ENH: Increase coverage for itk::RandomImageSource

Increase coverage for `itk::RandomImageSource`:
- Exercise basic object methods using the
  `ITK_EXERCISE_BASIC_OBJECT_METHODS` macro.
- Test the Set/Get methods using the `ITK_TEST_SET_GET_VALUE` macro.

Add the accompanying content data link file.

Modules/Core/TestKernel/test/Baseline/itkRandomImageSourceValuesTest.mha.sha512

@@ -0,0 +1 @@
+350ff29c22d89ca426c8791b56272b2449f965fb920117406d9c01874bc365f4ddaee3445b529cd831d7c59ce209d060c046bce4cf18dd04e91823b4fca45578

Modules/Core/TestKernel/test/CMakeLists.txt

@@ -1,5 +1,7 @@
 itk_module_test()
 set(ITKTestKernelTests
+itkRandomImageSourceAttributesTest.cxx
+itkRandomImageSourceValuesTest.cxx
 itkTestingExtractSliceImageFilterTest.cxx
 itkTestingStretchIntensityImageFilterTest.cxx
 )
@@ -9,6 +11,14 @@ CreateTestDriver(ITKTestKernel "${ITKTestKernel-Test_LIBRARIES}" "${ITKTestKerne
 set(BASELINE "${ITK_DATA_ROOT}/Baseline/Common")
 set(TEMP ${ITK_TEST_OUTPUT_DIR})
 
+itk_add_test(NAME itkRandomImageSourceAttributesTest
+  COMMAND ITKTestKernelTestDriver itkRandomImageSourceAttributesTest)
+
+itk_add_test(NAME itkRandomImageSourceValuesTest
+  COMMAND ITKTestKernelTestDriver
+  --compare DATA{Baseline/itkRandomImageSourceValuesTest.mha} ${ITK_TEST_OUTPUT_DIR}/itkRandomImageSourceValuesTest.mha
+  itkRandomImageSourceValuesTest ${ITK_TEST_OUTPUT_DIR}/itkRandomImageSourceValuesTest.mha)
+
 itk_add_test(NAME itkTestingExtractSliceImageFilterTest
   COMMAND ITKTestKernelTestDriver itkTestingExtractSliceImageFilterTest)
 

Modules/Core/TestKernel/test/itkRandomImageSourceAttributesTest.cxx

@@ -0,0 +1,104 @@
+/*=========================================================================
+ *
+ *  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 "itkRandomImageSource.h"
+#include "itkTestingMacros.h"
+
+
+template <typename TImage>
+int
+itkRandomImageSourceAttributesTestHelper(const typename TImage::SizeType      size,
+                                         const typename TImage::SpacingType   spacing,
+                                         const typename TImage::PointType     origin,
+                                         const typename TImage::DirectionType direction,
+                                         const typename TImage::ValueType     min,
+                                         const typename TImage::ValueType     max)
+{
+
+  using ImageSourceType = itk::RandomImageSource<TImage>;
+  auto randomImageSource = ImageSourceType::New();
+
+  ITK_EXERCISE_BASIC_OBJECT_METHODS(randomImageSource, RandomImageSource, ImageSource);
+
+
+  randomImageSource->SetSize(size);
+  ITK_TEST_SET_GET_VALUE(*size.GetSize(), *randomImageSource->GetSize());
+
+  randomImageSource->SetSpacing(spacing);
+  ITK_TEST_SET_GET_VALUE(spacing, randomImageSource->GetSpacing());
+
+  randomImageSource->SetOrigin(origin);
+  ITK_TEST_SET_GET_VALUE(origin, randomImageSource->GetOrigin());
+
+  randomImageSource->SetDirection(direction);
+  ITK_TEST_SET_GET_VALUE(direction, randomImageSource->GetDirection());
+
+  randomImageSource->SetMin(min);
+  ITK_TEST_SET_GET_VALUE(min, randomImageSource->GetMin());
+
+  randomImageSource->SetMax(max);
+  ITK_TEST_SET_GET_VALUE(max, randomImageSource->GetMax());
+
+
+  return EXIT_SUCCESS;
+}
+
+
+int
+itkRandomImageSourceAttributesTest(int, char *[])
+{
+
+  constexpr unsigned int Dimension2D = 2;
+  constexpr unsigned int Dimension3D = 3;
+
+  using PixelType = float;
+
+  int testStatus = EXIT_SUCCESS;
+
+  {
+    using ImageType2D = itk::Image<PixelType, Dimension2D>;
+
+    const ImageType2D::SizeType      size{ 25, 25 };
+    const ImageType2D::SpacingType   spacing{ { 0.7, 2.1 } };
+    const ImageType2D::PointType     origin{ { -1.7, 5.2 } };
+    const double                     d[4] = { 0, 1.0, 1.0, 0 };
+    const ImageType2D::DirectionType direction = ImageType2D::DirectionType::InternalMatrixType(d);
+    const ImageType2D::ValueType     min{ 0.0 };
+    const ImageType2D::ValueType     max{ 1000.0 };
+
+    testStatus = itkRandomImageSourceAttributesTestHelper<ImageType2D>(size, spacing, origin, direction, min, max);
+  }
+
+  {
+    using ImageType3D = itk::Image<PixelType, Dimension3D>;
+
+    const ImageType3D::SizeType      size{ 14, 17, 36 };
+    const ImageType3D::SpacingType   spacing{ { 0.7, 0.4, 1.2 } };
+    const ImageType3D::PointType     origin{ { -1.7, 5.2, 3.4 } };
+    const double                     d[9] = { 0, 1.0, 0, 1.0, 0, 0, 0, 1.0, 0 };
+    const ImageType3D::DirectionType direction = ImageType3D::DirectionType::InternalMatrixType(d);
+    const ImageType3D::ValueType     min{ 0.0 };
+    const ImageType3D::ValueType     max{ 10.0 };
+
+    testStatus = itkRandomImageSourceAttributesTestHelper<ImageType3D>(size, spacing, origin, direction, min, max);
+  }
+
+
+  std::cout << "Test finished." << std::endl;
+  return testStatus;
+}

Modules/Core/TestKernel/test/itkRandomImageSourceValuesTest.cxx

@@ -0,0 +1,58 @@
+/*=========================================================================
+ *
+ *  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 "itkRandomImageSource.h"
+#include "itkTestingMacros.h"
+
+
+int
+itkRandomImageSourceValuesTest(int argc, char * argv[])
+{
+  if (argc != 2)
+  {
+    std::cerr << "Missing parameters." << std::endl;
+    std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " outputFileName" << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  constexpr unsigned int Dimension = 2;
+
+  using PixelType = float;
+  using ImageType = itk::Image<PixelType, Dimension>;
+
+  using ImageSourceType = itk::RandomImageSource<ImageType>;
+  auto randomImageSource = ImageSourceType::New();
+
+  const ImageType::SizeType size{ { 10, 10 } };
+  randomImageSource->SetSize(size);
+
+  randomImageSource->SetMin(0.0);
+  randomImageSource->SetMax(20.0);
+
+  randomImageSource->SetNumberOfWorkUnits(1);
+
+  ITK_TRY_EXPECT_NO_EXCEPTION(randomImageSource->Update());
+
+
+  itk::WriteImage(randomImageSource->GetOutput(), argv[1]);
+
+
+  std::cout << "Test finished." << std::endl;
+  return EXIT_SUCCESS;
+}