ENH: Test ImageBase, ImageRegion GetImageDimension() at compile-time

Tested `GetImageDimension()` at compile-time, now that it is declared `constexpr`.
Kitware · Sep 9, 2024 · 5bc130f · 5bc130f
1 parent 08776a4
commit 5bc130f
Show file tree

Hide file tree

Showing 2 changed files with 16 additions and 0 deletions.
diff --git a/Modules/Core/Common/test/itkImageBaseGTest.cxx b/Modules/Core/Common/test/itkImageBaseGTest.cxx
@@ -29,6 +29,14 @@
 
 namespace
 {
+// Tells whether GetImageDimension() returns ImageDimension, for all of the specified values of VImageDimension.
+template <unsigned int... VImageDimension>
+constexpr bool GetImageDimension_returns_ImageDimension{ (
+  (itk::ImageBase<VImageDimension>::GetImageDimension() == VImageDimension) && ...) };
+
+static_assert(GetImageDimension_returns_ImageDimension<2, 3, 4>, "GetImageDimension() should return ImageDimension.");
+
+
 template <typename T1, typename T2>
 void
 Expect_same_type_and_equal_value(T1 && value1, T2 && value2)

diff --git a/Modules/Core/Common/test/itkImageRegionGTest.cxx b/Modules/Core/Common/test/itkImageRegionGTest.cxx
@@ -26,6 +26,14 @@
 
 namespace
 {
+// Tells whether GetImageDimension() returns ImageDimension, for all of the specified values of VImageDimension.
+template <unsigned int... VImageDimension>
+constexpr bool GetImageDimension_returns_ImageDimension{ (
+  (itk::ImageRegion<VImageDimension>::GetImageDimension() == VImageDimension) && ...) };
+
+static_assert(GetImageDimension_returns_ImageDimension<2, 3, 4>, "GetImageDimension() should return ImageDimension.");
+
+
 template <unsigned int VDimension>
 constexpr bool
 CheckTrivialCopyabilityOfImageRegion()