Merge pull request #5655 from N-Dekker/FillBuffer-in-ImageIntensity-tests

STYLE: Replace iterations with FillBuffer calls in ImageIntensity tests

Author: hjmjohnson

Modules/Filtering/ImageIntensity/test/itkAtan2ImageFilterTest.cxx

@@ -68,24 +68,14 @@ itkAtan2ImageFilterTest(int, char *[])
 
   // Initialize the content of Image A
   const double sinValue = std::sin(itk::Math::pi / 6.0);
-  it1.GoToBegin();
-  while (!it1.IsAtEnd())
-  {
-    it1.Set(sinValue);
-    ++it1;
-  }
+  sinImage->FillBuffer(sinValue);
 
   // Create one iterator for the Input Image (this is a light object)
   InputIteratorType it2(cosImage, cosImage->GetBufferedRegion());
 
   // Initialize the content of Image A
   const double cosValue = std::cos(itk::Math::pi / 6.0);
-  it2.GoToBegin();
-  while (!it2.IsAtEnd())
-  {
-    it2.Set(cosValue);
-    ++it2;
-  }
+  cosImage->FillBuffer(cosValue);
 
   // Declare the type for the Atan filter
   using FilterType = itk::Atan2ImageFilter<InputImageType, InputImageType, OutputImageType>;

Modules/Filtering/ImageIntensity/test/itkImageAdaptorNthElementTest.cxx

@@ -98,11 +98,7 @@ itkImageAdaptorNthElementTest(int, char *[])
   initialPixelValue[1] = 11;
   initialPixelValue[2] = 17;
 
-  while (!it.IsAtEnd())
-  {
-    it.Set(initialPixelValue);
-    ++it;
-  }
+  myContainerPixelImage->FillBuffer(initialPixelValue);
 
   std::cout << "Initial Container Image Values : " << std::endl;
   it.GoToBegin();
@@ -142,11 +138,7 @@ itkImageAdaptorNthElementTest(int, char *[])
 
   constexpr myFloatPixelType initialFloatValue{ 5.0 };
 
-  while (!itf.IsAtEnd())
-  {
-    itf.Set(initialFloatValue);
-    ++itf;
-  }
+  myFloatImage->FillBuffer(initialFloatValue);
 
   std::cout << "Initial Float Image Values : " << std::endl;
   itf.GoToBegin();

Modules/Filtering/ImageIntensity/test/itkVectorToRGBImageAdaptorTest.cxx

@@ -81,12 +81,7 @@ itkVectorToRGBImageAdaptorTest(int, char *[])
   vector[2] = 1.4;
 
   // Initializing all the pixel in the image
-  it1.GoToBegin();
-  while (!it1.IsAtEnd())
-  {
-    it1.Set(vector);
-    ++it1;
-  }
+  image->FillBuffer(vector);
 
   // Reading the values to verify the image content
   std::cout << "--- Before --- " << std::endl;