COMP: Adding test for CreateWithMatrixAndOffset

Author: hjmjohnson

Modules/Core/Transform/test/itkMatrixOffsetTransformBaseGTest.cxx

@@ -77,3 +77,31 @@ TEST(MatrixOffsetTransformBase, SetFixedParametersThrowsWhenSizeIsLessThanNDimen
   Assert_SetFixedParameters_throws_when_size_is_less_than_NDimensions<3>();
   Assert_SetFixedParameters_throws_when_size_is_less_than_NDimensions<4>();
 }
+
+// Check that fixed parameters are set to default values during construction.
+TEST(MatrixOffsetTransformBase, CreateWithMatrixAndOffset)
+{
+  class DerivedTransform : public itk::MatrixOffsetTransformBase<>
+  {
+  public:
+    ITK_DISALLOW_COPY_AND_MOVE(DerivedTransform);
+
+    static auto
+    Create()
+    {
+      // Indirectly call the `MatrixOffsetTransformBase(const MatrixType &, const OutputVectorType &)` constructor.
+      const itk::SmartPointer<DerivedTransform> ptr = new DerivedTransform(MatrixType(), OutputVectorType());
+      ptr->UnRegister();
+      return ptr;
+    }
+
+  private:
+    // Inherit the constructors of MatrixOffsetTransformBase:
+    using itk::MatrixOffsetTransformBase<>::MatrixOffsetTransformBase;
+  };
+
+  const auto                                  transform = DerivedTransform::Create();
+  const DerivedTransform::FixedParametersType expectedFixedParameters(DerivedTransform::InputSpaceDimension, 0);
+
+  EXPECT_EQ(transform->GetFixedParameters(), expectedFixedParameters);
+}