageOrientationWrite1.mha 0 0 0)

itk_add_test(NAME itkDCMTKImageIOOrthoDirTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIOOrthoDirTest
  DATA{${ITK_DATA_ROOT}/Input/OrthogonalDirectionsTest.dcm})

itk_add_test(NAME itkDCMTKMultiFrame4DTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKMultiFrame4DTest
  DATA{${ITK_DATA_ROOT}/Input/Philips_4D_DICOM.dcm}
  ${ITK_TEST_OUTPUT_DIR}/Philips_4D_DICOM.nrrd)

itk_add_test(NAME itkDCMTKImageIONonSquareTest
  COMMAND ITKIODCMTKTestDriver
    --compare DATA{Baseline/itkDCMTKNonSquare.nii.gz}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKNonSquare.nii.gz
  itkDCMTKImageIOTest
  DATA{${ITK_DATA_ROOT}/Input/itkDCMTKNonSquare.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKNonSquare.nii.gz
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKNonSquare.nii.gz
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKNonSquareRescale.dcm)

itk_add_test(NAME itkDCMTKRGBImageIOColorImageTest
  COMMAND ITKIODCMTKTestDriver
    --compare DATA{Baseline/itkDCMTKColorImage.png}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKColorImage.png
  itkDCMTKRGBImageIOTest
  DATA{${ITK_DATA_ROOT}/Input/RGBDicomTest.dcm}
  ${ITK_TEST_OUTPUT_DIR}/itkDCMTKColorImage.png)

itk_add_test(NAME ITKDCMTKLoggerTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKLoggerTest
  )

itk_add_test(NAME itkDCMTKImageIOSlopeInterceptTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIOSlopeInterceptTest
  DATA{Input/slopeInterceptOrig.dcm}
  DATA{Input/slopeIntercept.dcm}
  )

# Requires additional logic in DCMTKFileReader::GetSpacing
#itk_add_test(NAME itkDCMTKImageIOMultiFrameImageTest
#  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIOMultiFrameImageTest
#  DATA{Input/MultiFrameDicomTest.dcm}
#  )

itk_add_test(NAME itkDCMTKImageIONoPreambleTest
  COMMAND ITKIODCMTKTestDriver itkDCMTKImageIONoPreambleTest
  DATA{Input/NoPreambleDicomTest.dcm}
  )

itkDCMTKGetDicomTagsTest.cxx

/*=========================================================================
 *
 *  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 "itkDCMTKFileReader.h"
#include "itkTestingMacros.h"


int
itkDCMTKGetDicomTagsTest(int argc, char * argv[])
{

  if (argc != 2)
  {
    std::cerr << "Missing Parameters." << std::endl;
    std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " DicomImage" << std::endl;
    return EXIT_FAILURE;
  }

  itk::DCMTKFileReader fileReader;
  fileReader.SetFileName(argv[1]);
  fileReader.LoadFile();


  std::cout << "Test finished." << std::endl;
  return EXIT_SUCCESS;
}